Your Medication Rosuvastatin Rosuvastatin is also known as the brand names: Crestor Rosuvastatin comes in 5, 10, 20, 40 mg tablets. Rosuvastatin is most commonly used for lowering cholesterol and preventing heart disease. No matter what your doctor has you taking it for, rosuvastatin is usually taken by mouth once daily with or without food at any time of the day. Be sure to swallow the tablet whole. Standard dosing of rosuvastatin ranges from 5 mg to 40 mg daily A common side effect with rosuvastatin is unexplained muscle pain. Some less common side effects with rosuvastatin include headache, dizziness, diabetes, nausea, and constipation. Do not take rosuvastatin if: you are or may become pregnant While taking rosuvastatin, remember it is important to tell your doctor or pharmacist if you: • Have signs of an allergic reaction, such as rash, itching, swelling, or tightness of the chest • Are breastfeeding • Have liver problems • Have unexplained muscle pain