I take 10g of Atorvastatin per night and have started to have cramp in both carf muscles after one year. Any suggestions?
Muscle aching is undoubtedly a common side effect of statin tablets, including atorvastatin. Some people describe cramping when they get this side effect, so your muscle cramps could be related to your statin. In many people, the aching is mild and doesn’t have much impact on life. If it’s severe, it’s important to speak to your GP about a blood test called CK, or creatine kinase.
A much rarer but more severe possible complication of statins is called rhabdomyolysis, which causes severe muscle pains and a raised CK level. It is less likely (although not impossible) that your atorvastatin tablets are responsible for your symptoms, given that you have been taking them for a year without any symptoms until now. The most reliable way to test whether your atorvastatin is to blame is to stop taking your tablets just for a few days – the cramps should settle very quickly if the statin is the cause. If this is the case, speak to your GP.
The standard recommendation for people experiencing this side effect is to consider doing a CK if symptoms are significant. If the result is normal, options include taking a lower dose of the same statin or changing to a different statin. However, you are already on the lowest standard dose of atorvastatin and most other statins would not be as effective at lowering your cholesterol at the same low dose. You need to weigh up with your doctor the risks and benefits of the treatment on the basis of your whole medical history.
Answered by Dr Sarah Jarvis.
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