contraceptions

  • progestin subdermal implant is the most effective contraceptive method with a >99% efficacy rate.

    • Lasts 3 years

    • more effective than IUD and sterilization

    • causes mucus thickening, decreased tubal motility, suppresses ovulation

    • SE: unscheduled bleed, weight gain, headache

    • Contraindication: progesterone receptor+ breast cancer

    • After removal: fertility returns within a month

phenytoin toxicity can cause failure in contraception with OCP by enhancing the metabolism of oral contraceptive pills through the induction of hepatic enzymes.