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Lynestrenol is used for treating various menstrual disorders like polymenorrhea (menstruation cycles with intervals of 21 days or fewer), menorrhagia (abnormally heavy bleeding at menstruation), metrorrhagia (bleeding between menses), endometriosis (a condition resulting from the appearance of endometrial tissue outside the womb and causing pelvic pain), postponement of menstruation and for contraception.

How it works

Lynestrenol belongs to a class of drugs called contraceptives. The contraceptive effect of lynestrenol is due to suppression of ovulation (release of egg) and also formation of corpus luteum (a hormone-secreting structure that develops in an ovary after an ovum has been discharged). It increases viscosity of the cervical mucus and decreases its permeability thereby hindering the implantation of fertilized egg.

Common side effects


Expert advice

  • Avoid exposure of the skin to sunlight, as you may be at risk to develop or aggravate chloasma (dark skin discolouration seen in pregnant women).
  • You will be regularly monitored for lipid profile during lynestrenol therapy.
  • You may be at risk for developing acne and unwanted body hair (hirsutisum) while taking lynestrenol.
  • Inform your doctor if you have any circulatory disorders or history of depression as there may be increased risk of specific cardiovascular disorders with the medication.
  • Do not take if allergic to lynestrenol or any of its ingredients.
  • Do not take in undiagnosed vaginal bleeding.
  • Do not take if having active venous thromboembolic disorders or severe arterial disease.Patients with blood clotting disorder, severe liver diseases.
  • Do not take if having progestogen-dependent tumours and porphyria (a rare blood pigment disorder that affects the skin and other organs.

Content on this page was last updated on 30 September, 2016, by Dr. Varun Gupta (MD Pharmacology)