Interaksi Buprenorfin dan nalokson dan Nevirapin

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…

After stopping a CYP3A4 inducer, as the effects of the inducer decline, the buprenorphine plasma concentration will increase [see Clinical Pharmacology (12.3) ] , which could increase or prolong both therapeutic effects and adverse reactions and may cause serious respiratory depression.

If a CYP3A4 inducer is discontinued, consider buprenorphine and naloxone sublingual tablet dosage reduction and monitor for signs of respiratory depression.

Antiretrovirals: Patients who are on chronic buprenorphine treatment should have their dose monitored if NNRTIs are added to their treatment regimen.

Examples: Rifampin, carbamazepine, phenytoin Antiretrovirals: Non-nucleoside reverse transcriptase inhibitors (NNRTIs) Clinical Impact: Non-nucleoside reverse transcriptase inhibitors (NNRTIs) are metabolized principally by CYP3A4.

Other Agents Analgesics: Methadone ↓ Methadone Methadone levels were decreased; increased dosages may be required to prevent symptoms of opiate withdrawal.

Opiate Agonists: Fentanyl Plasma concentrations may be decreased.