Very Effective methods
Method |
PPY* |
Features |
Estrogen / progestin
oral contraceptive pill |
8 |
Daily compliance required. More effective with consistent and correct
use. |
Estrogen / progestin vaginal ring |
8 |
Worn in vagina for 3-4 weeks. If withdrawal bleed desired, remove for
1 week each month. Can remove and immediately replace after
intercourse or leave in place. |
Estrogen / progestin patch (e.g. Ortho Evra) |
8 |
Replace patch weekly. Less effective for women who weigh > 200 lbs.
Higher systemic estrogen exposure than with ring or low dose
oral contraceptive pills. |
Progestin oral contraceptive pill |
8 |
Higher effectiveness when pill taken within 3 hours of the same time
each day. |
*PPY
= pregnancies per year that occur among 100 women with typical
use of the method.
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