Easy-to-read medicine information about pravastatin – what it is, how to take pravastatin safely and possible side effects. Pravastatin is commonly called Pravachol or Cholvastin.
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What is pravastatin?
Pravastatin is used to lower the level of cholesterol (a type of fat) in your blood. When excess cholesterol collects in the walls of your blood vessels, it increases your chance of having a heart attack, or stroke. Lowering cholesterol reduces your risk of heart and blood vessel disease.
Pravastatin works by blocking an enzyme that produces cholesterol in your liver and in this way slows the production of cholesterol in your body.
Pravastatin belongs to a group of medicines called statins. Read more about statins — when are they used, their benefits and risks and other frequently asked questions about statins.
Dose
- The usual dose of pravastatin is 20 to 40 milligrams once a day.
- Always take pravastatin exactly as your doctor has told you. The pharmacy label on your medicine will tell you how much pravastatin to take, how often to take it, and any special instructions.
How to take pravastatin
- Take pravastatin once a day, at around the same time each day.
- You can take pravastatin with or without food.
- To reduce your cholesterol effectively, you must keep taking pravastatin every day.
- If you forget a dose, take it as soon as you remember that day. But, if it is nearly time for your next dose, just take the next dose at the right time. Do not take double the dose.
Precautions – before starting pravastatin
- Do you have liver or kidney problems?
- Do you have problems with your thyroid?
- Do you have diabetes?
- Are your trying to get pregnant, think you might be pregnant, you're already pregnant, or you're breastfeeding?
- Do you drink large amounts of alcohol?
- Have you had, or do you have, a muscle disorder?
If any of these apply, it’s important that you tell your doctor or pharmacist before you start pravastatin. Sometimes a medicine isn’t suitable for a person with certain conditions, or it can only be used with extra care, that your pharmacist will tell you about.
Precautions – when taking pravastatin
- You will need to see your doctor regularly when you first start taking pravastatin to make sure the dose is right for you. To get the full benefit of a statin, it is important to keep a healthy diet and exercise often.
- Limit drinking alcohol while you are taking pravastatin. Heavy drinking can increase your risk of serious side effects.
Possible side effects
Like all medicines, pravastatin can cause side effects, although not everyone gets them. Often side effects improve as your body gets used to the new medicine.
Muscle pain or weakness
Some people will have muscle pain or weakness when taking statins. This is rarely serious and often goes away with time. If your pain comes on shortly after you start your statin, or gets worse, see your doctor. Your doctor will check an enzyme called creatine kinase to see if the aches and pains are possibly being caused or made worse by the statins. If so:
- a lower dose or a different statin may be prescribed, or
- you may choose to continue living with the aches because of the benefits of the statin, or
- you may discuss stopping taking your statin with your doctor.
Your doctor will also want to check for a rare but serious condition called rhabdomyolisis and will check any other medicines you are taking. Rhabdomyolisis can be caused by an interaction between statins and some other medicines.
Increased risk of type 2 diabetes
There is a small chance that statins may increase your risk of getting type 2 diabetes. However, it is usually recommended that people at risk of diabetes do take statins if they are needed to help lower their cholesterol. This is because the overall benefit in health and wellbeing of taking statins and preventing a heart attack or stroke is seen to be greater than the problems from diabetes.
Other side effects
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Interactions
Pravastatin can interact with a few medications and herbal supplements, so check with your doctor or pharmacist before starting pravastatin or before starting any new medicines or supplements.
Learn more
Medsafe Consumer Information Sheets: Cholvastin®
New Zealand Formulary Patient Information: pravastatin
Heart Foundation, NZ: statins
References
- Prescribing statins to reduce cardiovascular risk BPAC, 2017
- Investigating myalgia in patients taking statins BPAC, 2014
- Statins New Zealand Formulary
- Pravastatin New Zealand Formulary