التداخل بين إيفافيرينز وهيدروكودون وهوماتروبين

Cytochrome P450 3A4 Interaction The concomitant use of hydrocodone bitartrate and homatropine methylbromide with all cytochrome P450 3A4 inhibitors may result in an increase in hydrocodone plasma concentrations, which could increase or prolong adverse drug effects and may cause potentially fatal respiratory depression.

In addition, discontinuation of a concomitantly used cytochrome P450 3A4 inducer may result in an increase in hydrocodone plasma concentration.

Avoid the use of hydrocodone bitartrate and homatropine methylbromide in patients taking a CYP3A4 inhibitor or inducer [see Warnings and Precautions (5.7) , Drug Interactions (7.2 , 7.3) ] .

Concomitant use with CYP3A4 inhibitors (or discontinuation of CYP3A4 inducers) can result in a fatal overdose of hydrocodone.

Avoid the use of hydrocodone bitartrate and homatropine methylbromide in patients taking CYP3A4 inhibitors or inducers.

Narcotic analgesic: Methadone ↓ methadone * Monitor for signs of methadone withdrawal and increase methadone dose if required to alleviate withdrawal symptoms. * The interaction between efavirenz and the drug was evaluated in a clinical study.