Yes, you can safely take rosuvastatin with modafinil
There is no clinically significant drug-drug interaction between modafinil and rosuvastatin, and these medications can be taken together without dose adjustments or special precautions.
Why This Combination is Safe
Rosuvastatin's Favorable Metabolic Profile
Rosuvastatin has distinct pharmacokinetic properties that minimize drug interactions:
- Minimal CYP450 metabolism: Rosuvastatin undergoes only about 10% metabolism via CYP2C9, with negligible involvement of CYP3A4 1
- Not a CYP3A4 substrate: This is the key reason rosuvastatin avoids interactions with many drugs that affect this enzyme system
- High hydrophilicity and hepatoselectivity: These properties further reduce systemic drug interaction potential 2
Modafinil's Mechanism Doesn't Affect Rosuvastatin
While modafinil does interact with CYP450 enzymes (it can both induce and inhibit various isoenzymes) 3, this is not clinically relevant for rosuvastatin because:
- Rosuvastatin is not metabolized by the CYP450 pathways that modafinil affects
- The primary elimination of rosuvastatin occurs through hepatic uptake transporters (OATP1B1) and direct biliary excretion, pathways unaffected by modafinil
Supporting Evidence from Guidelines
The American Heart Association's comprehensive 2016 guidelines on statin drug interactions specifically identify rosuvastatin as a non-CYP3A4-metabolized statin that can be safely combined with various medications 1. When CYP-mediated interactions are a concern, rosuvastatin is explicitly recommended as a preferred alternative 1.
Clinical Considerations
Monitor for general statin side effects (not interaction-related):
- Muscle pain or weakness
- Unexplained fatigue
- Dark urine
Be aware of modafinil's general warnings 3:
- Serious rash (rare but potentially life-threatening)
- Effects on other medications you may be taking
- Blood pressure monitoring may be needed
Bottom Line
Unlike statins metabolized by CYP3A4 (simvastatin, lovastatin, atorvastatin), rosuvastatin's unique metabolic pathway makes it one of the safest statins to combine with other medications, including modafinil. No dose adjustment is needed for either medication when used together.