Statins: The milligram for milligram potency of Lipitor (atorvastatin) is higher than that for simvastatin. There is some difference in the incidence of side effects but clinically these are not seen very often. Since Lipitor (atorvastatin) became generic it has become more popular. Rosuvastatin(crestor) not generic so expensive has become very popular tho' why given its cost/pill relative to the others is debatable.
Answered 5/17/2017
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Both are statins: to treat cholesterol but different chemicals. Lipitor (atorvastatin) is mg/ mg stronger than zocor.
Answered 1/5/2018
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Very similar: Atorvastatin (lipitor) is a little more potent, milligram for milligram than Simvastatin (zocor). Both have good outcome data. Both are safe. But either can cause muscle aches (in up to 10% of people) which is dependent on the dose. If muscle aches occur, a lower dose should be tried.
Answered 10/6/2015
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