Darunavir and Ramelteon interaction
Darunavir and Ramelteon: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Darunavir (PREZISTA) label · effective 2025-08-29
…modifying agents: lomitapide, lovastatin, simvastatin Opioid Antagonist: naloxegol PDE-5 inhibitor: sildenafil when used for treatment of pulmonary arterial hypertension Sedatives/hypnotics: orally administered midazolam, triazolam Co-administration of PREZISTA/ritonavir is contraindicated with drugs that are highly dependent on CYP3A for clearance and for which…
Sedatives/hypnotics: orally administered midazolam, triazolam ↑ midazolam ↑ triazolam Co-administration is contraindicated due to potential for serious and/or life-threatening reactions such as prolonged or increased sedation or respiratory depression.
…administered midazolam with PREZISTA may cause large increases in the concentrations of these benzodiazepines. metabolized by CYP3A e.g. buspirone, diazepam, estazolam, zolpidem ↑ sedatives/hypnotics Titration is recommended when co-administering PREZISTA/ritonavir with sedatives/hypnotics metabolized by CYP3A and a lower dose of the sedatives/hypnotics should be considered…
From the Ramelteon (Rozerem) label · effective 2026-04-15
Ketoconazole (strong CYP3A4 inhibitor): Increases AUC for ramelteon; administer with caution.
Ketoconazole (strong CYP3A4 inhibitor) The AUC 0-inf and C max of ramelteon increased by approximately 84% and 36% upon coadministration of ketoconazole with ROZEREM.
ROZEREM should be administered with caution in subjects taking strong CYP3A4 inhibitors such as ketoconazole [see Clinical Pharmacology (12.5) ] .
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.