Testosterone and Lovastatin Interaction
Drug interaction information between Testosterone and Lovastatin.
Testosterone and Lovastatin have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Testosterone and Lovastatin. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
Lovastatin does not significantly lower the amount of testosterone in your blood or stop your body from making it.
What To Do
You can take these medications together without any special monitoring or dose changes.
FDA Label Information
However, clinical studies have shown that lovastatin does not reduce basal plasma cortisol concentration or impair adrenal reserve, and does not reduce basal plasma testosterone concentration. Another HMG-CoA reductase inhibitor has been shown to reduce the plasma testosterone response to HCG. In the same study, the mean testosterone response to HCG was slightly but not significantly reduced after treatment with lovastatin 40 mg daily for 16 weeks in 21 men.
Lovastatin Also Interacts With
- Darunavir major
- Nirmatrelvir/Ritonavir major
- Spironolactone moderate
- Ketoconazole moderate
- Verapamil moderate
Frequently Asked Questions
Can I take Testosterone and Lovastatin together?
This is a minor interaction. You can take these medications together without any special monitoring or dose changes.
How serious is the interaction between Testosterone and Lovastatin?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Testosterone and Lovastatin interact?
Lovastatin does not significantly lower the amount of testosterone in your blood or stop your body from making it.
Understanding the Testosterone and Lovastatin Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Testosterone belongs to the Androgen Hormone class and Lovastatin belongs to the HMG-CoA Reductase Inhibitor (Statin) class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Lovastatin does not significantly lower the amount of testosterone in your blood or stop your body from making it. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Testosterone has 2 total documented interactions on file in this dataset, and Lovastatin has 30. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: You can take these medications together without any special monitoring or dose changes. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Testosterone or Lovastatin based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.