I initially had an LDL of 152 and was prescribed Atorvastatin which gave me dizziness. So I switched to Pravachol with no side effects. But I needed to increase my dosage to get under 100 LDL and Pravachol is limited to 80mg. So I switched again to 10mg of Rosuvastatin which took me from 114 down to 83 also without side effects.