Hormonal Contraceptives
Hormonal Contraceptives. Synthetic estrogen (usually ethinyl estradiol) + progestin suppress GnRH → LH/FSH → prevent ovulation. Progestin also thickens cervical mucus…
Synthetic estrogen (usually ethinyl estradiol) + progestin suppress GnRH → LH/FSH → prevent ovulation. Progestin also thickens cervical mucus + thins endometrium. Progestin-only pills rely primarily on cervical mucus effect. Generation 3-4 progestins (desogestrel, drospirenone) have different androgenic + VTE profiles vs older agents.
PK REMOVED. THE RECORD DESCRIBES NO MIXTURE AND ITS COMPONENTS ALREADY EXIST SEPARATELY. Its citation is an ETHINYLOESTRADIOL-ONLY study; the stored bioavailability is one minus that paper "an about 60% first-pass effect in women", i.e. that oestrogen availability, COMPUTED, on a combination record — and this catalog own ethinyl-estradiol record already stores the verbatim figure from a better source. The stored half-life is refuted by the same citation, which says "the terminal half-life ... was calculated to be about 1 day". A combined pill oestrogen and progestin have different kinetics and cannot share one parameter set, and both components are separate, better-sourced records here. THE VOLUME IS WORSE THAN THE TRANSPLANT I SUSPECTED: it is not the progestin figure but a HOUSE FILLER shared by five unrelated compounds. Structurally the record declares five routes with a COMPLETELY EMPTY dose block and has no molecular mass, which a mixture cannot have. An earlier authoring wave already skipped this record for "no clean human oral PK" and was right to.
Related compounds
- St. John's Wort — major
- Modafinil — major
Sources: PMID:23375353, PMID:13129991, PMID:455989