Sign Up for a ChaCha Account. Sign up for ChaCha and you'll be able to easily get answers from thousands of ChaCha Guides on the Web and on your mobile phone, see your answer history, and stay up to date with the latest updates from ChaCha.
Common simvastatin side effects may include: 1  headache; 2  constipation, nausea, stomach pain; or. 3  cold symptoms such as stuffy nose, sneezing, sore throat.
In addition, although it is recommended to take the medication at bedtime, many patients may find in troublesome - all because of old (but not good) simvastatin side effects that affect sleep, such as night sweats or general sleep problems.