New Comedications Added to the PrEP Drug Interaction Checker in October 2026

One new comedication added this month to the PrEP Drug Interaction Checker: cyproterone acetate (2 mg or less) - Medicines for Contraception. Cyproterone is sometimes given at a lower dose with ethinylestradiol as a treatment for acne in women, which also acts as a contraceptive. The higher dose (now called cyproterone acetate 50 mg or more) is used for prostate cancer.