Most importantly, the adverse effect is related to the dose, the specific statin, and drug-drug
interaction. For example, the higher the dose, the higher the risk for myalgia. In addition, the risk of myalgia ranges from 5.1% with fluvastatin (Lescol), 10.9% with pravastatin (Pravachol), 14.9% with atorvastatin (Lipitor), and 18.2% with simvastatin (Zocor). And you have been on both atorvastatin (Lipitor) and pravastatin (Pravachol).