Norethisterone 5 mg Suppliers & Bulk Manufacturers

Available Forms: Tablets

Available Strengths: 5 mg

Reference Brands:

Category: Women's Health

Norethisterone is used to treat various menstrual problems including painful or irregular periods, premenstrual tension (PMT) and a condition called endometriosis. It is a man-made version of the natural female sex hormone progesterone.

Product Description:

Norethisterone is a synthetic progestogen derived from testosterone, which gives it a slight androgenic character alongside strong progestogenic activity. It acts on the endometrium as progesterone does, converting proliferative endometrium to a secretory state and then stabilising it. Withdrawing the drug triggers a bleed; continuing it postpones one. Most of its clinical uses follow directly from that single property.

At 5 mg it is used for heavy or painful menstrual bleeding, irregular cycles, endometriosis, and to postpone a period for travel, examinations or surgery. In endometriosis, continuous use suppresses the cyclical stimulation that drives the disease. Nausea, breast tenderness, mood change, headache and breakthrough bleeding are common. It carries the progestogen class caution on venous thromboembolism, which matters when it is used for period delay by otherwise healthy women with other risk factors.

Sourcing notes. Long off patent, inexpensive and widely multi-source, with steady prescription demand in gynaecology. The 5 mg tablet is the therapeutic strength; much lower strengths are used in contraception and hormone replacement and are entirely different products — specify which is required. Room temperature, protect from light.

Also known as: noretisterona (Portuguese), noréthistérone (French).