Medroxyprogesterone Acetate + St Johns Wort Interaction
Majorinteraction on record
Description
CYP3A4 inducer may decrease medroxyprogesterone acetate concentrations and reduce contraceptive efficacy. Effect varies by preparation. Avoid concomitant use or use backup contraception.
Mechanism
CYP3A4 induction (preparation dependent)
Source: NLP:medroxyprogesterone acetate