Prednisolone and Darunavir Interaction
Drug interaction information between Prednisolone and Darunavir.
Prednisolone and Darunavir have a documented moderate interaction in FDA labeling.
FDA drug labeling documents a moderate-severity interaction between Prednisolone and Darunavir. 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
Darunavir has a smaller effect on prednisolone than on other steroids, so the levels do not rise as much. This makes it a safer choice when a steroid is needed.
What To Do
This combination is often preferred over other steroids, but your doctor should still check for any side effects during treatment.
FDA Label Information
betamethasone budesonide ciclesonide fluticasone methylprednisolone mometasone triamcinolone ↑ corticosteroids Co-administration with corticosteroids (all routes of administration) of which exposures are significantly increased by strong CYP3A inhibitors can increase the risk for Cushing's syndrome and adrenal suppression. Alternative corticosteroids including beclomethasone, prednisone and prednisolone (for which PK and/or PD are less affected by strong CYP3A inhibitors relative to other steroids) should be considered, particularly for long term use.
Prednisolone Also Interacts With
- Theophylline major
- Nirmatrelvir/Ritonavir moderate
- Carbamazepine minor
- Estradiol minor
- Ethinyl Estradiol/Etonogestrel minor
Darunavir Also Interacts With
- Lovastatin major
- Sildenafil major
- Lurasidone major
- Pimozide major
- Midazolam major
Frequently Asked Questions
Can I take Prednisolone and Darunavir together?
This is a moderate interaction. This combination is often preferred over other steroids, but your doctor should still check for any side effects during treatment.
How serious is the interaction between Prednisolone and Darunavir?
This interaction is classified as "moderate" severity by the FDA. Moderate interactions may worsen your condition or change how your medications work.
Why do Prednisolone and Darunavir interact?
Darunavir has a smaller effect on prednisolone than on other steroids, so the levels do not rise as much. This makes it a safer choice when a steroid is needed.
Understanding the Prednisolone and Darunavir Interaction
FDA-approved prescribing information for these two drugs flags their combination as a moderate-severity interaction. Prednisolone belongs to the Corticosteroid class and Darunavir belongs to the HIV Protease Inhibitor class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Darunavir has a smaller effect on prednisolone than on other steroids, so the levels do not rise as much. 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. Prednisolone has 14 total documented interactions on file in this dataset, and Darunavir has 101. 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: This combination is often preferred over other steroids, but your doctor should still check for any side effects during treatment. 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 Prednisolone or Darunavir 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.