Consumer medicine information

APO-Ursodeoxycholic Acid Capsules

Ursodeoxycholic acid

BRAND INFORMATION

Brand name

APO-Ursodeoxycholic Acid

Active ingredient

Ursodeoxycholic acid

Schedule

S4

 

Consumer medicine information (CMI) leaflet

Please read this leaflet carefully before you start using APO-Ursodeoxycholic Acid Capsules.

SUMMARY CMI

APO-Ursodeoxycholic Acid Capsules

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 APO-Ursodeoxycholic Acid Capsules?

APO-Ursodeoxycholic Acid Capsules contains the active ingredient ursodeoxycholic acid. APO-Ursodeoxycholic Acid Capsules is used to treat chronic cholestatic liver diseases. For more information, see Section 1. Why am I using APO-Ursodeoxycholic Acid Capsules? in the full CMI.

2. What should I know before I use APO-Ursodeoxycholic Acid Capsules?

Do not use if you have ever had an allergic reaction to ursodeoxycholic acid 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 APO-Ursodeoxycholic Acid Capsules? in the full CMI.

3. What if I am taking other medicines?

Some medicines may interfere with APO-Ursodeoxycholic Acid Capsules 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 APO-Ursodeoxycholic Acid Capsules?

Take APO-Ursodeoxycholic Acid Capsules, or give to your child, as directed by your doctor or pharmacist. This may differ from the information contained in this leaflet.

More instructions can be found in Section 4. How do I use APO-Ursodeoxycholic Acid Capsules? in the full CMI.

5. What should I know while using APO-Ursodeoxycholic Acid Capsules?

Things you should do
  • Remind any doctor, dentist, or pharmacist you visit that you or your child are using APO-Ursodeoxycholic Acid Capsules.
  • If you or your child are going to have surgery, tell the surgeon or anaesthetist that you or your child are taking this medicine.
  • If you or your child are about to have any blood tests, tell your doctor that you or your child are taking this medicine.
  • If you become pregnant while taking this medicine, tell your doctor immediately.
Things you should not do
  • Do not stop taking APO-Ursodeoxycholic Acid Capsules or change the dosage without checking with your, or your child's, doctor.
  • Do not take APO-Ursodeoxycholic Acid Capsules to treat any other complaints unless your doctor tells you or your child to.
  • Do not give this medicine to anyone else, even if they have the same condition as you or your child.
Driving or using machines
  • Be careful when driving or operating machinery until you know how this medicine affects you.
Looking after your medicine
  • Keep APO-Ursodeoxycholic Acid Capsules in a cool dry place where the temperature stays below 25°C.

For more information, see Section 5. What should I know while using APO-Ursodeoxycholic Acid Capsules? in the full CMI.

6. Are there any side effects?

Ursodeoxycholic acid is generally well tolerated with few side effects. The common side effect is diarrhoea. Allergic reactions have been reported in some patients. Other adverse reactions reported include increased cholestasis, nausea, vomiting and sleep disturbance. The serious side effects include severe right-sided upper abdominal pain and severe worsening (decompensation) of liver cirrhosis. 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

APO-Ursodeoxycholic Acid Capsules

Active ingredient(s): ursodeoxycholic acid


Consumer Medicine Information (CMI)

This leaflet provides important information about using APO-Ursodeoxycholic Acid Capsules. 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 APO-Ursodeoxycholic Acid Capsules.

Where to find information in this leaflet:

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

1. Why am I using APO-Ursodeoxycholic Acid Capsules?

APO-Ursodeoxycholic Acid Capsules contains the active ingredient ursodeoxycholic acid. APO-Ursodeoxycholic Acid Capsules is a bile acid, which may have a protective effect on the liver by reducing the absorption of other potentially toxic bile salts.
APO-Ursodeoxycholic Acid Capsules is used to treat liver diseases such as primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), and cystic fibrosis (CF)-related cholestasis.
However, your doctor may prescribe this medicine for another use.
If you or your child wants more information, ask your doctor.
Ask your doctor if you or your child have any questions about why this medicine has been prescribed for you or your child.
APO-Ursodeoxycholic Acid Capsules is not addictive.

2. What should I know before I use APO-Ursodeoxycholic Acid Capsules?

Warnings

Do not use APO-Ursodeoxycholic Acid Capsules if:

  • you or your child are allergic to ursodeoxycholic acid, or any of the ingredients listed at the end of this leaflet.

Symptoms of an allergic reaction may include: cough, shortness of breath, wheezing, difficulty breathing or tightness in chest; swelling of the face, lips, tongue, throat or other parts of the body; rash, itching or hives on the skin; fainting; or hay fever-like symptoms.

If you think you are having an allergic reaction, do not take any more of the medicine and contact your doctor immediately or go to the Accident and Emergency department at the nearest hospital.

Always check the ingredients to make sure you can use this medicine.

  • you or your child has a bile duct or gall bladder that is swollen, painful or blocked.
  • the packaging is torn or shows signs of tampering.
  • the capsules look to be deteriorating in any way.
  • the expiry date (EXP) printed on the pack has passed,
  • as it may not work as well.

Check with your doctor if you or your child:

  • take any medicines for any other condition;
  • have allergies to any other medicines, foods, preservatives or dyes;
  • have kidneys that do not work properly;
  • have a gall bladder that cannot be seen on X-ray;
  • have calcified gallstones;
  • have a gall bladder which is not able to contract properly;
  • suffer from frequent cramp-like pains in the upper
  • abdomen (biliary colic);
  • plan to have surgery or an anaesthetic;
  • take or plan to take any other medicines. This includes vitamins and supplements that are available from your pharmacy, supermarket or health food shop.

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

Tell your doctor if you are pregnant or intend to become pregnant.

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

Your doctor can discuss with you the risks and benefits involved.

Use in children

This medicine should not be used in children.

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.

APO-Ursodeoxycholic Acid Capsules may increase the effect of some medicines, including:

  • medicines used to lower high levels of cholesterol in the blood, such as rosuvastatin, atorvastatin, fluvastatin, simvastatin, pitavastatin or pravastatin.

APO-Ursodeoxycholic Acid Capsules may decrease the effects / absorption of some medicines, including:

  • nitrendipine (used to treat high blood pressure) and other medicines which are metabolised in the same way.
  • medicines used to suppress the immune system, such as ciclosporin.
  • antibiotics used to prevent certain infections, such as ciprofloxacin or dapsone.

Medicines that may reduce the effect of APO-Ursodeoxycholic Acid Capsules include:

  • medicines used to lower high levels of cholesterol in the blood, such as colestyramine or colestipol;
  • an absorbent, such as charcoal;
  • medicines such as antacids containing aluminium hydroxide and/or smectite, which are used for indigestion.

Check with your doctor or pharmacist if you are not sure about what medicines, vitamins or supplements you are taking and if these affect APO-Ursodeoxycholic Acid Capsules.

4. How do I use APO-Ursodeoxycholic Acid Capsules?

How much to take

Your doctor will tell you how much of this medicine you should take. This will depend on your condition and whether you are taking any other medicines.

Do not stop taking your medicine or change your dosage without first checking with your doctor.

The dose for ursodeoxycholic acid is determined by your body weight. Your doctor should tell you how much ursodeoxycholic acid you or your child should take.

Adults - the usual dose, depending on your weight, is as follows:

For PBC and chronic cholestatic liver diseases other than CF and PSC - two to seven capsules per day.

For CF-related cholestasis - three to nine capsules per day.

For PSC - one to nine capsules per day.

Children - the usual dose depends on your child's weight and will be advised by your doctor.

Ursodeoxycholic acid should be taken in divided doses, two to three times a day.

For PBC patients - during the first 3 months of treatment, you or your child should take ursodeoxycholic acid capsules in two to three divided doses. With improvement of liver function tests, the daily dose may be taken in one single dose in the evening.

Follow the instructions provided and use APO-Ursodeoxycholic Acid Capsules until your doctor tells you to stop.

When to take APO-Ursodeoxycholic Acid Capsules

  • Take this medicine at the same time each day. Taking it at the same time each day will have the best effect and will also help you remember when to take it.
  • If you or your child needs to take a cholesterol lowering medicine or an antacid, take it at least 2 hours before or 2 hours after the dose of ursodeoxycholic acid.
  • It does not matter if you take it before, with or after food.
  • Ursodeoxycholic acid should be taken in divided doses, two to three times a day.
  • For PBC patients - during the first 3 months of treatment, you or your child should take ursodeoxycholic acid capsules in two to three divided doses. With improvement of liver function tests, the daily dose may be taken in one single dose in the evening.

How to take APO-Ursodeoxycholic Acid Capsules

Follow carefully all directions given to you by your doctor. Their instructions may be different to the information in this leaflet.

Ursodeoxycholic acid capsules should be swallowed whole with a full glass of water because the content is bitter.

Take ursodeoxycholic acid capsules regularly.

How long to take APO-Ursodeoxycholic Acid Capsules

Continue taking your medicine for as long as your doctor tells you.

Ursodeoxycholic acid helps to control you or your child's condition, but does not cure it. It is important to keep taking the medicine even if you or your child feels well.

If you are unsure whether you or your child should stop taking ursodeoxycholic acid, talk to your doctor or pharmacist.

You or your child may need to take ursodeoxycholic acid for many months for it to work.

Make sure you have enough to last over weekends and holidays.

If you forget to use APO-Ursodeoxycholic Acid Capsules

APO-Ursodeoxycholic Acid Capsules should be used regularly at the same time each day. If you miss your dose at the usual time, if it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to. Otherwise, take it as soon as you remember and then go back to taking your medicine as you would normally.

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

This may increase the chance of you experiencing side effects.

If you have trouble remembering to take your medicine, ask your pharmacist for some hints to help you remember.

If you use too much APO-Ursodeoxycholic Acid Capsules

If you think that you have used too much APO-Ursodeoxycholic Acid Capsules, 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.

Symptoms of an overdose may include diarrhoea. If you or your child suffers from diarrhoea, make sure you or your child drink enough liquids to replace the fluid and electrolyte balance.

5. What should I know while using APO-Ursodeoxycholic Acid Capsules?

Things you should do

Call your doctor straight away if you or your child:

  • are about to be started on any new medicine
  • you are pregnant or are planning to become pregnant
  • you are breastfeeding or are planning to breastfeed
  • are about to have any blood tests
  • are going to have surgery or an anaesthetic or are going into hospital.

Your doctor may occasionally do tests to make sure the medicine is working and to prevent side effects.

Go to your doctor regularly for a check-up.

Your doctor may do tests to assess you or your child's liver function.

During the first three months of taking ursodeoxycholic acid, your doctor should monitor you or your child's liver function every 4 weeks. After the first three months of taking this medicine, your doctor should monitor you or your child's liver function every 3 months.

See your doctor if you (or your child) feels that you or your child's condition is not improving or is getting worse.

Remind any doctor, dentist or pharmacist you visit that you or your child are using APO-Ursodeoxycholic Acid Capsules.

Things you should not do

  • Do not give this medicine to anyone else, even if their symptoms seem similar to yours.
  • Do not take your medicine to treat any other condition unless your doctor tells you to.
  • Do not stop taking your medicine, or change the dosage, without first checking with your doctor.

Driving or using machines

Be careful when driving or operating machinery until you know how this medicine affects you.

Drinking alcohol

Tell your doctor if you drink alcohol.

Looking after your medicine

Keep your medicine in a cool dry place where the temperature will stay below 25°C.

Keep your medicine in its original packaging until it is time to take it. If you take your medicine out of its original packaging it may not keep well.

Follow the instructions in the carton on how to take care of your medicine properly.

Store it in a cool dry place 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 window sills.

Keep it where young children cannot reach it.

A locked cupboard at least one-and-a-half metres above the ground is a good place to store medicines.

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
  • Diarrhoea
  • Itching/pruritus
  • Urticaria (nettle rash)
  • Allergic reactions
  • Nausea/vomiting
  • Sleep disturbance
  • Pain in the stomach area or in the upper right part of the belly, under the ribs.
Speak to your doctor if you or your child have any of these less serious side effects and they worry you or your child.

Serious side effects

Serious side effectsWhat to do
  • Severe right-sided upper abdominal pain.
Call your doctor straight away or go straight to the Emergency Department at your nearest hospital if you or your child notice this serious side effect (especially during the treatment of PBC).
  • Severe worsening (decompensation) of liver cirrhosis.
Stop taking ursodeoxycholic acid immediately if you notice this serious side effect (especially during treatment of PBC).

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 a doctor's prescription.

What APO-Ursodeoxycholic Acid Capsules contains

Active ingredient (main ingredient)
  • Ursodeoxycholic acid
Other ingredients (inactive ingredients)
  • Maize starch
  • Silicon dioxide
  • Magnesium stearate
  • Titanium dioxide
  • Gelatin
Potential allergensMay contain trace amounts of phenylalanine and sulfites.

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

This medicine is gluten-free, lactose-free, sucrose-free, tartrazine-free and free of other azo dyes.

What APO-Ursodeoxycholic Acid Capsules looks like

APO-Ursodeoxycholic Acid Capsules 250 mg is a white hard gelatine capsule. The content - white or almost white powder. (Aust R 276339).

APO-Ursodeoxycholic Acid Capsules are available in blister pack of 100 capsules.

Who distributes APO-Ursodeoxycholic Acid Capsules

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

This leaflet was prepared in March 2025.

Published by MIMS May 2025

BRAND INFORMATION

Brand name

APO-Ursodeoxycholic Acid

Active ingredient

Ursodeoxycholic acid

Schedule

S4

 

1 Name of Medicine

Ursodeoxycholic acid.

2 Qualitative and Quantitative Composition

Each capsule contains 250 mg of ursodeoxycholic acid, as the active ingredient.
For the full list of excipients, see Section 6.1 List of Excipients.

3 Pharmaceutical Form

White hard gelatine capsules. The content - white or almost white powder.

4 Clinical Particulars

4.1 Therapeutic Indications

Ursodeoxycholic acid is indicated in the treatment of chronic cholestatic liver diseases.

4.2 Dose and Method of Administration

APO-Ursodeoxycholic Acid capsules are intended for oral administration. For PBC patients: In the first 3 months of treatment, APO-Ursodeoxycholic Acid capsules should be taken in 2 to 3 doses over the day. With improvement of the liver function parameters, the daily dose may be taken as a single dose in the evening.
For patients under 34 kg or patients who are unable to swallow APO-Ursodeoxycholic Acid capsules, UDCA oral suspension should be used (available from other brands).
For other cholestatic liver diseases, APO-Ursodeoxycholic Acid capsules should be taken in 2 to 3 doses over the day.
The capsules should be swallowed whole with some liquid.
Care should be taken to ensure that UDCA is taken regularly.
In patients with PBC, there may, in rare cases, be an initial deterioration in symptoms, e.g. itching. If this is the case, therapy can be continued with 1 capsule of UDCA daily, and the daily dose gradually increased weekly until the recommended daily dose has been reached.
For PSC patients, dominant stenoses of the bile ducts should be dilated before and during treatment with UDCA.

Dosage.

Dosage for adults and the elderly.

For PBC and chronic cholestatic liver diseases other than CF and PSC, the dosage of 12 - 16 mg/kg body weight/day of UDCA is recommended.
For CF-related cholestasis, the recommended dose is 20 mg/kg/day of UDCA.
For PSC, the dosage of 10-15 mg/kg body weight/day of UDCA is recommended. A dosage of 20 mg/kg body weight /day has also been shown to improve histology and liver function tests in PSC patients.

Dosage for children.

Data on use in children are very limited. In the few available studies, dosages used have generally been up to 15 - 20 mg/kg/day.

4.3 Contraindications

APO-Ursodeoxycholic Acid capsules must not be used if there is hypersensitivity to the active ingredient or any of the excipients.

4.4 Special Warnings and Precautions for Use

During the first three months of therapy, it is advisable to monitor the liver parameters of AST (SGOT), ALT (SGPT), and GGT every 4 weeks, subsequently every 3 months.
Apart from allowing for identification of responders and non-responders in patients being treated for primary biliary cirrhosis, this monitoring would also enable early detection of potential hepatic deterioration, particularly in patients with advance stage primary biliary cirrhosis.
The effect of UDCA in patients with renal impairment has not been studied.
UDCA is not recommended in patients with dominant stenoses of the bile ducts unless the obstructed bile ducts are dilated (see Section 4.2 Dose and Method of Administration).
If diarrhoea occurs, the dose must be reduced and in cases of persistent diarrhoea, the therapy should be discontinued.

Treatment of patients with primary sclerosing cholangitis.

Long periods of high dose UDCA therapy (28-30 mg/kg) in patients with primary sclerosing cholangitis may be associated with a higher rate of serious adverse events.

Use in the elderly.

Please see Section 4.2 Dose and Method of Administration.

Paediatric use.

Please see Section 4.2 Dose and Method of Administration.

Effects on laboratory tests.

No data available.

4.5 Interactions with Other Medicines and Other Forms of Interactions

Some drugs, such as cholestyramine, charcoal, colestipol and certain antacids (containing aluminium hydroxide and/or smectite [aluminium oxide]) bind to UDCA in the intestine and thereby inhibit its absorption and efficacy. Should the use of a preparation containing one of these substances be necessary, it must be taken at least 2 hours before or after UDCA.
UDCA may affect the absorption of cyclosporin in transplantation and nontransplant patients. Therefore, monitoring cyclosporin plasma concentrations are recommended and cyclosporin dose adjusted if necessary.
UDCA has been reported to decrease the absorption of ciprofloxacin in a few cases.
In a clinical study in 12 healthy volunteers with the OATP1B1*1b/*1b genotype, predicting high OATP1B1 activity, it was demonstrated that concomitant use of UDCA (500 mg/day) and rosuvastatin (20 mg/day) resulted in a significant increase in the plasma levels of rosuvastatin. UDCA increased the AUC of rosuvastatin by approximately 60%, from 145.5 nanogram/mL per hour to 231.9 nanogram/mL per hour (p=0.004). Administration of UDCA for 14 days also significantly increased total bilirubin by 139 ± 39% (p=0.003), conjugated bilirubin by 127 ± 29% (p=0.005) and unconjugated bilirubin by 151 ± 52% (p=0.004). The proposed biological mechanism for this interaction is that bilirubin and rosuvastatin are both metabolites of organic anion transporting polypeptide 1B1 (OATP1B1). OATP1B1 expression is regulated by transcription factor hepatic nuclear factor (HNF) 1α. UDCA acts as an inhibitor of HNF 1α and consequently may decreased expression of OAT1B1. A dose reduction in rosuvastatin should be considered in any individuals exposed to both rosuvastatin and UDCA. The clinical relevance of this interaction with regard to other statins is unknown. However, it is biologically possible that this interaction may also occur between UDCA and other statins which are known substrates of OAT1B1, such as atorvastatin, fluvastatin, simvastatin acid, pitavastatin and pravastatin.
UDCA reduces the peak plasma concentrations (Cmax) and the area under the curve (AUC) of the calcium channel blocker, nitrendipine. On the basis of this, together with a single case report of an interaction with the substance dapsone (reduction of the therapeutic effect) and in vitro findings, it may be assumed that UDCA induces the medicinal product-metabolising enzyme cytochrome P450 3A4. Caution should therefore be exercised in cases of co-administration of medicinal products metabolised by this enzyme, and a dose adjustment may be necessary. Induction has, however, not been observed in a well-designed interaction study with budesonide which is a known cytochrome P450 3A substrate.

4.6 Fertility, Pregnancy and Lactation

Effects on fertility.

In a fertility study in Sprague-Dawley rats at oral doses up to 2700 mg/kg/day (25 times the maximum recommended human dose of 20 mg/kg/day based on body surface area/BSA), no adverse effect on male or female fertility or pregnancy outcome were observed. However, in an oral fertility study in Wistar rats, there was evidence of a reduction in female mating behaviour at doses ≥ 250 mg/kg/day (2 times the maximum recommended human dose based on BSA) and of embryolethality (resulting in a reduction in number of live foetuses) at doses ≥ 1000 mg/kg/day (9 times the maximum recommended human dose based on BSA). Human data on fertility effects following treatment with UDCA are not available.
(Category B3)
UDCA has been shown to cross the placenta in rats. Animal studies have provided evidence of a teratogenic effect of UDCA during the early phase of gestation. In studies in rats, tail malformations occurred after an oral dose of 2000 mg per kg of body weight (18 times the maximum recommended human dose based on body surface area/BSA). In one of two studies in rats, there was evidence of embryolethality, with a reduction in number of live foetuses and live births at oral doses of 2000 mg/kg/day. In studies in rabbits, embryotoxic effects from an oral dose of 100 mg per kg of body weight were found (2 times the maximum recommended human dose). No teratogenic effects were found in the study of UDCA following oral administration to mice or rabbits at doses of up to 1500 and 300 mg/kg/day, respectively (at least 5 times the maximum recommended human dose).
There are no adequate or well-controlled studies in pregnant women during the first trimester. Therefore, UDCA should not be used during the first three months of pregnancy. Women of childbearing potential should be advised to avoid becoming pregnant while receiving treatment with UDCA.
In women with Intrahepatic Cholestasis of Pregnancy (ICP) UDCA reduces pruritus when given in the second or third trimesters of pregnancy. Data are insufficient to determine the effect of UDCA on neonatal outcomes.
It is not known whether UDCA is excreted in human milk, but small amounts of UDCA or its metabolites were excreted in milk of lactating rats following oral administration of 30 mg/kg. In an oral peri-postnatal study in rats, there was a slight transient reduction in postnatal body weight gain of pups at 2000 mg/kg/day (18 times the maximum recommended human dose based on body surface area/BSA).
According to few documented cases of breast feeding women, UDCA was excreted in the breast milk of lactating mothers. The possibility of adverse reactions on the infant should be considered if UDCA is administered to a nursing mother. Alternatively, breastfeeding can be discontinued.

4.7 Effects on Ability to Drive and Use Machines

The effects of this medicine on a person's ability to drive and use machines were not assessed as part of its registration.

4.8 Adverse Effects (Undesirable Effects)

UDCA is generally well tolerated with few side effects. Diarrhoea is the main reported side effect. The incidence of diarrhoea in controlled studies was up to 3%.
Some patients may experience increased pruritus in the early weeks of treatment. In such cases a dose reduction, and thereafter a slow (weekly) increase of dose to the recommended dose, may help.
Severe right upper abdominal pain has occurred during the treatment of PBC (≤ 1 in 10,000 patients). During advanced stages of PBC, in very rare cases (≤ 1 in 10,000 patients), decompensation of hepatic cirrhosis has been observed, which partially regressed after the treatment was discontinued.
Calcification of gallstones can occur in ≤ 1 in 10,000 patients.
Allergic reactions have been reported in some patients. Urticaria can occur in ≤ 1 in 10,000 patients).
Other adverse reactions reported include increased cholestasis, nausea, vomiting and sleep disturbance.

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 and to also contact Arrotex Medical Information Enquiries/Adverse Drug Reaction Reporting on 1800 195 055.

4.9 Overdose

Symptoms.

Diarrhoea may occur in cases of overdosage. If diarrhoea occurs, the dose must be reduced and in cases of persistent diarrhoea, the therapy should be discontinued. No specific counter-measures are necessary and the consequence of diarrhoea should be treated symptomatically with restoration of fluid and electrolyte balance.
In general, other symptoms of overdosage are unlikely because the absorption of UDCA decreases with increasing dose and therefore more is excreted with the faeces.

Treatment.

Serious adverse effects are also unlikely to occur in overdosage. However, liver function should be monitored. If necessary, ion-exchange resins may be used to bind bile acids in the intestines.
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.

The mechanism of action of UDCA in liver and cholestatic disorders has not yet been explained totally. However, UDCA alters bile acid composition, resulting in increases in the concentration of UDCA and decreases in the concentrations of the more hydrophobic and potentially toxic bile acids, cholic and chenodeoxycholic acids. UDCA also has a choleretic effect, resulting in increased bile acid output and bile flow. There is some evidence for immunological effects, including a reduction of abnormal expression of HLA Class I antigens on hepatocytes and a suppression of immunoglobulin and cytokine production.

Clinical trials.

Primary biliary cirrhosis.

Primary biliary cirrhosis (PBC) is an autoimmune disease of the liver marked by the gradual destruction and eventual disappearance of the bile duct epithelial cells. The sustained loss of intralobular bile ducts causes the signs and symptoms of cholestasis, and eventually results in cirrhosis and liver failure. Eight pivotal randomised, controlled studies examined the efficacy of UDCA in the treatment of primary biliary cirrhosis (PBC). All 8 trials were of at least 2 years follow-up. Seven of the eight studies used a dosage in the range of 12 - 16 mg/kg/day; the eighth trial used a significantly lower dose of 7.7 ± 0.2 mg/kg/day. Significant improvement in some or all biochemical tests of liver function was shown in subjects given UDCA during the treatment period. Symptom improvement or improvement in histology were not consistently reported with UDCA but longer survival without liver transplantation was reported in two long term studies. One of the studies reported that the efficacy of UDCA in patients with PBC was greater in patients with less advanced disease (entry bilirubin < 2 mg/dL; histological stage I or II) compared to patients with more advanced disease.

Primary sclerosing cholangitis.

Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease characterised by inflammation, fibrosis, and destruction of the large intra- and extrahepatic bile ducts. One pivotal randomised, double-blind placebo-controlled study examines the efficacy of UDCA in the treatment of PSC in 105 patients over 2 years. The dosage used was in the range of 13 - 15 mg/kg/day. Irrespective of initial histological stage, UDCA had no effect on time to treatment failure and survival, without liver transplantation. Serum bilirubin, ALP and AST improved, but UDCA was not associated with a significant improvement in symptoms or histological score.
In three smaller randomised, double-blind, placebo-controlled studies, UDCA similarly showed significant improvement in liver biochemistry (in 2 of the studies) when compared to placebo, but did not significantly improve symptom scores. One study found significant improvement in some liver histological features in the patients treated with UDCA. These trials used UDCA doses ranging from 10 - 15 mg/kg/day.
In a small randomised, double-blind, placebo-controlled study, 20 mg/kg/day UDCA treatment in PSC patients showed improvement in liver biochemistry when compared to placebo. Histological progression was significantly reduced in the UDCA-treated group compared to the placebo-treated group.

Cystic fibrosis-related cholestasis.

Cystic fibrosis (CF) is a hereditary disease with multiorgan involvement. Clinical liver disease is rare although many patients may have biochemical evidence of cirrhosis.
One double-blind, placebo-controlled, study randomised 55 patients with CF-related cholestasis to UDCA 900 mg/day or placebo for one year. In addition, taurine supplements or placebo were randomly assigned. Efficacy was assessed by improvements in clinically relevant and nutritional parameters, and liver biochemistry. After one year, the UDCA group had significant improvement in GGT and 5'-nucleosidase but not AST or ALT. However, there was a deterioration of overall clinical condition, as measured by the Shwachman-Kulczycki score in those receiving placebo compared to the UDCA group.
In a dose comparison study, UDCA 20 mg/kg/day for 12 months resulted in a more pronounced improvement in GGT and ALT compared to UDCA 10 mg/kg/day. Improvements in AST and ALP were comparable. Although this study suggested a possible benefit with higher drug doses in resolving liver biochemistry, whether UDCA improves quality of life, histology, or survival is unknown.

5.2 Pharmacokinetic Properties

Absorption.

UDCA occurs naturally in the body. After oral administration of a single 500 mg dose of UDCA to healthy volunteers, peak plasma concentrations were 2.7 to 6.3 microgram/mL. Tmax occurs at 60 minutes and a second peak plasma concentration occurs at 180 minutes. After oral administration of 250 mg, 500 mg, 1000 mg and 2000 mg single doses, respective absorption rates were 60.3%, 47.7%, 30.7% and 20.7% based on recovery from bile within 24 hours in patients with external biliary drainage.

Distribution.

In plasma, protein binding is 96 - 98%. First pass extraction of UDCA from the portal vein by the liver ranges from 50 - 70%. UDCA is conjugated to glycine and taurine and then excreted into bile and passes to the small bowel. In the intestine, some conjugates are deconjugated and reabsorbed in the terminal ileum. Conjugates may also be dehydroxylated to lithocholic acid, part of which is absorbed, sulphated by the liver and excreted by the biliary tract. In healthy volunteers given UDCA 500 mg with 14C tracer, 30 - 44% of the dose was excreted in faeces in the first three days as UDCA (2 - 4%), lithocholic acid (37%) and 7-ketolithocholic acid (5%).

Metabolism.

The biological half-life, obtained by radioactive labelling, of orally administered UDCA is 3.5 - 5.8 days due to the effective enterohepatic circulation of UDCA in the body.

Excretion.

In patients with severe liver disease, renal excretion becomes a major route for elimination of bile acids.

5.3 Preclinical Safety Data

Genotoxicity.

UDCA was not genotoxic in the following studies: gene mutation assays (in vitro Ames test, gene mutation assay at the TK locus in mouse lymphoma L5178Y cells), assays of chromosome aberrations (analysis of chromosome aberrations in Chinese hamster bone marrow and in spermatogonia of mice, and micronucleus test in hamsters) and assay of sister chromatid exchanges in cultured human lymphocytes.

Carcinogenicity.

In two 24-month oral carcinogenicity studies in mice, UDCA at doses up to 1000 mg/kg/day was not tumourigenic. Based on body surface area (BSA), this dose represents 4 times the recommended maximum clinical dose of 20 mg/kg/day. In two 2-year oral carcinogenicity studies in rats, UDCA at doses up to 300 mg/kg/day (3 times the recommended maximum human dose based on BSA) was not tumourigenic.
In 103-week oral carcinogenicity studies of lithocholic acid, a metabolite of UDCA, doses up to 250 mg/kg/day in mice and 500 mg/kg/day in rats did not produce any tumours.

6 Pharmaceutical Particulars

6.1 List of Excipients

Each capsule contains the following inactive ingredients: maize starch, silicon dioxide, magnesium stearate. The capsule shell is composed of: titanium dioxide and gelatin.

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 25°C.

6.5 Nature and Contents of Container

APO-Ursodeoxycholic Acid capsules 250 mg (AUST R 276339).

Blister Pack (Clear PVC/Aluminium silver foil) of 100 capsules.

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

Ursodeoxycholic acid (UDCA) is a white or almost white powder. It is practically insoluble in water, readily soluble in alcohol, sparingly soluble in acetone, in chloroform and in ether. It melts at 200 - 204°C.

Chemical structure.


Chemical Name: 3α, 7β-Dihydroxy-5β-cholan-24-oic acid.
Molecular Formula: C24H40O4.
Molecular Weight: 394.6 g/mol.

CAS number.

128-13-2.

7 Medicine Schedule (Poisons Standard)

S4 - Prescription Only Medicine.

Summary Table of Changes