Product image of Melatonin supplied by GNH India

Melatonin

Active Ingredient:
Melatonin
Origin:
EU

Melatonin

Melatonin, the active ingredient in Melatonin, is a melatonin receptor agonist presented as a tablet for oral use. It assists adults with insomnia, other sleep disorders, and jet lag by supporting the natural sleep‑wake cycle. The compound interacts with specific brain receptors to help initiate and maintain sleep, offering a non‑prescription option for individuals experiencing difficulty falling asleep or adjusting to new time zones.

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

Manufacturer / TM Owner

Consilient Health Ltd

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Indications & Clinical Uses

  • Melatonin is used to address disorders of the sleep‑wake cycle.
  • Insomnia: helps initiate sleep and improve sleep duration in adults with difficulty falling asleep.
  • Sleep disorders: supports regulation of circadian rhythm in conditions such as delayed sleep phase syndrome.
  • Jet lag: reduces the time needed to adjust to new time zones after rapid travel across multiple time zones.

How It Works

  • Melatonin acts as an agonist at the MT1 and MT2 receptors in the suprachiasmatic nucleus, mimicking the endogenous hormone that signals darkness. Activation of these G‑protein‑coupled receptors modulates circadian rhythm, promotes sleep onset, and regulates hormonal secretion associated with the sleep‑wake cycle. By binding to these receptors, melatonin reduces neuronal firing that maintains wakefulness, thereby facilitating the transition to sleep.

Side Effects

Melatonin is generally well tolerated, but some users may experience adverse reactions.

Common Side Effects

  • Headache: mild to moderate intensity.
  • Dizziness: transient sensation of light‑headedness.
  • Daytime sleepiness: feeling unusually drowsy after dosing.
  • Nausea: occasional stomach upset.
  • Vivid dreams: unusually intense or memorable dreams.
  • Mild gastrointestinal discomfort: bloating or mild cramps.

Serious or Rare Side Effects

  • Allergic reactions: rash, itching, or swelling.
  • Severe dizziness or vertigo: may indicate central nervous system involvement.
  • Mood changes: depression or anxiety exacerbation.
  • Hallucinations: visual or auditory disturbances.
  • Severe depression or suicidal thoughts: rare but reported.
  • Abnormal heart rhythm: palpitations or arrhythmia.

Precautions & Warnings

  • Before using melatonin, consider the following safety measures.
  • Assess sleep pattern: evaluate underlying causes of sleep disturbance before initiating therapy.
  • Avoid driving: potential drowsiness may impair motor skills.
  • Limit alcohol: concurrent intake can increase sedation.
  • Use lowest effective dose: minimizes risk of side effects.
  • Consult healthcare provider if pregnant or breastfeeding: safety data are limited.
  • Store at room temperature: keep in the original pack, protect from moisture and light.

Avoid Interactions

Melatonin can interact with several medication classes; awareness helps mitigate risks.

Major Interactions (Avoid)

  • Anticoagulants: may increase bleeding risk.
  • Immunosuppressants (e.g., cyclosporine): may reduce melatonin clearance.
  • CNS depressants (e.g., benzodiazepines): additive sedation.
  • Fluoroquinolone antibiotics: may alter melatonin metabolism.
  • Hormonal contraceptives: may affect hormone balance.

Moderate Interactions (Monitor Closely)

  • Antidepressants (SSRIs): possible serotonin syndrome.
  • Antihypertensives: may enhance blood‑pressure‑lowering effect.
  • Caffeine: may counteract sleep‑promoting action.
  • Beta‑blockers: may increase endogenous melatonin levels.
  • Vaccines: theoretical immunomodulation requiring observation.

Frequently Asked Questions

Melatonin is used to help regulate the sleep‑wake cycle. It is commonly employed to treat insomnia, various sleep disorders such as delayed sleep phase syndrome, and to alleviate the symptoms of jet lag after rapid travel across multiple time zones.

Melatonin works by binding to MT1 and MT2 receptors in the brain’s suprachiasmatic nucleus. This activation mimics the body’s natural nighttime hormone, signaling darkness, which helps synchronize circadian rhythms and promotes the onset of sleep.

The appropriate dose of melatonin is individualized. A qualified prescriber determines the strength and timing based on the patient’s age, condition, and response, ensuring the lowest effective amount is used.

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

To order melatonin, 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 (including any cold‑chain requirements), and import documentation.

Unlike prescription hypnotics that act on GABA receptors, melatonin targets the body’s natural circadian signaling pathways. It generally has a milder side‑effect profile and is not classified as a controlled substance, making it a preferred option for short‑term sleep support or jet‑lag management.

Melatonin tablets should be stored at room temperature, below 25 °C. Keep them in the original packaging, protect from moisture and direct light, and ensure the container is tightly closed to maintain product stability.

Melatonin is taken orally, usually as a tablet, with water. It is typically taken shortly before the desired bedtime, but exact timing should follow the prescriber’s instructions to align with the individual’s sleep schedule.

Serious risks, although rare, include severe allergic reactions (rash, swelling, difficulty breathing), marked mood changes such as depression or suicidal thoughts, and unusual heart rhythm disturbances. Any of these symptoms should prompt immediate medical evaluation.

Melatonin should be avoided by individuals with known hypersensitivity to the product, those taking medications that have major contraindications (e.g., certain anticoagulants or immunosuppressants), and patients with uncontrolled psychiatric disorders unless supervised by a clinician.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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