The first offered materials of the mutual oral contraceptive tablet contained fifty microgram from ethinyloestradiol to own years manage
- comes with the lower amount away from oestrogen and you may progestogen to incorporate good cycle manage and you will energetic birth-control
- are well accepted
- provides the greatest security character
- are reasonable
- offers extra low-contraceptive professionals when the wished.
Productive programs
Although not, a connection between the pill and you may venous thromboembolism soon emerged. This is due to the aftereffect of oestrogen toward synthesis from clotting points. 13 So you can decrease which chance, and relieve oestrogenic negative effects, the brand new dose out-of ethinyloestradiol is less in order to thirty-five and 31 microgram and much more recently 20 microgram without an apparent death of birth control efficacy. 3
