Triphasic oral contraceptive

Details Triphasic oral contraceptive Triphasic oral contraceptive

1985-06-13

1986-10-07

Roberts, Elbert L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

A01N 4500, A61K 3156

Patent

active

046160060

ABSTRACT:
A method of contraception in which an estrogen and a progestogen are administered daily in a three phase sequence for 21 days is disclosed. In the first phase a combination of an estrogen and a progestogen in a low but contraceptively effective daily dosage corresponding in estrogenic activity to 0.02-0.05 mg of 17.alpha.-ethinylestradiol and in progestogenic activity to 0.065-0.75 mg of norethindrone is administered for 5-8 days; followed by the administering of the same dosage of estrogen and a progestogen corresponding in progestogenic activity to 0.25-1.0 mg of norethindrone for 7-11 days; followed by the administering of the same dosage of estrogen and a progestogen corresponding in progestogenic activity to 0.35-2.0 mg of norethindrone for 3-7 days; followed by 6-8 days without administering either an estrogen or a progestogen.

REFERENCES:
patent: 4530839 (1985-07-01), Pasquale
patent: 4544554 (1985-10-01), Pasquale

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