Consumer medicine information

Oratane

Isotretinoin

BRAND INFORMATION

Brand name

Oratane

Active ingredient

Isotretinoin

Schedule

S4

 

Consumer medicine information (CMI) leaflet

Please read this leaflet carefully before you start using Oratane.

SUMMARY CMI

ORATANE

Consumer Medicine Information (CMI) summary

The full CMI on the next page has more details. If you are worried about using this medicine, speak to your doctor or pharmacist.

1. Why am I using ORATANE?

ORATANE contains the active ingredient isotretinoin. ORATANE is used to treat acne. For more information, see Section 1. Why am I using ORATANE? in the full CMI.

2. What should I know before I use ORATANE?

Do not use if you have ever had an allergic reaction to ORATANE or any of the ingredients listed at the end of the CMI.

Talk to your doctor if you have any other medical conditions, take any other medicines, or are pregnant or plan to become pregnant or are breastfeeding. For more information, see Section 2. What should I know before I use ORATANE? in the full CMI.

3. What if I am taking other medicines?

Some medicines may interfere with ORATANE and affect how it works. A list of these medicines is in Section 3. What if I am taking other medicines? in the full CMI.

4. How do I use ORATANE?

  • Your doctor will tell you how many ORATANE capsules to take each day, take them exactly as your doctor has prescribed.
  • ORATANE capsules should be swallowed whole with a glass of water or milk and must always be taken with food.

More instructions can be found in Section 4. How do I use ORATANE? in the full CMI.

5. What should I know while using ORATANE?

Things you should do
  • Remind any doctor, dentist or pharmacist you visit that you are using ORATANE.
  • Use effective contraception for one month before, during and one month after treatment.
  • If you become pregnant while taking ORATANE, stop taking it and tell your doctor immediately.
  • Tell your doctor if you are intending to do a lot of heavy lifting or exercise.
  • Your skin may be more sensitive while on ORATANE. Avoid excessive sun exposure and certain skin and hair treatments.
Things you should not do
  • Do not stop taking ORATANE suddenly, change the dose or let yourself run out of medicine over the weekend or on holidays.
  • Do not give ORATANE to anyone else even if their symptoms seem similar to yours.
  • Do not use ORATANE to treat other complaints unless your doctor says to.
  • Do not donate blood during treatment with ORATANE or for at least 1 month after stopping treatment.
Driving or using machines
  • Be careful driving or operating machinery until you know how ORATANE affects you.
Drinking alcohol
  • You must tell your doctor if you drink large amounts of alcohol.
Looking after your medicine
  • Keep the blister pack in a cool dry place where the temperature stays below 25°C.
  • Protect ORATANE from light.

For more information, see Section 5. What should I know while using ORATANE? in the full CMI.

6. Are there any side effects?

ORATANE helps most people with acne but it may have unwanted side effects in a few people. Sometimes they are serious, most of the time they are not. You may need medical treatment if you get some of the side effects. When you are using ORATANE, you can have some serious side effects. Serious side effects may include nausea, vomiting, persistent headache, blurred vision or visual disturbances, changes in your hearing or ringing in your ears, severe upper stomach pain, unexpected muscle pain, tenderness or weakness, blood in stools or severe diarrhoea, severe bruising, sudden red or itchy spots, painful red areas, fever and chills, aching muscles, feeling depressed with or without suicidal thoughts and thinking, seeing or hearing things that are not real.

For more information, including what to do if you have any side effects, see Section 6. Are there any side effects? in the full CMI.



FULL CMI

ORATANE (orr·a·tayn)

Active ingredient(s): isotretinoin


Consumer Medicine Information (CMI)

This leaflet provides important information about using ORATANE. You should also speak to your doctor or pharmacist if you would like further information or if you have any concerns or questions about using ORATANE.

Where to find information in this leaflet:

1. Why am I using ORATANE?
2. What should I know before I use ORATANE?
3. What if I am taking other medicines?
4. How do I use ORATANE?
5. What should I know while using ORATANE?
6. Are there any side effects?
7. Product details

1. Why am I using ORATANE?

ORATANE contains the active ingredient isotretinoin. ORATANE belongs to a group of medicines called retinoids, which are similar to vitamin A.

Retinoids work by reducing the amount of the oily substance (i.e. sebum) made by glands in your skin, reducing bacteria and inflammation and opening clogged pores.

ORATANE is used to treat acne. There are many different types of medicines used to treat acne. ORATANE is used for more severe cases.

Your doctor, however, may have prescribed ORATANE for another purpose.

Ask your doctor if you have any questions about why ORATANE has been prescribed for you.

This medicine is available only with a doctor's prescription. ORATANE is not addictive.

2. What should I know before I use ORATANE?

Warnings

Do not use ORATANE if:

  • you are allergic to isotretinoin, have had an allergic reaction to ORATANE, vitamin A, other retinoids or any of the ingredients listed at the end of this leaflet. Always check the ingredients to make sure you can use this medicine.
  • you are pregnant, or for at least one month before you plan to fall pregnant. If you fall pregnant while taking ORATANE there is an extremely high risk of having a baby that is severely deformed. You must use effective contraception for one month before, during and one month after treatment.
  • you are breastfeeding. You must stop breastfeeding before treatment begins. Do not breastfeed while taking ORATANE.
  • you are taking tetracycline antibiotics such as doxycycline
  • you have severe liver disease
  • you have very high fat levels (cholesterol, triglycerides) in your blood
  • you have hypervitaminosis A. This is a condition caused by an excessive amount of vitamin A in the diet.
  • the packaging is torn or shows signs of tampering
  • the expiry date (EXP) printed on the pack has passed. If you take this medicine after the expiry date has passed, it may not work as well.

If you are not sure if you should start taking ORATANE, contact your doctor.

Do not give ORATANE to children.

ORATANE may be associated with slowing of growth when used in children before puberty. The use of ORATANE in children less than 12 years of age is not recommended.

Check with your doctor if you:

  • you drink large amounts of alcohol
  • you have any allergies to any other medicines, foods, preservatives or dyes. ORATANE capsules contain soya oil, which may contain traces of arachidic acid (a component of peanut oil).
  • you have or have had any other health problems or issues including:
    - diabetes, or a history of diabetes in your family
    - depression
    - liver disease
    - kidney disease
    - lipid (cholesterol or triglyceride) disorder
    - hormone disorder
    - eye disorders
    - stomach or bowel disease

During treatment, you may be at risk of developing certain side effects. It is important you understand these risks and how to monitor for them. See additional information under Section 6. Are there any side effects?

Pregnancy and breastfeeding

If you become pregnant while taking ORATANE, stop taking it and tell your doctor immediately.

ORATANE can cause birth defects (damage to unborn babies). You must use strict birth control, starting at least 1 month before you begin taking ORATANE, for the whole time you are taking ORATANE and for 1 month after you finish taking ORATANE.

There is no known risk to males who wish to father children.

Talk to your doctor if you are breastfeeding or intend to breastfeed.

3. What if I am taking other medicines?

Tell your doctor or pharmacist if you are taking any other medicines, including any medicines, vitamins or supplements that you buy without a prescription from your pharmacy, supermarket or health food shop.

Some medicines may interfere with ORATANE and affect how it works. These include:

  • tetracycline antibiotics such as Doxycycline
  • vitamin A, or preparations containing vitamin A (including vitamin supplements)
  • other medicines you are using to treat your acne
  • the "mini-pill", a progestogen-only oral contraceptive pill

These medicines may be affected by ORATANE or may affect how well it works. You may need to take different amounts of your medicine, or you may need to take different medicines. Your doctor will advise you.

Check with your doctor or pharmacist if you are not sure about what medicines, vitamins or supplements you are taking and if these affect ORATANE.

4. How do I use ORATANE?

How much to take

  • Follow all directions given to you by your doctor or pharmacist carefully.
  • They may differ from the information contained in this leaflet.
  • Take ORATANE exactly as your doctor has prescribed.
  • Your doctor will tell you how many ORATANE capsules to take each day.
  • The dose will be calculated to suit your individual needs and your body weight. This dose may be adjusted during treatment when your doctor knows how you respond to ORATANE.

When to take ORATANE

  • ORATANE may be taken once or twice a day and must always be taken with food.
  • Female patients should wait until the 2nd or 3rd day of the next normal menstrual period before starting ORATANE treatment. This helps ensure that you aren't pregnant before you start taking ORATANE.

How to take ORATANE

  • Capsules should be swallowed whole with a glass of water or milk.
  • Do not open the capsules and do not take any capsules that are damaged.

How long to take ORATANE

  • Continue taking ORATANE for as long as your doctor prescribes.
  • Acne treatment with ORATANE will usually last 4 to 8 months. In the first few weeks of treatment your acne may get a little worse before it gets better. This is a sign that ORATANE is working.
  • At the end of this time your acne should have cleared up significantly. Most patients notice their skin condition continues to improve even after ORATANE treatment is finished.
  • Please note that ORATANE cannot improve scars or pitting that were present before treatment started, but it will help prevent such skin damage in the future.

If you forget to use ORATANE

ORATANE should be used regularly at the same time each day.

If it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to.

Do not take a double dose to make up for the dose you missed.

  • This may increase the chance of getting an unwanted side effect.
  • If you have missed several doses, please inform your doctor and follow the advice given to you.

If you take too much ORATANE (overdose)

If you think that you have used too much ORATANE, you may need urgent medical attention.

You should immediately:

  • phone the Poisons Information Centre
    (by calling 13 11 26), or
  • contact your doctor, or
  • go to the Emergency Department at your nearest hospital.

You should do this even if there are no signs of discomfort or poisoning.

You may need urgent medical attention.

Signs of overdose include transient headache; vomiting; facial flushing; reddened, cracked lips; stomach pain; headache; dizziness and unsteady walking.

5. What should I know while using ORATANE?

Call your doctor straight away if you become pregnant while taking ORATANE, stop taking it and tell your doctor immediately.

Things you should do

  • Remind any doctor, dentist or pharmacist you visit that you are using ORATANE.
  • Tell your doctor if, for any reason, you have not taken your medicine exactly as prescribed. Otherwise, your doctor may think that it was not effective and change your treatment unnecessarily.
  • Tell your doctor if you feel ORATANE capsules are not helping your condition.
  • Be sure to keep all of your appointments with your doctor so that your progress can be checked. Your doctor may ask you to have regular blood tests to monitor your liver function, blood sugar levels and blood cholesterol levels.
  • If you are intending to do a lot of heavy lifting or exercise, tell your doctor. Your muscles and joints may be more prone to tenderness or stiffness if you do a lot of heavy exercise while taking ORATANE.
  • If you experience dryness of the lips, mouth, nose or skin, you can use a moisturiser or petroleum jelly to soften the areas not affected by the acne.
  • Talk to your doctor if you experience persistent pain in your lower back or buttocks during treatment with ORATANE. These symptoms may be signs of sacroiliitis, a type of inflammatory back pain. Your doctor may discontinue treatment with ORATANE and refer you to a specialist for treatment of inflammatory back pain. Further evaluation may be needed including imaging modalities such as MRI.

Things you should not do

  • Do not stop taking ORATANE suddenly or change the dose without first checking with your doctor.
  • Do not let yourself run out of medicine over the weekend or on holidays.
  • Do not give ORATANE to anyone else even if their symptoms seem similar to yours.
  • Do not use ORATANE to treat other complaints unless your doctor says to.
  • Do not donate blood during treatment with ORATANE or for at least 1 month after stopping treatment.

Things to be careful of

  • Wearing contact lenses during treatment with ORATANE may cause discomfort. ORATANE may cause dry eyes. An eye lubricant or artificial tears, available from your pharmacist, should relieve this problem. Otherwise, you may temporarily need to wear your lenses for shorter periods or wear glasses instead.
  • Avoid excessive sun exposure and solariums and apply sunscreen whilst taking ORATANE. Your skin may be more prone to sunburn while on ORATANE.
  • Avoid waxing and dermabrasion whilst taking ORATANE and for 5 to 6 months after stopping ORATANE treatment. Your skin may be more sensitive while on ORATANE. Waxing may cause dermatitis and dermabrasion may cause scarring during and for several months after ORATANE treatment.
  • Avoid using facial peels, electrolysis and some hair treatments. Your skin and hair may be more delicate during treatment and for a while after ORATANE treatment.

Driving or using machines

Be careful before you drive or use any machines or tools until you know how ORATANE affects you.

Normally ORATANE would not affect your ability to drive a car or operate machinery. However, altered night vision and other visual disturbances may occur when taking ORATANE. Make sure you know how you react to ORATANE before you drive a car, operate machinery or do anything else that may be dangerous if your vision is affected.

Drinking alcohol

Tell your doctor if you drink alcohol.

Looking after your medicine

  • Keep your capsules in the blister pack until it is time to take them. If you take the capsules out of the packaging, they will not keep as well.
  • Store it in a cool dry place where the temperature stays below 25°C for Oratane 5mg, 10mg, 30mg & 40mg, and below 30°C for Oratane 20mg, away from moisture, heat or sunlight; for example, do not store it:
    - in the bathroom or near a sink, or
    - in the car or on windowsills.

Keep ORATANE where young children cannot reach it.

When to discard your medicine

If your doctor tells you to stop taking ORATANE, or the capsules have passed their expiry date, ask your pharmacist what to do with any capsules that are left over.

Getting rid of any unwanted medicine

If you no longer need to use this medicine or it is out of date, take it to any pharmacy for safe disposal.

Do not use this medicine after the expiry date.

6. Are there any side effects?

All medicines can have side effects. If you do experience any side effects, most of them are minor and temporary. However, some side effects may need medical attention.

See the information below and, if you need to, ask your doctor or pharmacist if you have any further questions about side effects.

Less serious side effects

Less serious side effectsWhat to do
Symptoms associated with an excess of Vitamin A in the body (hypervitaminosis A):
  • dryness of the lips, mouth, nose and skin
  • peeling palms of the hands and soles of the feet
  • eye problems such as dry, sore swollen or itchy eyes, discharge or trouble seeing at night
  • hoarseness
  • nosebleeds
Symptoms associated with skin and appendage disorders:
  • fragile skin
  • change in colour of the skin
  • itchy skin rash
  • an increased susceptibility to sunburn
  • flaring of acne, usually at the start of treatment
  • sweating
  • changes to the nails
  • hair loss (sometimes occurs and is usually temporary but in rare cases has persisted)
  • excessive hairiness
Symptoms associated with musculoskeletal system disorders:
  • tenderness or stiffness in your bones, joints or muscles
  • muscle or joint pain
Symptoms associated the with central nervous system:
  • headache
  • tiredness
Symptoms associated with renal and urinary disorders:
  • inflammation of the urethra
Speak to your doctor if you have any of these less serious side effects and they worry you.

Serious side effects

Serious side effectsWhat to do
Symptoms associated with skin and appendage disorders:
  • sudden red, often itchy spots, similar to the rash of measles starting on the face, hands or feet. The spots may blister or change to flat round raised, red, pale-centered marks. You may also have a fever, sore throat, headache and/ or diarrhoea.
  • painful red areas, that change to large blisters and end with peeling of layers of skin, that may occur on lips, mouth, eyes, nose and genitals. Those affected may have fever and chills, aching muscles and generally feel unwell.
Symptoms associated with the gastrointestinal system:
  • nausea
  • vomiting
  • severe upper stomach pain
  • blood in stools or severe diarrhoea
Symptoms associated with the central nervous system:
  • persistent headache
Symptoms associated with sensory disorders:
  • blurred vision or visual disturbances
  • changes in your hearing or ringing in your ears
  • thinking, seeing or hearing things that are not real
Symptoms associated with musculoskeletal system disorders:
  • unexpected muscle pain, tenderness or weakness
  • severe bruising
  • persistent pain in the lower back or buttocks
Symptoms associated with depression:
  • feeling depressed, with or without suicidal thoughts
  • feeling sad or having crying spells
  • losing interest in activities you once enjoyed
  • sleeping too much or having trouble sleeping
  • changes in your appetite or body weight
  • having trouble concentrating
  • withdrawing from your friends or family
  • feeling like you have no energy
  • feelings of worthlessness or inappropriate guilt
Call your doctor straight away or go straight to the Emergency Department at your nearest hospital if you notice any of these serious side effects.

Tell your doctor or pharmacist if you notice anything else that may be making you feel unwell.

Other side effects not listed here may occur in some people.

Reporting side effects

After you have received medical advice for any side effects you experience, you can report side effects to the Therapeutic Goods Administration online at www.tga.gov.au/reporting-problems. By reporting side effects, you can help provide more information on the safety of this medicine.

Always make sure you speak to your doctor or pharmacist before you decide to stop taking any of your medicines.

7. Product details

This medicine is only available with an authorised doctor's prescription.

What ORATANE contains

Active ingredient
(main ingredient)
isotretinoin
Other ingredients
(inactive ingredients)
Capsule Filling
  • Beeswax – yellow
  • Disodium edetate
  • Butylated Hydroxyanisole
  • dl-alpha-tocopherol
  • Soya oil – partially hydrogenated
  • Soya oil
  • Vegetable oil – hydrogenated (5mg, 10mg and 20mg only)
  • Soya oil – hydrogenated (30mg and 40mg only).
Capsule Shell
  • Sorbitol solution (70% non-crystallising)
  • Glycerol
  • Gelatin†
  • Titanium dioxide
  • Water – purified
  • Brilliant scarlet 4R CI16255 (10mg and 20mg only)
  • Sunset yellow FCF CI15985 (40mg only)
  • Indigo carmine CI73015 (20mg only)
  • Iron oxide black CI177499 (10mg only)
  • Iron oxide red (30mg only)
Potential allergensSoya oil may contain traces of arachidic acid (a component of peanut oil)
†Contains sulfites. May contain trace amounts of phenylalanine.

Do not take this medicine if you are allergic to any of these ingredients.

ORATANE is available as a 20 mg capsule in a pack of 60 capsules.

What ORATANE looks like:

ORATANE 5 mg capsules are soft, oval, faint pinkish/cream to cream in colour containing a yellow/orange liquid. Available in blister packs of 60 capsules. ARTG 127499

ORATANE 10 mg capsules are soft, oval, opaque light violet in colour containing a yellow/orange liquid. Available in blister packs of 60 capsules. ARTG 75034

ORATANE 20 mg capsules are soft, oval, opaque maroon, red in colour containing a yellow/orange liquid. Available in blister packs of 60 capsules. ARTG 69868

ORATANE 30 mg capsules are pink coloured soft gelatin capsules containing a yellow/ orange liquid. Available in blister pack of 60 capsules. ARTG 303071

ORATANE 40 mg capsules are soft, oval, opaque orange in colour containing a yellow/orange liquid. Available in blister packs of 30 capsules. ARTG 117206

Sponsor:

Arrotex Pharmaceuticals Pty Ltd
15 – 17 Chapel Street
Cremorne Victoria 3121
www.arrotex.com.au

This leaflet was prepared in November 2024

Published by MIMS January 2025

BRAND INFORMATION

Brand name

Oratane

Active ingredient

Isotretinoin

Schedule

S4

 

1 Name of Medicine

Isotretinoin.

2 Qualitative and Quantitative Composition

Oratane capsules contain either 5 mg, 10 mg, 20 mg, 30 mg, or 40 mg of isotretinoin.
Isotretinoin is related to both retinoic acid and retinol (vitamin A). Isotretinoin is a yellow orange to orange crystalline powder that is practically insoluble in water, soluble in methylene chloride, sparingly soluble in ether and slightly soluble in alcohol. It is sensitive to air, heat and light, especially in solution.

Excipients with known effect.

Contains soya bean products.
For full list of excipients, see Section 6.1 List of Excipients.

3 Pharmaceutical Form

Oratane 5 mg capsules are soft, oval, faint pinkish/cream to cream in colour containing a yellow/orange liquid.
Oratane 10 mg capsules are light violet coloured soft capsules containing a yellow/orange viscous liquid.
Oratane 20 mg capsules are maroon coloured soft capsules containing a yellow/orange viscous liquid.
Oratane 30 mg capsules are pink coloured soft capsules containing a yellow/orange viscous liquid.
Oratane 40 mg capsules are orange coloured soft capsules containing a yellow/orange viscous liquid.

4 Clinical Particulars

4.1 Therapeutic Indications

Oratane is indicated for the treatment of severe cystic acne and a single course of therapy has been shown to result in complete and prolonged remission of disease in many patients. If a second course of therapy is needed, it should not be initiated until at least eight weeks after completion of the first course, since experience has shown that patients may continue to improve while off the drug. Because of significant adverse effects associated with its use, isotretinoin should be reserved for patients with severe cystic acne who are unresponsive to conventional therapy, including systemic antibiotics.

4.2 Dose and Method of Administration

The therapeutic response to isotretinoin is dose related and varies between patients. This necessitates individual adjustment of dosage according to the response of the condition and the patient's tolerance of the drug. In most cases complete or near complete suppression of acne is achieved with a 16 week course of treatment.
All patients should initially receive doses up to 0.5 mg/kg bodyweight daily for a period of two to four weeks, when their responsiveness to the drug will usually be apparent. It should be noted that the transient exacerbation of acne is occasionally seen during this initial period. Satisfactory initial responses have been reported from 0.05 mg/kg/day. Relapse rates on the lower doses are higher (a second course may be required in about two-thirds of patients on 0.1 mg/kg/day for 16 weeks), but there is decreased incidence and severity of adverse effects at lower doses.
The daily dosage should be taken with food in the nearest number of whole capsules, either as a single dose or in two divided doses during the day, whichever is more convenient.
Doses up to 1 mg/kg/day may be used in patient's refractory to initial treatment at lower doses.
The above daily dosages of isotretinoin should be continued for 16 weeks to complete the course of treatment.
After a period of two months off therapy, and if warranted by persistent severe cystic acne, a second course of therapy may be initiated.

4.3 Contraindications

Use in pregnancy (Category X).

Australian categorisation definition of Category X: Drugs which have such a high risk of causing permanent damage to the foetus that they should not be used in pregnancy or when there is a possibility of pregnancy.
Isotretinoin is highly teratogenic and should not be used during pregnancy.
Isotretinoin must not be used by females who are pregnant or who may possibly become pregnant while undergoing treatment.
Major human foetal abnormalities related to isotretinoin administration have been reported, including hydrocephalus, microcephalus, abnormalities of the external ear (micropinna, small or absent external auditory canals), eye abnormalities (including microphthalmia), cardiovascular abnormalities (conotruncal malformations such as tetralogy of Fallot, transposition of great vessels, septal defects), facial dysmorphia, cleft palate, thymus gland abnormality, parathyroid gland abnormalities and cerebrellar malformation/ abnormalities. There is also an increased incidence of spontaneous abortion.
Women of childbearing potential should not be given isotretinoin until pregnancy is excluded. It is strongly recommended that a pregnancy test be performed within two weeks prior to isotretinoin therapy. Isotretinoin therapy should start on the second or third day of the next normal menstrual period. An effective form of contraception should be used for at least one month before and also throughout isotretinoin therapy.
It is recommended that contraception be continued for one month following discontinuation of Oratane therapy. Females should be fully counselled on the serious risk to the foetus should they become pregnant while undergoing treatment. If pregnancy does occur during treatment, the physician and patient should discuss the desirability of continuing the pregnancy.
Oratane is contraindicated in patients who are breastfeeding (see Section 4.6 Fertility, Pregnancy and Lactation, Use in lactation).
Oratane is contraindicated in patients with severely impaired liver function and in patients with chronic abnormally elevated blood lipid values.
Oratane is contraindicated in patients who have pre-existing hypervitaminosis A.
Rare cases of benign intracranial hypertension have been reported after isotretinoin and after tetracyclines. Concomitant treatment with tetracyclines is, therefore, contraindicated (see Section 4.5 Interactions with Other Medicines and Other Forms of Interactions).
Oratane is also contraindicated in people who are hypersensitive to the drug or other ingredients in Oratane capsules or to other retinoids.

4.4 Special Warnings and Precautions for Use

Women of childbearing potential should be warned that the drug causes birth defects. They should be instructed that they must not be pregnant when isotretinoin therapy is initiated, and that they should use an effective form of contraception while taking isotretinoin and for one month after isotretinoin has been stopped (see Section 4.3 Contraindications).
Because of the relationship of isotretinoin to vitamin A, patients should be advised against taking vitamin supplements containing vitamin A to avoid additive toxic effects.
Oratane contains soya oil, therefore, caution should be taken with patients allergic to peanut or soya.
Donation of blood by patients during and within one month of cessation of isotretinoin treatment to women of childbearing potential should be avoided.

Skin and subcutaneous tissue disorders.

Acute exacerbation of acne is generally seen during the initial period of treatment; but this subsides with continued treatment, usually within 7-10 days, and usually does not require dose adjustments.
Wax epilation should be avoided in patients on Oratane and for a period of 5-6 months after treatment because of the risk of epidermal stripping, scarring or dermatitis.
Aggressive chemical dermabrasion and cutaneous laser treatment should be avoided in patients on Oratane and for a period of 5-6 months after the end of treatment because of risk of hypertrophic scarring in atypical areas and more rarely hyper- or hypopigmentation in treated areas.
Exposure to intense sunlight or UV rays should be avoided. Where necessary, a sun protection product with a high protection factor of at least SPF 15 should be used.
Patients should be advised to use a skin moisturising ointment or cream and a lip balm from the start of treatment as Oratane is likely to cause dryness of the skin and lips.
There have been postmarketing reports of severe skin reactions (e.g. erythema multiforme, Stevens-Johnson syndrome and toxic epidermal necrolysis) associated with isotretinoin use. These events may be serious and result in death, life threatening events, hospitalisation or disability. Patients should be monitored closely for severe skin reactions and discontinuation of Oratane should be considered if warranted.

Benign intracranial hypertension.

Isotretinoin use has been associated with a number of cases of benign intracranial hypertension (pseudotumour cerebri), some of which involved the concomitant use of tetracyclines. Early signs and symptoms of benign intracranial hypertension include papilloedema, headache, nausea and vomiting, and visual disturbances. Patients who develop benign intracranial hypertension should discontinue Oratane immediately.

Eye disorders.

Dry eyes, corneal opacities, conjunctivitis, blepharitis, decreased night vision and keratitis usually resolve after discontinuation of therapy. Dry eyes can be helped by the application of a lubricating eye ointment or by the application of tear replacement therapy. Due to the possible occurrence of keratitis, patients with dry eyes should be monitored. Patients experiencing visual difficulties should be referred for an expert ophthalmological examination and withdrawal of isotretinoin considered. Intolerance to contact lenses may occur which may necessitate the patient to wear glasses during treatment.
Corneal opacities have occurred in patients receiving isotretinoin for acne and more frequently when higher drug dosages were used in patients with disorders of keratinisation. All Oratane patients experiencing visual difficulties should discontinue the drug and have an ophthalmological examination.

Hearing impairment.

Impaired hearing has been reported in patients taking isotretinoin. Hearing impairment can be unilateral or bilateral, and symptoms include tinnitus, impaired hearing at certain frequencies and deafness. In some cases, hearing impairment has been reported to persist after therapy has been discontinued. Anyone who experiences these symptoms should immediately seek medical advice; the drug should be ceased and the patient should undergo urgent formal audiology assessment.

Biochemical abnormalities.

Rises in alanine and aspartate aminotransferases enzymes (ALT and AST) have been reported. Liver function tests, especially AST and blood lipids, should be measured before therapy and at monthly intervals during therapy and at the end of treatment. When transaminase levels exceed the normal levels, reduction of dose or discontinuation of treatment may be necessary.
Isotretinoin causes elevation of serum triglycerides and cholesterol as well as a decrease in high density lipoprotein (HDL) which appear to be related to duration of treatment and are reversible on cessation of treatment. The degree of elevation may also be dose dependent, although this has not been conclusively established.
At doses of greater than 1 mg/kg/day, approximately one in four patients have been found to develop elevated triglycerides while taking isotretinoin. At lower doses triglyceride levels elevated above the normal range are uncommon.
Some patients have been able to reverse triglyceride elevations by weight reduction and restriction of dietary fat and alcohol while continuing to take isotretinoin. Serum lipid values usually return to normal on reduction of dose or discontinuation of treatment.
Acute pancreatitis, which is potentially fatal, sometimes associated with serum triglyceride levels > 8 g/L has been reported. Hence, Oratane should be discontinued if uncontrolled hypertriglyceridemia or symptoms of pancreatitis occur.
Serum lipid (fasting value) should be determined one month prior to therapy and again about 4 weeks of therapy and subsequently at three month intervals unless more frequent monitoring is clinically indicated.
Predisposing factors such as a family history of lipid metabolism disorders, obesity, alcohol abuse, diabetes and smoking should be assessed. In high risk patients (with diabetes, obesity, alcoholism or lipid metabolism disorder) undergoing treatment with Oratane, more frequent checks of serum values for lipids and/or blood glucose may be necessary.

Musculoskeletal and connective tissue disorders.

Sacroiliitis has been reported in patients exposed to isotretinoin. To differentiate sacroiliitis from other causes of back pain, in patients with clinical signs of sacroiliitis, further evaluation may be needed including imaging modalities such as MRI. In cases reported post-marketing, sacroiliitis improved after discontinuation of Isotretinoin and appropriate treatment.
Myalgia, arthralgia and increased serum creatine phosphokinase may occur and may be associated with reduced tolerance to vigorous exercise (see Section 4.8 Adverse Effects (Undesirable Effects)).
In clinical trials of disorders of keratinisation with a mean dose of 2.24 mg/kg/day, a high prevalence of skeletal hyperostosis was noted. Bone changes including premature epiphyseal closure and calcifications of tendons and ligaments have occurred after administration of high doses for long periods for treating disorders of keratinisation. The dose levels, duration of treatment and total cumulative dose in these patients generally far exceeded those recommended for the treatment of acne.
Minimal skeletal hyperostosis has also been observed by X-rays in prospective studies of nodular acne patients treated with a single course of therapy at recommended doses.
Isotretinoin may be associated with growth retardation in prepubertal children.
Due to the possible occurrence of these bone changes, a careful evaluation of the risk/ benefit ratio should be carried out in every patient and isotretinoin administration should be restricted to severe cases.

Psychiatric disorders.

Depression, psychotic symptoms and, rarely, suicide, suicidal ideation and attempts have been reported with isotretinoin. Particular care needs to be taken in patients with a history of depression and all patients should be monitored for signs of depression. Although no mechanism of action for these events has been established, discontinuation of Oratane may not alleviate symptoms and, therefore, further psychiatric or psychological evaluation may be necessary.

Gastrointestinal disorders.

Isotretinoin has been associated with inflammatory bowel disease (including regional ileitis) in patients without a prior history of intestinal disorders. Patients experiencing abdominal pain, rectal bleeding or severe (haemorrhagic) diarrhoea should discontinue isotretinoin immediately.

Allergic reactions.

Anaphylactic reactions have been reported rarely and only after previous topical exposure to retinoids. Allergic cutaneous reactions are reported infrequently. Serious cases of allergic vasculitis, often with purpura (bruises and red patches) of the extremities and extracutaneous involvement have been reported. Severe allergic reactions necessitate interruption of therapy and careful monitoring.

Use in hepatic impairment.

Several cases of clinical hepatitis have been noted which are considered to be possibly or probably related to isotretinoin therapy. Additionally, mild to moderate elevations of liver enzymes have been observed in approximately 15% of individuals treated during clinical trials, some of which normalised with dosage reduction or continued administration of the drug. If normalisation does not readily occur or if hepatitis is suspected during treatment with isotretinoin, the drug should be discontinued and the etiology further investigated.

Use in renal impairment.

Renal insufficiency and renal failure do not affect the pharmacokinetics of isotretinoin. Therefore, isotretinoin can be given to patients with renal insufficiency. Isotretinoin should be started at a lower dose in patients with severe renal insufficiency and afterwards dose adjusted according to tolerance.

Use in the elderly.

No data available.

Paediatric use.

The approved therapeutic indication does not involve use in children and safety in prepubertal children has not been established (also see Section 4.4 Special Warnings and Precautions for Use, Musculoskeletal and connective tissue disorders).
The use of Isotretinoin in paediatric patients less than 12 years of age is not recommended.
Isotretinoin may stop long bone growth in children who are still growing. The use of Isotretinoin for the treatment of severe cystic acne in paediatric patients aged 12 to 17 years should be given careful consideration, especially for those patients where a known metabolic or structural bone disease exists.

Effects on laboratory tests.

Elevation of lipid (triglycerides and cholesterol) levels occurs with isotretinoin therapy. These are usually mild in doses less than 1 mg/kg/day and elevations above the normal range are unusual at 0.5 mg/kg/day. At doses above 1 mg/kg/day, elevation (above normal range) occurs in 25% of patients.
These changes are seen more frequently in patients where a family history of lipid disorders, or obesity, alcohol abuse, diabetes mellitus or smoking is present. The changes are dose related and may be controlled by dietary means (including alcohol restriction) or dosage reduction (see Section 4.4 Special Warnings and Precautions for Use, Biochemical abnormalities).
Elevated ESR values occur in about 40% of patients treated with isotretinoin.
A rise in aspartate aminotransferase (AST) levels may occur, especially with higher doses of isotretinoin. Although the changes have usually been within the normal range, and may return to baseline levels despite continued treatment, significant increases have occurred in a few cases, necessitating dosage reduction or discontinuation of isotretinoin.
Certain patients receiving isotretinoin have experienced problems in the control of their blood sugar. Therefore, known or suspected diabetics should have frequent blood sugar determinations performed during isotretinoin therapy. New cases of diabetes have been diagnosed.
A small number of patients have shown proteinuria, microscopic or gross hematuria and elevated CPK.

4.5 Interactions with Other Medicines and Other Forms of Interactions

As a rule concomitant therapy is not indicated but nonirritant topical preparations may be used if required. Concurrent administration of isotretinoin with topical keratolytic or exfoliative antiacne agents should be avoided as local irritation may increase.
Concurrent treatment with vitamin A must be avoided, as symptoms of hypervitaminosis A may be intensified (see Section 4.8 Adverse Effects (Undesirable Effects)).
Cases of pseudotumour cerebri and/or papilloedema have been reported in association with the use of isotretinoin. Four out of ten of these patients had retinal haemorrhages. Symptoms appeared after 21 days to 6 months therapy with 40 to 120 mg daily. Concomitant tetracycline or minocycline was administered in 5 out of 10 cases; both of these drugs have been implicated in causing intracranial hypertension. Concomitant therapy with tetracyclines is contraindicated (see Section 4.3 Contraindications).
Since acne is an androgen dependent disease, contraceptives containing an androgen progestational substance, such as one derived from 19-nortestosterone (norsteroid), particularly in the presence of gynaecoendocrinological problems, should be avoided.
The effect of microdosed progesterone preparations may be diminished by interaction with isotretinoin. Therefore, microdosed progesterone preparations or "minipills" should not be used.

4.6 Fertility, Pregnancy and Lactation

Effects on fertility.

In the reproductive studies in rats (2, 8 or 32 mg/kg/day; 2-generation), no adverse effects were noted on gonadal function, fertility, gestation or neonatal viability, although the average weight in the high dose group was slightly reduced.
In dogs, testicular atrophy was noted after treatment with isotretinoin for approximately 30 weeks at dosages of 60 or 20 mg/kg/day. In general, there was microscopic evidence for appreciable depression of spermatogenesis, but some sperm were observed in all testes examined and in no instance were completely atrophic tubules seen. In studies in 66 human males, 30 of whom were patients with cystic acne, no significant changes were noted in the count or motility of spermatozoa in the ejaculate.
(Category X)
Australian categorisation definition of Category X: Drugs which have such a high risk of causing permanent damage to the foetus that they should not be used in pregnancy or when there is a possibility of pregnancy.
Isotretinoin is a known human teratogen and should not, under any circumstances, be administered during pregnancy (see Section 4.3 Contraindications).
Isotretinoin should only be prescribed by physicians who are experienced in the use of systemic retinoids and understand the risk of teratogenicity.
Isotretinoin is teratogenic in rats and rabbits although sensitivity differs. In the rat, doses up to 50 mg/kg/day were not teratogenic but 150 mg/kg/day was teratogenic. At lower doses in the rat perinatal and post-natal studies (5, 15, 32 mg/kg/day) increased pup mortality was noted in all treatment groups. This was attributed to a dose-related reduction in maternal food intake. Body weight development of pups was significantly impaired in high dose groups.
In the rabbit, a dose of 10 mg/kg/day caused abortions in 9 out of 13 animals and teratogenicity and embryotoxicity were observed in the remaining 4 litters.
As isotretinoin is highly lipophilic, the passage of the drug in human milk is very likely. Because of the potential for adverse effects, the use of isotretinoin is contraindicated in breastfeeding mothers.

4.7 Effects on Ability to Drive and Use Machines

Decreased night vision has occurred during isotretinoin therapy and in rare instances has persisted after discontinuation of therapy. As the onset in some patients was sudden, patients should be advised of this potential problem and warned to be cautious when driving or operating any vehicle at night.

4.8 Adverse Effects (Undesirable Effects)

Most adverse effects appear to be dose related with the more pronounced effects occurring at doses above 1 mg/kg/day. The adverse effects may recede during continued therapy and the mucocutaneous effects were reversible with dosage reduction or discontinuation of therapy. Exacerbation of the cystic acne may occur during the initial stages of therapy.
Many of the adverse effects seen in patients receiving isotretinoin are similar to those described in patients taking very high doses of vitamin A.

Postmarketing experience.

Symptoms associated with hypervitaminosis A.

The most common side effects are mucocutaneous. The most frequently reported effects are dryness of the skin, in particular peeling of the palms and soles, dryness of the mucosa, e.g. lips (cheilitis which occurs in over 90% of patients), the nasal mucosa (epistaxis is seen in up to 30% of patients), the pharynx (hoarseness) and eyes (conjunctivitis, reversible corneal opacities and intolerance to contact lenses).

Skin and appendages disorders.

Exanthema, pruritus, facial erythema/ dermatitis, sweating, pyogenic granuloma, paronychia, nail dystrophy, increased formation of granulation tissue, persistent hair thinning, reversible alopecia, acne fulminans, hirsutism, hyperpigmentation, photosensitivity, photoallergic effects, skin fragility. Acne flare occurs at the start of treatment and persists for several weeks.
During the postmarketing period, erythema multiforme, Stevens-Johnson syndrome and toxic epidermal necrolysis have been reported with isotretinoin (see Section 4.4 Special Warnings and Precautions for Use).

Musculoskeletal system disorders.

Myalgia (muscle pain) with or without elevated serum CPK values (see Section 4.4 Special Warnings and Precautions for Use), arthralgia (joint pain), tenderness or stiffness of bones, hyperostosis, arthritis, calcification of ligaments and tendons and other bone changes, reduced bone density, back pain, epiphyses, premature fusion, tendinitis.
Serious cases of rhabdomyolysis, often leading to hospitalisation and some with fatal outcome have been reported, particularly in those undertaking vigorous physical activity.
Cases of sacroiliitis have been observed in patients treated with isotretinoin (see Section 4.4 Special Warnings and Precautions for Use).

Renal and urinary disorders.

Cases of urethritis have been reported.

Psychiatric and central nervous system disorders.

Behavioural disorders, depression, suicide attempt, suicide (see Section 4.4 Special Warnings and Precautions for Use), headache, increased intracranial pressure (pseudotumour cerebri), and seizures.

Sensory disorders.

Visual disturbances, photophobia, decreased night vision, colour vision disturbances (reversible upon discontinuation), lenticular cataracts, keratitis, blurred vision, blepharitis, conjunctivitis, eye irritation, papilledema as a sign of benign intracranial hypertension, impaired hearing at certain frequencies.

Gastrointestinal system disorders.

Nausea, severe diarrhoea, inflammatory bowel disease such as colitis, ileitis and haemorrhage have been reported to occur. Patients on isotretinoin, especially those with high triglyceride levels, are at risk of developing pancreatitis. Fatal pancreatitis has been rarely reported (see Section 4.4 Special Warnings and Precautions for Use).

Liver and biliary system disorders.

Transient and reversible increases in liver transaminases, some cases of hepatitis.

Respiratory system disorders.

Bronchospasm has been rarely reported; sometimes in patients with a prehistory of asthma.

Reproductive system and breast disorders.

Sexual dysfunction including erectile dysfunction and decreased libido, gynaecomastia. A causal association with these adverse effects has not been established.

Disorders of the blood.

Decrease in white blood cell count, neutropenia, disorders of red blood cell parameters (such as decrease in red blood cell count and haematocrit), elevation of sedimentation rate increase or decrease in platelet count (thrombocytopenia) and anaemia.

Laboratory findings.

Increase in serum triglyceride and cholesterol levels, decrease in HDL, hyperuricemia. Rare cases of elevated blood glucose have been reported, and new cases of diabetes have been diagnosed (see Section 4.4 Special Warnings and Precautions for Use).

Resistance mechanism disorders.

Local or systemic infections due to Gram positive microorganisms (Staphylococcus aureus).

Miscellaneous reactions.

Decreases in haematocrit, lymphadenopathy, hematuria and proteinuria, vasculitis (for example Wegener's granulomatosis, allergic vasculitis), allergic responses, systemic hypersensitivity and glomerulonephritis.

Reporting suspected adverse effects.

Reporting suspected adverse reactions after registration of the medicinal product is important. It allows continued monitoring of the benefit-risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions at http://www.tga.gov.au/reporting-problems.

4.9 Overdose

Signs of hypervitaminosis A could appear in cases of overdose. Clinically, overdose has been associated with transient headache, vomiting, facial flushing, cheilosis, abdominal pain, headache, dizziness and ataxia. All symptoms quickly resolved without apparent residual effects.
Treatment of overdose should consist of general supportive measures.
For information on the management of overdose, contact the Poisons Information Centre on 13 11 26 (Australia).

5 Pharmacological Properties

5.1 Pharmacodynamic Properties

Mechanism of action.

Oratane contains isotretinoin; this is a retinoid that inhibits sebaceous gland function and keratinisation. The exact mechanism of action of isotretinoin is unknown.
Clinical improvement in cystic acne patients occurs in association with a reduction in sebum secretion. The decrease in sebum secretion is reversible and the extent is related to the dose and duration of treatment with Oratane and reflects a reduction in sebaceous gland size and an inhibition of sebaceous gland differentiation.

Clinical trials.

No data available.

5.2 Pharmacokinetic Properties

Absorption.

There is considerable interindividual variation in the bioavailability of oral isotretinoin. After oral administration of 80 mg isotretinoin (2 x 40 mg capsules) given in the fasting state, peak plasma concentrations ranged from 167 to 459 nanogram/mL and mean time to peak was 3.2 hours in healthy volunteers, while in acne patients peak concentrations ranged from 98 to 535 nanogram/mL (mean 262 nanogram/mL) with a mean time to peak of 2.9 hours.
The bioavailability of isotretinoin capsules taken with food is 1½ to 2 times greater than when taken in a fasting state.

Distribution.

Tissue distribution in animals.

Tissue distribution of 14C-isotretinoin in rats revealed high concentrations of radioactivity in many tissues after 15 minutes, with a maximum in 1 hour and declining to nondetectable levels by 24 hours in most tissues. After seven days, however, low levels of radioactivity were detected in the liver, ureter, adrenal, ovary and lacrimal gland.
The drug is 99.9% bound in human plasma almost exclusively to albumin.

Metabolism.

The major identified metabolite in blood and urine is 4-oxo-isotretinoin. Tretinoin and 4-oxo-tretinoin were also observed. After two 40 mg capsules of isotretinoin, maximum concentrations of the metabolite of 87 to 399 nanogram/mL occurred at 6 to 20 hours. The blood concentration of the major metabolite generally exceeded that of isotretinoin after 6 hours.
The mean ± SD minimum steady-state blood concentrations of isotretinoin were 160 ± 19 nanogram/mL in ten patients receiving 40 mg twice daily. After single and multiple doses, the mean ratio of areas under the curves of isotretinoin to 4-oxo-isotretinoin is 3 to 3.5.

Excretion.

The terminal elimination half-life of isotretinoin ranged from 10 to 20 hours in volunteers and patients. Following an 80 mg liquid suspension oral dose of 14C-isotretinoin, 14C activity in blood declined with a half-life of 90 hours. Relatively equal amounts of radioactivity were recovered in the urine and faeces with 65 to 83% of the dose recovered. The apparent half-life for elimination of the 4-oxo-metabolite ranged from 11 to 50 hours with a mean of 29 hours. This metabolite is subject to recycling in the enterohepatic circulation.

5.3 Preclinical Safety Data

Genotoxicity.

Isotretinoin was negative in tests for gene mutation (histidine reversion in S. typhimurium), chromosomal damage in vitro (Chinese hamster lung cell and S. cervisiae D7 assays) and in vivo (mouse micronucleus test), and unscheduled DNA synthesis in vitro (rat hepatocytes).

Carcinogenicity.

In Fischer 344 rats given isotretinoin at dosages of 32 or 8 mg/kg/day for greater than 18 months, there was dose related increased incidence of pheochromocytoma. The incidence of adrenal medullary hyperplasia was also increased at the higher dosage. There is doubt as to the validity of this animal model as a predictor of tumorigenicity in humans, as the Fischer rat is genetically predisposed to the multiple endocrine neoplasia syndrome which includes spontaneous occurrence of pheochromocytoma. In these studies there was also a dose related decrease in the incidence of liver adenomata, liver angiomata and leukaemia.

6 Pharmaceutical Particulars

6.1 List of Excipients

Oratane capsules contain isotretinoin, beeswax - yellow, disodium edetate, butylated hydroxyanisole, dl-alpha-tocopherol, soya oil - partially hydrogenated, soya oil, vegetable oil - hydrogenated (5 mg, 10 mg and 20 mg only), soya oil - hydrogenated (30 mg and 40 mg only).
The capsule shell contains sorbitol solution (70% non-crystallising), glycerol, gelatin, titanium dioxide, water - purified, brilliant scarlet 4R CI16255 (10 mg and 20 mg only), sunset yellow FCF CI15985 (40 mg only), indigo carmine CI73015 (20 mg only), iron oxide black CI177499 (10 mg only), iron oxide red (30 mg only).

6.2 Incompatibilities

Incompatibilities were either not assessed or not identified as part of the registration of this medicine.

6.3 Shelf Life

In Australia, information on the shelf life can be found on the public summary of the Australian Register of Therapeutic Goods (ARTG). The expiry date can be found on the packaging.

6.4 Special Precautions for Storage

Store below 30°C in the closed carton to protect from light and moisture:
Oratane 20 mg capsules AUST R 69868.
Store below 25°C in the closed carton to protect from light and moisture:
Oratane 5 mg capsules AUST R 127499;
Oratane 10 mg capsules AUST R 75034;
Oratane 30 mg capsules AUST R 303071;
Oratane 40 mg capsules AUST R 117206.

6.5 Nature and Contents of Container

Oratane 5 mg capsules are available in PVC/PVDC/Al blister packs of 15 (sample pack)*, 30*, 60 and 90* capsules.
Oratane 10 mg capsules are available in PVC/PVDC/Al blister packs of 15 (sample pack)*, 30*, 60 and 90* capsules.
Oratane 20 mg capsules are available in PVC/PVDC/Al blister packs of 15 (sample pack)*, 30*, 60 and 90* capsules.
Oratane 30 mg capsules are available in PVC/PVDC/Al blister packs of 15 (sample pack)*, 30*, 60 and 90* capsules.
Oratane 40 mg capsules are available in PVC/PVDC/Al or PVC/PCTFE/Al blister packs of 15 (sample pack)*, 30, 60* and 90* capsules.
*Currently not marketed.

6.6 Special Precautions for Disposal

In Australia, any unused medicine or waste material should be disposed of by taking to your local pharmacy.

6.7 Physicochemical Properties

Chemical structure.

Structurally it is represented as:
Isotretinoin, C20H28O2.

CAS number.

CAS 4759-48-2.

7 Medicine Schedule (Poisons Standard)

Schedule 4 - Prescription Only Medicine.

Summary Table of Changes