Desogestrel POP mechanism — DFSRH MCQ
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Correct answer: B — Desogestrel POP inhibits ovulation more consistently than traditional POPs
Desogestrel POP suppresses ovulation more consistently than traditional POPs and has a longer missed-pill window. Traditional POPs act mainly through cervical mucus effects and have a shorter window. Age 30 is not a contraindication, and no POP protects against STIs. The pearl is that not all POPs have the same pharmacological profile.
Reference: FSRH Guideline: Progestogen-only Pills