I think this post was referring to the medication Pravachol, which contains the active ingredient Pravastatin and is used to help lower cholesterol.
The statin medications can cause some problematic side effects in some people that may include nausea, headache and joint/muscle aches. Many times they are severe enough that someone has to discontinue taking them, so be on the lookout for such issues.
Are there any other questions I can help with?
You can learn more Pravastatin details here.