Product image of Omsan (Ethinylestradiol, Levonorgestrel) supplied by GNH India

Omsan

Active Ingredient:
Ethinylestradiol, Levonorgestrel
Origin:
EU

Omsan (Ethinylestradiol, Levonorgestrel)

Ethinylestradiol, the active ingredient in Omsan, is a combined oral contraceptive presented as an oral tablet for oral use. It prevents pregnancy by providing reliable contraceptive protection for women of reproductive age.
GNH India supplies Omsan as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Aenova Ip Gmbh

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Indications & Clinical Uses

Omsan is a combined oral contraceptive that acts on the hormonal regulation of the menstrual cycle to prevent pregnancy.

  • Prevention of pregnancy: provides reliable contraceptive protection for women of reproductive age.
  • Menstrual cycle regulation: helps achieve more regular menstrual bleeding patterns when prescribed for this purpose.

How It Works

  • Ethinylestradiol and levonorgestrel work together to suppress the hypothalamic‑pituitary‑ovarian axis, preventing the mid‑cycle surge of luteinising hormone and thereby inhibiting ovulation. The estrogen component stabilises the endometrium, while the progestogen thickens cervical mucus and alters endometrial receptivity, reducing sperm penetration and implantation.

Side Effects

Common Side Effects

  • Nausea: mild stomach upset that often resolves with continued use.
  • Headache: transient tension‑type or migraine‑type headaches.
  • Breast tenderness: temporary swelling or discomfort.
  • Spotting or breakthrough bleeding: irregular light bleeding between periods.
  • Mood changes: mild irritability or emotional fluctuations.
  • Weight fluctuation: slight increase or decrease in body weight.

Serious or Rare Side Effects

  • Deep vein thrombosis: swelling, pain, or redness in a limb.
  • Pulmonary embolism: sudden shortness of breath or chest pain.
  • Stroke: sudden weakness, speech difficulty, or facial droop.
  • Liver dysfunction: jaundice, dark urine, or abdominal pain.
  • Severe allergic reaction: rash, itching, swelling, or difficulty breathing.
  • Hypertension: persistent high blood pressure readings.

Precautions & Warnings

Before starting Omsan, consider the following precautions:

  • Smoking: avoid smoking, especially if over 35 years old, due to increased cardiovascular risk.
  • Cardiovascular disease: assess history of heart disease, stroke, or clotting disorders.
  • Liver disease: evaluate hepatic function as metabolism may be impaired.
  • Migraine with aura: discuss increased stroke risk with a healthcare professional.
  • Breast cancer: avoid use if a current or past diagnosis of estrogen‑sensitive cancer.
  • Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Omsan may interact with several medicines that affect its efficacy or safety.

Major Interactions (Avoid)

  • Antiepileptic drugs (e.g., carbamazepine, phenytoin): may reduce contraceptive effectiveness.
  • Rifampicin and other strong enzyme inducers: can lower hormone levels, increasing pregnancy risk.
  • Certain HIV protease inhibitors: may increase hormone concentrations, raising side‑effect risk.

Moderate Interactions (Monitor Closely)

  • Antifungal agents (e.g., ketoconazole): may modestly increase hormone levels.
  • St. John’s wort: may slightly reduce contraceptive efficacy.
  • Antibiotics (e.g., tetracycline): generally have minimal impact but monitor for breakthrough bleeding.

Frequently Asked Questions

Omsan is a combined oral contraceptive tablet that is prescribed to prevent pregnancy in women of reproductive age. It works by inhibiting ovulation and creating conditions in the cervical mucus and uterine lining that reduce the likelihood of sperm reaching an egg and of implantation.

Ethinylestradiol (an estrogen) and levonorgestrel (a progestin) together suppress the hypothalamic‑pituitary‑ovarian axis, preventing the surge of luteinising hormone that triggers ovulation. The estrogen stabilises the endometrium, while the progestin thickens cervical mucus and alters the uterine lining, making it less receptive to sperm and implantation.

The dosing regimen for Omsan is determined by the prescribing healthcare professional. Typically, combined oral contraceptives are taken once daily at the same time for a 21‑day active phase followed by a hormone‑free interval, but the exact schedule should be confirmed with the prescriber.

Omsan is intended to prevent pregnancy and should not be used by women who are already pregnant. If pregnancy occurs, the medication must be stopped immediately. Regarding breastfeeding, combined oral contraceptives are generally considered compatible, but a healthcare provider should evaluate individual risk‑benefit factors.

To place an order, submit an enquiry on the Omsan product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements) and the necessary import documentation.

Omsan contains the same estrogen‑progestin combination (ethinylestradiol and levonorgestrel) found in many other combined oral contraceptives. Its efficacy, safety profile and side‑effect spectrum are comparable to other products in this class, with differences mainly in dosage strengths, tablet size and brand‑specific excipients.

Omsan tablets should be stored at temperatures below 25 °C, in the original container, protected from moisture and direct sunlight. Keep the medication out of reach of children and do not use if the packaging is damaged or the tablets appear discoloured.

Omsan is taken orally, usually once daily with or without food. It is important to take the tablet at the same time each day to maintain consistent hormone levels. If a dose is missed, follow the specific guidance provided by the prescribing clinician or the product leaflet.

Serious but rare risks include venous thromboembolism, pulmonary embolism, stroke, myocardial infarction, and severe liver disease. Women with a history of clotting disorders, cardiovascular disease, smoking (especially over age 35), or certain cancers should discuss these risks with their healthcare provider before starting Omsan.

Omsan is contraindicated in women who are pregnant, have known or suspected breast cancer, have active liver disease, have a history of thromboembolic events, uncontrolled hypertension, or who are smokers over the age of 35. Anyone with a known hypersensitivity to ethinylestradiol, levonorgestrel, or any tablet excipients should also avoid using it.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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