18/11/2025
𝐓𝐫𝐢𝐯𝐢𝐚 𝐓𝐮𝐞𝐬𝐝𝐚𝐲! 🩸💊
Norethisterone, also known as norethindrone, is a synthetic form of the hormone progesterone. It is commonly used in birth control pills, in treating menstrual disorders such as irregular periods or heavy bleeding, and in managing conditions like endometriosis. By mimicking natural progesterone, it helps regulate the menstrual cycle, stabilize the uterine lining, and prevent unwanted bleeding. Doctors may also prescribe it to delay menstruation for medical or personal reasons.
Norethisterone works by acting on the body’s progesterone receptors which are the same receptors that respond to natural progesterone. When taken, it thickens the cervical mucus, making it harder for s***m to enter the uterus. It also thins the lining of the uterus, creating an environment less suitable for implantation. At the same time, it sends signals to the brain’s hormonal control centers to reduce the release of FSH (follicle-stimulating hormone) and LH (luteinizing hormone), hormones needed for ovulation. By lowering these hormones, norethisterone can help prevent the release of an egg and regulate menstrual bleeding patterns.
Like many hormonal medications, norethisterone may cause side effects in some individuals. Common effects include headaches, nausea, breast tenderness, mild weight gain, and changes in mood. Some may notice acne, bloating, or spotting between periods. While uncommon, more serious side effects can occur, such as blood clots, sudden leg pain, chest pain, severe headaches, or yellowing of the skin or eyes. Anyone experiencing serious symptoms should seek medical attention immediately. Taking the medication exactly as prescribed and discussing risk factors with a healthcare provider helps reduce the likelihood of complications.
References:
https://go.drugbank.com/drugs/DB00717 https://www.drugs.com/uk/norethisterone-5mg-tablets-leaflet.html https://www.pediatriconcall.com/drugs/norethindrone/1237 https://medlineplus.gov/druginfo/meds/a604034.html
Image from:
https://pubchem.ncbi.nlm.nih.gov/compound/Norethindrone =2D-Structure
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