Side effects that may occur with the use of generic Lovastatin medication include constipation or stomach pain, muscle damage (which can rarely lead to a very serious, possibly fatal, condition called rhabdomyolysis), muscle pain/tenderness/weakness (especially with fever or unusual tiredness), yellowing eyes and skin, dark urine, severe fatigue, severe stomach/abdominal pain, persistent nausea, change in the amount of urine, and allergic reaction symptoms such as rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not mentioned here after you buy Lovastatin online, contact your local doctor.