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Last Updated: March 19, 2024

Details for Patent: 4,544,554


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Summary for Patent: 4,544,554
Title: Triphasic oral contraceptive
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.
Inventor(s): Pasquale; Samuel A. (Basking Ridge, NJ)
Assignee: Ortho Pharmaceutical Corporation (Raritan, NJ)
Application Number:06/607,038
Patent Claim Types:
see list of patent claims
Use; Delivery;

Drugs Protected by US Patent 4,544,554

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 4,544,554

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 1226221 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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