A statin (cholesterol-lowering medicine)
Pravastatin
A statin that lowers LDL ("bad") cholesterol and is notable for having fewer drug interactions than some other statins.
What is Pravastatin?
Pravastatin is a statin used to lower cholesterol, especially LDL or 'bad' cholesterol. It is prescribed to help prevent heart attacks and strokes, both in people who have already had cardiovascular problems and in those at raised risk.
Education and reference only. This is a plain-language guide to Pravastatin — it deliberately contains no doses. Doses depend on the person, the brand and the reason for treatment, and belong with your prescriber. Always check the BNF, the product labelling (SmPC) and follow medical advice.
What it is
Pravastatin is a statin used to lower cholesterol — particularly LDL ("bad") cholesterol — both to help prevent a first heart attack or stroke in people at raised cardiovascular risk (primary prevention) and to protect people who already have heart or vascular disease (secondary prevention). Its main practical distinction is that, unlike simvastatin or atorvastatin, it is not broken down by the liver's busiest drug-processing pathway, so it has notably fewer drug interactions and no grapefruit issue. This can make it a useful choice for people on several other medicines. It is a long-term tablet, sold as Lipostat in the UK and Pravachol in the US.
How it works
Pravastatin blocks an enzyme in the liver (HMG-CoA reductase) that the body uses to make cholesterol. With less cholesterol being produced, the liver pulls more LDL cholesterol out of the blood, so circulating levels fall. Lower LDL means less cholesterol is laid down in artery walls, which is how statins reduce the risk of heart attacks and strokes over time. Because pravastatin is handled by the liver differently from most statins — it largely avoids the CYP3A4 pathway that many drugs share — it interacts with far fewer other medicines.
Company & origin
Originated / developed by: Sankyo (now Daiichi Sankyo).
Pravastatin was discovered by Japan's Sankyo Co. in the early 1980s, derived from a metabolite of the earlier statin compactin. It was first marketed in the late 1980s (Japan, 1989) and approved by the US FDA in 1991, marketed in the US as Pravachol by Bristol-Myers Squibb.
What it treats
Conditions Pravastatin is used for
Practical use
How to take Pravastatin
General, dose-free guidance — always follow your prescriber's and the leaflet's specific instructions.
- Usually taken once a day, often in the evening, with or without food.
- Swallow the tablet whole with a drink of water.
- Keep taking it even when you feel well, as it protects the heart and arteries silently over time.
- Tell your doctor promptly if you develop unexplained muscle pain, tenderness or weakness.
- Avoid large amounts of alcohol, and have the blood tests your GP arranges to check cholesterol and liver function.
Weighing it up
Advantages & disadvantages of Pravastatin
Advantages
- Strong evidence for reducing the risk of heart attack and stroke.
- Generally well tolerated, with fewer drug interactions than some other statins because it is not broken down by the same liver pathway.
- Taken once daily and inexpensive as a generic medicine.
- Can be combined with lifestyle changes for greater benefit.
Disadvantages
- Some people experience muscle aches, and rarely a more serious muscle problem.
- Can occasionally raise liver enzymes, so monitoring may be needed.
- Benefits are preventive rather than something you feel, which can affect motivation to keep taking it.
- Not suitable in pregnancy or breastfeeding.
Practical use
Good to know
It is taken once a day, often in the evening, and is taken long-term — stopping it allows cholesterol and risk to drift back up. Its standout feature is a low risk of drug interactions, and grapefruit juice is not a concern with it, which is why it is sometimes chosen for people on complex medicine regimes. Like all statins, it is avoided in pregnancy, and muscle aches should be reported, although most people tolerate it well.
Who should not take it / use with caution
- People with active liver disease, or unexplained persistently raised liver blood tests.
- Women who are pregnant, planning pregnancy or breastfeeding — statins are stopped beforehand.
- Used with caution in significant kidney or muscle disease, and alongside a few specific medicines (see interactions).
Monitoring
- Cholesterol (lipid) levels to confirm response
- Liver blood tests around starting and as advised
- Reported muscle symptoms
Side effects
- Often none. The most talked-about effect is muscle aches; genuine muscle injury is uncommon but should be reported.
- Occasional headache, digestive upset, or disturbed sleep.
- Rarely, a rise in liver enzymes (checked on blood tests) or, very rarely, serious muscle breakdown — report severe, widespread or persistent muscle pain, especially with dark urine.
Key interactions
- Notably fewer interactions than simvastatin or atorvastatin, because it is not metabolised by the liver's busy CYP3A4 pathway, and grapefruit juice is not a problem.
- Care is still needed alongside ciclosporin and certain fibrate or cholesterol medicines, which can raise muscle-injury risk.
- Some medicines (such as certain bile-acid binders) are best separated from it by a few hours so they do not reduce its absorption.
Available as: Tablets (several strengths).
Answers
Pravastatin: frequently asked questions
Why was I given pravastatin instead of another statin?
A common reason is that pravastatin has fewer drug interactions than statins like simvastatin or atorvastatin, which makes it a good fit for people taking several other medicines. The choice of statin is matched to your cardiovascular risk, your other medicines and how well you tolerate it.
Can I drink grapefruit juice with pravastatin?
Yes — unlike simvastatin and atorvastatin, pravastatin is not affected by grapefruit juice, because it does not rely on the liver pathway that grapefruit interferes with. This is one reason it is sometimes chosen.
When should I take pravastatin?
It is usually taken once a day, often in the evening, at a consistent time you will remember. It is a long-term medicine, so the benefit — a lower risk of heart attack and stroke — continues only while you keep taking it.
It is giving me muscle aches — should I stop?
Tell your prescriber rather than just stopping. Muscle aches are common and often not actually caused by the statin; this can be tested by pausing and re-challenging or trying an alternative. Severe or widespread muscle pain, especially with dark urine, needs prompt review.
What is the difference between pravastatin and Lipostat or Pravachol?
They are the same medicine — pravastatin is the generic (active-ingredient) name, Lipostat is a UK brand name and Pravachol is a US brand name. Generic pravastatin contains the identical active ingredient.
The wider class
About Statins
Pravastatin belongs to the statins class. For how the class as a whole works, its shared safety principles and monitoring, see the full guide.
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Authoritative sources
- BNF: Pravastatin sodium.
- electronic Medicines Compendium (SmPC): Pravastatin.
- NICE CKS: Pravastatin.
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