पेरैम्पेनल और रिफाब्यूटिन का इंटरैक्शन

Moderate and Strong CYP3A4 Inducers (including carbamazepine, oxcarbazepine, and phenytoin): increase clearance of perampanel and decrease perampanel plasma concentrations.

When moderate or strong CYP3A4 inducers are introduced or withdrawn, monitor patients closely.

Moderate and Strong CYP3A4 Inducers The concomitant use of known moderate and strong CYP3A4 inducers including carbamazepine, phenytoin, or oxcarbazepine with FYCOMPA decreased the plasma levels of perampanel by approximately 50-67% [see Clinical Pharmacology (12.3) ] .

The starting doses for FYCOMPA should be increased in the presence of moderate or strong CYP3A4 inducers [see Dosage and Administration (2.3) ] .

When these moderate or strong CYP3A4 inducers are introduced or withdrawn from a patient’s treatment regimen, the patient should be closely monitored for clinical response and tolerability.

Effect of Other Drugs on Rifabutin Pharmacokinetics Some drugs that inhibit CYP3A may significantly increase the plasma concentration of rifabutin.

Therefore, carefully monitor for rifabutin associated adverse events in those patients also receiving CYP3A inhibitors, which include fluconazole and clarithromycin.

In some cases, the dosage of rifabutin may need to be reduced when it is co-administered with CYP3A inhibitors.

Antiretroviral and Anti-HCV Drug Interactions Protease inhibitors act as substrates or inhibitors of CYP3A4 mediated metabolism.