Statins are a type of medication used to lower your cholesterol. It works by converting the bad cholesterol in the blood. To read more about stating and how they work read our article on Statins.
In the UK, there are three types of statins available on prescription. These are:
All medicines can cause side effects. Statins are no different, but depending on which one you are one the risk of a side effect may be more liekly. Below we will look at some of the main side effects you can experience. You should speak with your doctor for advice if you develop any bothersome side effects. Your doctor may want to lower your dose. Alternatively, they might switch you to another statin as side effects can vary.
Some common side effects from statins may include muscle cramping, feeling sick, constipation, diarrhoea, flatulence, indigestion, headache, dizziness, and difficulty sleeping.
Less common side effects may have memory problems, hair loss, vomiting, erectile dysfunction, reduced sex drive, inflammation of your pancreas (pancreatitis), pins and needles, and acne.
Some people can also develop depression, raised blood sugar levels, and lung problems. However, it is not clear how often these side effects occur and if this is a direct cause of the medication..
Statins can cause liver damage in some people. Therefore, before you start treatment with a statin, your doctor will want to carry out a blood test to check your liver is working correctly. If your doctor thinks a statin is appropriate for you, they will also test your liver function regularly to ensure no changes. As well as having these blood tests, you should also report any symptoms of liver damage to your doctor. These include yellowing your skin or eyes, dark-coloured urine, upper abdominal pain, loss of appetite, and extreme unexplained tiredness and weakness. Note that generally, it is uncommon for statins to cause liver problems.
Muscle problems are a crucial side effect to look out for when taking a statin, as they can indicate a severe medical condition called rhabdomyolysis. It is due to the breakdown of muscles and can lead to life-threatening kidney damage. For this reason, you should promptly report any unexplained muscle pain, tenderness, or weakness to your doctor. Your doctor may want to carry out a blood test for creatine kinase - an enzyme increased in your body when your muscles are damaged or inflamed.
Although muscle pain is a common complaint among people taking statins, rhabdomyolysis rarely occurs. However, it is best to get any muscle complaints checked out to err on the side of caution. Interestingly, researchers have found that there may be a ‘nocebo effect’ associated with statin use. People with negative expectations about statins are more likely to experience muscle problems because they expect to get them.
Certain medications can make you more likely to experience side effects from some statins. Examples of drugs that can cause this effect include:
These medications can increase the level of statin in your bloodstream by inhibiting enzymes in removing the medication from your body. Grapefruit can have a similar effect (however, this only applies to atorvastatin and simvastatin). If your doctor wants you to take two medications that interact with each other, they will discuss this with you.
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