SAFE — No Known Interaction
🟢 SAFE — Simvastatin and Methadone can be taken together safely.
Evidence level: STRONG
Simvastatin and Methadone are generally considered safe to use together based on current medical evidence. No adverse interactions have been reported.
No clinically significant interaction between Simvastatin and Methadone has been identified in medical literature or FDA drug labeling.
Simvastatin and Methadone do not have a documented clinically significant interaction. Continue both as prescribed. As a general rule, inform every prescriber about all medications you take, including those from other doctors.
Take Simvastatin in the evening when cholesterol synthesis peaks (exception: atorvastatin and rosuvastatin have long half-lives and can be taken any time). Methadone follows its normal prescribed schedule. Report any unexplained muscle pain.
Higher risk for: elderly, opioid-naive patients, those with sleep apnea, respiratory conditions, concurrent CNS depressants (benzodiazepines, alcohol), liver impairment, or history of substance use disorder.
Monitor for muscle and liver effects when combining Simvastatin with Methadone. Watch for: unexplained muscle pain, tenderness, or weakness (especially if accompanied by fever or fatigue), dark-colored urine, yellowing of skin or eyes, or upper abdominal pain. Some drug combinations increase statin blood levels and raise the risk of rhabdomyolysis. When to seek emergency help: Severe muscle pain with weakness, dark brown urine, fever, confusion, rapid heartbeat, or signs of kidney failure (very little or no urination). Report any new muscle symptoms to your prescriber immediately.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. Say: "I take Simvastatin and Methadone — is that OK?"
These medications are safe to take together at standard doses. Continue taking as prescribed and keep your pharmacist informed of your complete medication list.
Simvastatin and Methadone are generally considered safe to use together based on current medical evidence. No adverse interactions have been reported.
Take Simvastatin in the evening when cholesterol synthesis peaks (exception: atorvastatin and rosuvastatin have long half-lives and can be taken any time). Methadone follows its normal prescribed schedule. Report any unexplained muscle pain.
Monitor for muscle and liver effects when combining Simvastatin with Methadone. Watch for: unexplained muscle pain, tenderness, or weakness (especially if accompanied by fever or fatigue), dark-colored urine, yellowing of skin or eyes, or upper abdominal pain. Some drug combinations increase statin blood levels and raise the risk of rhabdomyolysis. When to seek emergency help: Severe muscle pain with weakness, dark brown urine, fever, confusion, rapid heartbeat, or signs of kidney failure (very little or no urination). Report any new muscle symptoms to your prescriber immediately.
These medications are safe to take together at standard doses. Continue taking as prescribed and keep your pharmacist informed of your complete medication list.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. Say: "I take Simvastatin and Methadone — is that OK?"
Or browse the full interaction database (121,000+ pairs).