Interação entre Buprenorfina + naloxona e Nirmatrelvir + ritonavir
Buprenorfina + naloxona e Nirmatrelvir + ritonavir: ambas as bulas profissionais sinalizam esta combinação com a linguagem mais forte, como uma contraindicação, uma advertência em caixa preta ou uma instrução para evitá-la.
Não combine sem a orientação de um prescritor. A linguagem da bula abaixo é a mais forte que a FDA usa.
O que dizem as bulas da FDA
Da bula de Nirmatrelvir + ritonavir (Paxlovid) · em vigor desde 2026-02-19
…voclosporin • Microsomal triglyceride transfer protein inhibitor: lomitapide • Migraine medications: eletriptan, ubrogepant • Mineralocorticoid receptor antagonists: finerenone • Non-opioid analgesic (selective blocker of Na v 1.8 sodium channels): suzetrigine • Opioid antagonists: naloxegol • PDE5 inhibitor: sildenafil (Revatio ® ) when used for pulmonary arterial…
Opioid antagonists naloxegol ↑ naloxegol Co-administration contraindicated due to the potential for opioid withdrawal symptoms [see Contraindications (4) ] .
Sedative/hypnotics triazolam, oral midazolam ↑ triazolam ↑ midazolam Co-administration contraindicated due to potential for extreme sedation and respiratory depression [see Contraindications (4) ] .
Serotonin receptor 1A agonist/ serotonin receptor 2A antagonist flibanserin ↑ flibanserin Co-administration contraindicated due to potential for hypotension, syncope, and CNS depression [see Contraindications (4) ] .
Narcotic analgesics fentanyl, hydrocodone, oxycodone, meperidine ↑ fentanyl ↑ hydrocodone ↑ oxycodone ↑ meperidine Careful monitoring of therapeutic and adverse effects (including potentially fatal respiratory depression) is recommended when fentanyl, hydrocodone, oxycodone, or meperidine is concomitantly administered with PAXLOVID.
Da bula de Buprenorfina + naloxona (Buprenorphine and Naloxone) · em vigor desde 2026-06-16
Examples: Macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g. ketoconazole), protease inhibitors (e.g., ritonavir) CYP3A4 Inducers Clinical Impact: The concomitant use of buprenorphine and CYP3A4 inducers can decrease the plasma concentration of buprenorphine [see Clinical Pharmacology (12.3) ] , potentially resulting in decreased efficacy…
Other PIs with CYP3A4 inhibitory activity (atazanavir and atazanavir/ritonavir) resulted in elevated levels of buprenorphine and norbuprenorphine, and patients in one study reported increased sedation.
Intervention: Monitor patients taking buprenorphine and naloxone sublingual tablets and atazanavir with and without ritonavir, and reduce dose of buprenorphine and naloxone sublingual tablets if warranted.
Monitor patients taking buprenorphine and atazanavir with and without ritonavir, and reduce dose of buprenorphine if warranted.
Inhibitors of CYP3A4 Clinical Impact: The concomitant use of buprenorphine and CYP3A4 inhibitors can increase the plasma concentration of buprenorphine, resulting in increased or prolonged opioid effects, particularly when an inhibitor is added after a stable dose of buprenorphine and naloxone sublingual tablet is achieved.
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