Regestrone 5: price, uses & cheaper substitutes

Start 3 days before your period is due, usually one tablet two or three times a day as your doctor prescribes, and continue for as long as you need to postpone it (generally not more than 2 weeks). Your period usually starts 2 to 3 days after the last tablet. Ask a doctor before using it this way, especially if you have had clots or migraines.

Usually within 2 to 3 days of the last tablet, sometimes up to a week. If it has not come within 7 days, do a pregnancy test and see your doctor.

No. At the 5 mg dose used to delay periods or control bleeding, norethisterone does not reliably prevent pregnancy. Use condoms or another method if you need contraception.

No. Rule out pregnancy with a urine test first if your period is late or you have had unprotected sex. Progestogens like norethisterone should not be used to "bring on" a period without checking for pregnancy.