Oral contraceptives, biphasic

Oral Contraceptives, Biphasic, Monophasic, Triphasic, Progestin Only (Table VI-4) [Progestin/Hormone] WARNING ... 

Estrogens and progestins (combination oral contraceptives) are used as oral contraceptives. There are three types of estrogen and progestin combination oral contraceptives monophasic, biphasic, and triphasic. The monophasic oral contraceptives provide a fixed dose of estrogen and progestin throughout the cycle The biphasic and triphasic oral contraceptives deliver hormones similar to the levels naturally produced by the body (Table 52-1). 

Oral contraceptives Estradiol + progesterone/progestogen (monophasic products on a continuous basis biphasic products... 

CONTFIACEPTIVE HORMONES. The monophasic oral contraceptive are administered on a 21-day r men, with the first tablet taken on the first Sunday after the menses begins or on the day the mense begin if the mense b n on Sunday. After the 21-day regimen, the next 7 days are skipped, then the cycle is b un ain. With the biphasic oral contraceptives, the first phase is 10 days of a smaller dos e of progestin, and the second phase is a larger amount of progestin. 

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