التداخل بين ريفابوتين وتيكاغريلور

• Avoid use with strong CYP3A inhibitors or CYP3A inducers.

Avoid use with strong inducers of CYP3A (e.g., rifampin, phenytoin, carbamazepine and phenobarbital) [see Clinical Pharmacology (12.3) ] .

Strong CYP3A Inducers Strong CYP3A inducers substantially reduce ticagrelor exposure and so decrease the efficacy of ticagrelor.

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.