Once-daily tenofovir alafenamide appears sufficient when dosed with rifampicin

Plasma concentrations of tenofovir alafenamide AUC were decreased by 55% and intracellular tenofovir-diphosphate concentrations by 36% when given with rifampicin. But intracellular concentrations were still 76% higher than those with standard dose tenofovir disoproxil fumarate.