FDA Approves New Labeling for ISENTRESS(R) (raltegravir) to Include 1…  – CNBC

Rifampin, a strong inducer of UGT1A1, reduces plasma concentrations of ISENTRESS. Therefore, the dose of ISENTRESS for adults should be increased to 800 mg twice daily during coadministration with rifampin. There are no data to guide co-administration of …