Eluxadoline and Ritonavir interaction

Eluxadoline and Ritonavir: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Ritonavir (Norvir) label · effective 2026-07-23

Major

…methylergonovine ○ GI Motility Agent: cisapride ○ HMG-CoA Reductase Inhibitors: lovastatin, simvastatin ○ Microsomal triglyceride transfer protein (MTTP) Inhibitor: lomitapide ○ Non-opioid Analgesic (selective blocker of Na v 1.8 sodium channels): suzetrigine ○ PDE5 Inhibitor: sildenafil (Revatio ® ) when used for the treatment of pulmonary arterial hypertension…

Contraindicationsby drug classView label on DailyMed
Moderate

Analgesics, Opioid: tramadol, propoxyphene, methadone, fentanyl ↑ analgesics ↓ methadone ↑ fentanyl A dose decrease may be needed for these drugs when co-administered with ritonavir.

Drug interactionsby drug classView label on DailyMed
Minor

Analgesics, Non-opioid (selective blocker of Na v 1.8 sodium channels) suzetrigine ↑ suzetrigine and active metabolite M6-SUZ Co-administration contraindicated due to potential for serious and/or life-threatening suzetrigine adverse reactions [see Contraindications ( 4 ) ] .

Drug interactionsby drug classView label on DailyMed

From the Eluxadoline (Viberzi) label · effective 2024-07-16

Moderate

Examples: cyclosporine, gemfibrozil, antiretrovirals (atazanavir, lopinavir, ritonavir, saquinavir, tipranavir), rifampin, eltrombopag Drugs that Cause Constipation Clinical Impact: Increased risk for constipation related adverse reactions and potential for constipation related serious adverse reactions Intervention: Avoid use with other drugs that may cause…

Drug interactionsby drug classView label on DailyMed

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Not 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.