Product image of Orimelan (Melatonin) supplied by GNH India

Orimelan

Active Ingredient:
Melatonin
Origin:
EU

Orimelan (Melatonin)

Melatonin, the active ingredient in Orimelan, is a hormone presented as an oral formulation for oral use. It plays a key role in synchronising circadian rhythms and is employed to promote the onset of sleep and improve sleep quality in individuals experiencing difficulty falling asleep or maintaining sleep, especially during periods of jet lag, shift work, or age‑related changes.

GNH India supplies Orimelan as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with a focus on quality assurance, regulatory compliance and reliable global distribution across EU and other regulated markets.

Manufacturer / TM Owner

Orion Corporation

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Indications & Clinical Uses

  • Melatonin is used as a sleep‑regulating agent to address disturbances in the circadian rhythm.
  • Insomnia: reduces the time needed to fall asleep and may improve overall sleep quality.
  • Jet lag: helps adjust the internal clock to new time zones, facilitating quicker adaptation.
  • Delayed sleep phase disorder: promotes earlier sleep onset for individuals with a shifted sleep schedule.
  • Shift work disorder: supports better alignment of sleep patterns with irregular work hours.

How It Works

  • Melatonin exerts its effects by binding to MT1 and MT2 receptors located in the suprachiasmatic nucleus of the hypothalamus. Activation of these G‑protein‑coupled receptors modulates intracellular cyclic AMP levels, leading to phase‑shifting of the circadian pacemaker and promotion of sleep onset. The hormone also influences other neurochemical pathways that regulate alertness and sleep architecture.

Side Effects

Melatonin is generally well tolerated, but adverse reactions can occur.

Common Side Effects

  • Drowsiness: feeling unusually sleepy during the day.
  • Headache: mild to moderate head pain.
  • Dizziness: sensation of light‑headedness.
  • Nausea: upset stomach or feeling sick.
  • Vivid dreams: unusually intense or memorable dreams.
  • Mood changes: mild irritability or anxiety.

Serious or Rare Side Effects

  • Allergic reaction: rash, itching, swelling, or difficulty breathing.
  • Severe dizziness: may lead to falls or injury.
  • Hormonal effects: menstrual irregularities or changes in libido.
  • Mood disorders: depression or severe anxiety.
  • Cardiovascular events: rare cases of palpitations or hypertension.
  • Liver enzyme elevation: abnormal liver function tests.

Precautions & Warnings

  • When considering melatonin therapy, certain safety measures are recommended.
  • Pregnancy: consult a healthcare provider before use.
  • Breastfeeding: discuss potential risks with a physician.
  • Pediatric use: administer only under medical supervision.
  • Anticoagulant therapy: monitor for increased bleeding tendency.
  • Driving or operating machinery: avoid if drowsiness occurs.
  • Store at room temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Melatonin may interact with other medications, requiring attention to potential effects.

Major Interactions (Avoid)

  • Anticoagulants (e.g., warfarin): may increase bleeding risk.
  • Immunosuppressants (e.g., cyclosporine): possible reduction in immunosuppressive efficacy.

Moderate Interactions (Monitor Closely)

  • Central nervous system depressants (e.g., benzodiazepines): additive sedation.
  • Caffeine: may diminish melatonin's sleep‑promoting effect.
  • Oral contraceptives: potential alteration of hormone levels.
  • Antidepressants (e.g., SSRIs): may affect melatonin metabolism.

Frequently Asked Questions

Orimelan contains melatonin, a hormone that helps regulate the sleep‑wake cycle. It is used to support normal sleep patterns in individuals who have difficulty falling asleep, maintaining sleep, or who experience circadian rhythm disruptions such as jet lag, shift work, or delayed sleep phase disorder.

Melatonin works by binding to MT1 and MT2 receptors in the brain’s suprachiasmatic nucleus, the central clock that controls circadian rhythms. Activation of these receptors adjusts the timing of the internal clock, promoting sleep onset and helping the body align with the desired sleep schedule.

The appropriate dose of Orimelan is determined by a qualified prescriber based on the patient’s age, condition, and response to therapy. Dosage may vary widely, ranging from low microgram amounts for children to higher doses for adults, and should always follow the healthcare professional’s recommendation.

Safety data for melatonin use in pregnancy and lactation are limited. Women who are pregnant, planning to become pregnant, or breastfeeding should discuss potential risks and benefits with their healthcare provider before starting Orimelan.

To order Orimelan, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies and procurement teams worldwide, and will request verification of trade or institutional credentials. After confirmation, the sales team provides pricing, availability, shipping details (including any cold‑chain requirements) and assists with import documentation.

Orimelan (melatonin) differs from conventional sedative sleep aids such as benzodiazepines or antihistamines because it works by resetting the circadian clock rather than inducing sedation. This mechanism typically results in fewer next‑day drowsiness effects, but efficacy may be limited to sleep disturbances linked to rhythm disorders. Individual response varies, so a healthcare professional should assess the most appropriate therapy.

Orimelan should be stored at room temperature, below 25 °C, in its original packaging. Keep the product away from moisture, direct sunlight, and heat sources. Ensure the container is tightly closed after each use to maintain product stability.

Orimelan is taken orally, usually with a glass of water. It can be taken with or without food, although some patients prefer taking it 30‑60 minutes before bedtime to align with the natural rise in endogenous melatonin levels.

Serious risks, though rare, include allergic reactions such as rash, swelling, or difficulty breathing, and hormonal effects that may alter menstrual cycles or cause mood disturbances. Patients should seek immediate medical attention if they experience signs of an allergic response or unexpected psychiatric symptoms.

Orimelan should be avoided by individuals with known hypersensitivity to melatonin or any excipients in the formulation. It is also contraindicated in patients taking certain medications that may interact severely, such as anticoagulants or immunosuppressants, without close medical supervision.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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