Product image of Ivolen (Levonorgestrel) supplied by GNH India

Ivolen

Active Ingredient:
Levonorgestrel
Origin:
EU

Ivolen (Levonorgestrel)

Levonorgestrel, the active ingredient in Ivolen, is a progestogen presented as an oral tablet for oral use. It is used to prevent pregnancy, including emergency contraception after unprotected intercourse.

GNH India supplies Ivolen as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Cuidafarma, Lda.

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Indications & Clinical Uses

Levonorgestrel acts as a progestogenic agent within the contraceptive pathway, preventing ovulation and fertilisation.

  • Emergency contraception: provides post‑coital protection to reduce the risk of pregnancy.
  • Pregnancy prevention (progestin‑only pill): used on a regular schedule to inhibit ovulation and maintain contraceptive effect.
  • Menstrual cycle regulation: may be prescribed to adjust timing of menstrual bleeding in certain clinical protocols.

How It Works

  • Levonorgestrel binds to progesterone receptors in the hypothalamic‑pituitary‑ovarian axis, suppressing the luteinising hormone surge and thereby preventing ovulation. It also thickens cervical mucus, impairs tubal motility, and alters the endometrial lining, creating an environment that is hostile to fertilisation and implantation.

Side Effects

Levonorgestrel may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

  • Nausea: mild to moderate stomach upset.
  • Headache: occasional tension‑type headache.
  • Breast tenderness: temporary discomfort.
  • Menstrual changes: spotting or altered flow.
  • Abdominal pain: cramping or discomfort.
  • Fatigue: feeling unusually tired.

Serious or Rare Side Effects

  • Allergic reaction: rash, itching, swelling, or anaphylaxis.
  • Severe abdominal pain: may indicate ectopic pregnancy.
  • Blood clotting disorders: rare thromboembolic events.
  • Liver dysfunction: jaundice or abnormal liver enzymes.
  • Mood disturbances: severe depression or anxiety.
  • Vision changes: blurred vision or visual disturbances.

Precautions & Warnings

Levonorgestrel should be used with awareness of specific safety considerations.

  • Pregnancy contraindication: do not use if already pregnant.
  • Liver disease: avoid or use with caution in hepatic impairment.
  • Hypersensitivity: discontinue if allergic reactions occur.
  • Breastfeeding: assess risk‑benefit before use.
  • Drug interactions: review concomitant medications that may reduce efficacy.
  • Store at ambient temperature: keep below 25 °C, retain original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Levonorgestrel may interact with other medicines, affecting its contraceptive reliability.

Major Interactions (Avoid)

  • Enzyme inducers (rifampicin, phenytoin, carbamazepine, St. John's wort): may markedly reduce plasma levels.
  • Antifungal agents (ketoconazole, itraconazole): can increase hormone concentrations.

Moderate Interactions (Monitor Closely)

  • Anticoagulants (warfarin): may alter clotting parameters.
  • Antidepressants (SSRIs, especially sertraline): potential reduction in contraceptive effect.
  • Hormonal therapies (other progestins or estrogen): may require dose adjustments.
  • Antiepileptics (phenobarbital): may modestly decrease efficacy.

Frequently Asked Questions

Ivolen contains levonorgestrel, a progestogen used primarily for emergency contraception after unprotected sex and for regular pregnancy prevention as a progestin‑only oral tablet. It works by inhibiting ovulation and creating conditions that reduce the chance of fertilisation and implantation.

Levonorgestrel binds to progesterone receptors, suppressing the luteinising hormone surge that triggers ovulation. It also thickens cervical mucus, slows tubal motility, and alters the endometrial lining, making it less suitable for implantation of a fertilised egg.

The specific dose and regimen of Ivolen are determined by the prescribing healthcare professional based on the indication and patient characteristics. Patients should follow the prescriber’s instructions and not alter the dose on their own.

Ivolen is not intended for use during an established pregnancy and should be avoided if pregnancy is confirmed. For breastfeeding mothers, the benefits and risks should be evaluated by a healthcare provider, as levonorgestrel is excreted in small amounts in breast milk.

To place an order, submit an enquiry on the 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 and any necessary import documentation.

Ivolen (levonorgestrel) is a single‑dose oral progestogen that is widely used for emergency contraception. Compared with combined estrogen‑progestin pills, levonorgestrel has a simpler dosing schedule and fewer estrogen‑related side effects, but its efficacy may be reduced by enzyme‑inducing drugs.

Ivolen should be stored at ambient temperature, preferably below 25 °C. Keep the tablets in the original blister pack, protect them from moisture and direct sunlight, and ensure the container is tightly closed to maintain stability.

Ivolen is taken orally, usually as a single tablet taken as soon as possible after unprotected intercourse for emergency use, or as directed by a healthcare professional for regular contraceptive schedules. Swallow the tablet whole with water; do not crush or chew.

Serious risks, though rare, include severe allergic reactions (anaphylaxis), ectopic pregnancy, thromboembolic events, and significant liver dysfunction. Patients should seek immediate medical attention if they experience symptoms such as severe abdominal pain, rash, swelling, difficulty breathing, or jaundice.

Ivolen should not be used by individuals who are pregnant, have a known hypersensitivity to levonorgestrel or any tablet excipients, have active liver disease, or have a history of thromboembolic disorders unless advised by a physician. Consultation with a healthcare provider is essential before starting therapy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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