Ethynodiol Diacetate

Ethynodiol diacetate is a first-generation progestin of minor estrogenic effects and little andronic activity. The level of the androgenic effect refers to the chance of unwanted side effects such as acne and hirsutism (female unwanted hair growth), which increase as the androgenic level increases.

This progestin also has medium progestational activity. The level of progestational effects refers to how successful the progestin is at preventing ovulation and lessening menstrual bleeding – the higher the better. This progestin is a mid-level ovulation inhibitor.


Birth control pills utilizing this progestin are better at preventing side effects such as acne and unwanted hair growth than others.

This progestin is more successful at preventing ovulation and at lessening menstrual bleeding than other kinds of progestin.


Birth control pills containing this progestin are associated with increased early or mid-cycle breakthrough bleeding and spotting compared to other combination pills. Look for brands with a higher dose of estrogen, which may counteract the instances of breakthrough bleeding.


Monophasic: Demulen, Zovia


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