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Find out the active ingredient and other brand names of your medicines with the NPS Medicine Name Finder
For a medicinewise Australia
Independent. Not-for-profit. Evidence based.
Why does the same medicine have different brand names?
It’s a bit like with groceries where different companies can produce the same product and market it under different brand names. Medicines may also be sold under several different brands.
It can be confusing when you’re offered a medicine with a different name and are told that it’s actually the same as the one on your prescription or the medicine you usually take. So it’s important to be medicinewise by remembering that most medicines have two different names — an active ingredient and a brand name — and there may be more than one brand of the same medicine.
The active ingredient name is the name of the chemical in the medicine that makes it work. These active ingredient names are scientific and often quite difficult to remember and pronounce.
A company may therefore give their medicine another easier to say or memorable name under which the medicine is sold. This is the brand name.
This is the first patented brand of a medicine. When a pharmaceutical company develops a new active ingredient it is granted a patent for period of time during which no other company can manufacture and sell a medicine containing the same active ingredient. This means that for many years only one brand of medicine is available, and the original company has the opportunity to recoup their investment in researching and developing the new medicine.
Once a patent expires other companies can develop their own version of the medicine. These later versions are known as generic brands. Their active ingredient name always remains the same, but they are marketed under a different brand name.
Also, due to trade mark regulations, the packaging and sometimes the medicines themselves are made to look different from each other.
For most people there’s no difference. What matters is the active ingredient. So if you’re offered an alternative brand you can be confident that it will work the same — either way it’s your choice.
For some people with allergies or intolerances, it's important to find out more about the inactive ingredients in your medicines. There may also be other situations that influence your decision to switch brands.
On 1 May, the patent expired for Lipitor, which is a brand of atorvastatin (a prescription medicine used in the treatment of cholesterol and heart disease). Atorvastatin is the active ingredient — the chemical in Lipitor that makes it work.
The patent expiry means that other pharmaceutical companies, as well as the original manufacturer, can now make and sell other brands of medicines containing atorvastatin. The brand Lipitor is still available.
It also means you may be offered a different brand of atorvastatin the next time you go to the pharmacy with your Lipitor prescription. If this happens, it’s important to remember that if the active ingredient and dosage are the same, the medicine will work the same way in your body.
Reasonable care is taken to provide accurate information at the date of creation. This information is not intended as a substitute for medical advice from a qualified health professional. Health professionals should rely on their own expertise and enquiries when providing medical advice or treatment. Where permitted by law, NPS disclaims all liability (including for negligence) for any loss, damage or injury resulting from reliance on or use of this information. Read our full disclaimer.
References to brands should not be taken as an endorsement by NPS.