Tab norgestirone dosage to postpone periods

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The textbooks in the library don't have a dedicated section on norethisterone for period postponement, but I can answer this from well-established clinical knowledge. Note that the drug is norethisterone (also called norethindrone) — "norgestirone" is not a recognized drug name; this appears to be a misspelling.

Norethisterone (Norethindrone) — Period Postponement

Norethisterone is a synthetic progestogen used to delay menstruation. It works by maintaining progesterone-like activity on the endometrium, preventing the progesterone withdrawal that normally triggers a period.

Standard Dosing Regimen

Parameter	Recommendation
Dose	5 mg three times daily (TDS) (i.e., 5 mg every 8 hours = 15 mg/day)
When to start	3 days before the expected period
Duration	Continue for as long as delay is needed, up to 10–14 days maximum
When period comes	Bleeding typically occurs 2–3 days after stopping

Key Points

Start 3 days before expected menstruation — starting later is less reliable.
Not a contraceptive at this dose — additional contraception is needed if pregnancy prevention is required.
Maximum recommended duration is around 10–14 days; longer use increases side effect risk.
Periods resume once the tablets are stopped.

Common Side Effects

Bloating, breast tenderness, nausea
Headache, mood changes
Spotting/breakthrough bleeding (especially if started late)
Rarely: thromboembolic events (relevant in women with clotting risk factors)

Contraindications / Cautions

Personal or family history of VTE (blood clots)
History of liver disease
Pregnancy (should be excluded first)
Undiagnosed vaginal bleeding
Hormone-sensitive cancers

Practical Notes

Available as Primolut N (norethisterone 5 mg tablets) or generic equivalents in many countries.
It is a prescription medicine in most jurisdictions — a healthcare provider should assess suitability first.
It does not affect fertility long-term once stopped.

Disclaimer: This is for informational purposes only. Always consult a doctor or pharmacist before use, especially if you have any medical conditions or take other medications.

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