All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Zocor:
- Constipation; headache; mild stomach pain; nausea.
Seek medical attention right away if any of these SEVERE side effects occur when using Zocor:
- Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); burning, numbness, or tingling; change in the amount of urine produced; dark or red-colored urine; decreased sexual ability; depression; dizziness; fast or irregular heartbeat; fever, chills, or persistent sore throat; joint pain; loss of appetite; memory problems; muscle pain, tenderness, or weakness (with or without fever and fatigue); pale stools; red, swollen, blistered, or peeling skin; severe or persistent nausea or stomach or back pain; shortness of breath; trouble sleeping; unusual bruising or bleeding; unusual tiredness or weakness; vomiting; yellowing of the skin or eyes.
Nervous system side effects have included headache (6.5%) and cognitive impairment. Other nervous system side effects reported with HMG-CoA reductase inhibitors have included cranial nerve dysfunction, tremor, vertigo, memory loss, paresthesias, peripheral neuropathy, and peripheral nerve palsy.
Renal side effects have included myoglobinuria and acute renal failure secondary to rhabdomyolysis.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects.