Some side effects with gemfibrozil, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include but are not limited to:
Unexplained muscle pain, tenderness, or weakness, especially if you have a fever or feel ill
Severe stomach pain with nausea or vomiting
Cough or hoarseness
Passing brown or dark-colored urine
Pain or difficulty passing urine
Yellowing of the skin or eyes
Feeling more tired than usual
Unexplained bleeding
Bleeding that takes longer to stop
Unexplained rash or itching.
Rare Side Effects of Gemfibrozil
During clinical trials, some side effects occurred in less than 2 percent of people taking gemfibrozil. Therefore, it is difficult to tell whether these side effects were due to the medication or something else.
These rare gemfibrozil side effects include but are not limited to: