Peroralna kontracepcija: razlika med redakcijama

brez povzetka urejanja
 
==Mehanizem delovanja==
Tabletke delujejo na več načinov. Preprečujejo [[ovulacija|ovulacijo]], povzročijo tudi, da je verjetnost [[maternica]] da se embrio vgnezdi v maternico, manjša. Pride tudi do spremembe cervikalne sluzi, tako da spermiji težje dosežejo jajčece.
The Pill works by preventing [[ovulation]], as well as making the [[uterus]] less likely to accept implantation of an embryo if one is created, and thickens the mucus in the [[cervix]] making it more difficult for sperm to reach any egg.
 
Several different types of 'the Pill' exist. Generally, they all have revolved around different synthetic estrogens and progestins, chemical analogues of the natural [[hormone]]s [[estradiol]] (an [[estrogen]]) and [[progesterone]] (a [[progestagen]]). Most common brands use 20 to 40 micrograms of [[ethinyl estradiol]] as the estrogen component and either a fixed or varying (the bi- and triphasic pills) amount of either [[levonorgestrel]] or [[norethindrone]] as the progestagen component.
40

urejanj