Consider concomitant medications for risk of drug–drug interactions

The pre-treatment assessment must also include an evaluation for potential drug–drug interactions between HCV DAAs and concomitant medications, including over-the-counter and alternative medicines (including traditional Chinese medicine and St John’s wort), as well as recreational drugs. The University of Liverpool’s Hepatitis Drug Interactions website. The University of Liverpool’s Hepatitis Drug Interactions website is a very useful resource and contains regularly updated information.