Europe — EMA
Melatonin Orion Pharma
GNH USA supplies Melatonin Orion Pharma (Melatonin), a hormone for sleep regulation and circadian rhythm disorders. Request a quote for global supply.
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What is Melatonin?
Melatonin, the active ingredient in Melatonin Orion Pharma, is a hormone presented as an oral dosage form for oral use. It helps regulate the sleep‑wake cycle and is commonly used to support normal sleep patterns in adults and children with circadian rhythm disturbances.
GNH USA supplies Melatonin Orion Pharma as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable sourcing for regulated markets across Europe, Asia and the Americas.
What is Melatonin used for?
Melatonin acts on melatonin receptors to adjust circadian timing and is employed for several sleep‑related conditions. - Insomnia: helps reduce sleep onset latency and improve sleep quality in individuals with difficulty falling asleep. - Jet lag: assists in realigning the internal clock after rapid east‑west travel, facilitating faster adaptation to new time zones. - Shift work disorder: supports workers with irregular schedules to achieve more consistent sleep patterns.
What are the side effects of Melatonin?
Melatonin is generally well tolerated, but some users may experience adverse reactions.
Common Side Effects: - Drowsiness: feeling of increased sleepiness during the day. - Headache: mild to moderate head pain. - Dizziness: sensation of light‑headedness or imbalance. - Nausea: mild stomach upset. - Vivid dreams: unusually intense or memorable dreams. - Fatigue: general lack of energy.
Serious or Rare Side Effects: - Allergic reaction: rash, itching, swelling, or hives. - Severe hypotension: marked drop in blood pressure. - Mood changes: depression or increased anxiety. - Seizures: rare occurrence of convulsive episodes. - Hallucinations: visual or auditory disturbances.
What precautions apply to Melatonin?
When considering melatonin therapy, several precautionary measures should be observed to ensure safe use. - Medical supervision: use under guidance of a healthcare professional, especially for children or chronic use. - Hypersensitivity: avoid if known allergy to melatonin or excipients. - Anticoagulant use: monitor bleeding risk when combined with warfarin or similar agents. - Depression history: use cautiously in patients with depressive disorders. - Pregnancy and lactation: safety not established; discuss risks with a physician. - Store at ambient temperature below 25°C: keep in the original container, protect from moisture and light.
What does Melatonin interact with?
Melatonin can interact with other medicines, altering their effectiveness or safety profile.
Major Interactions (Avoid): - Anticoagulants (e.g., warfarin): increased bleeding risk. - Immunosuppressants (e.g., cyclosporine): reduced drug levels. - Central nervous system depressants (e.g., benzodiazepines): excessive sedation.
Moderate Interactions (Monitor Closely): - Oral contraceptives: possible reduction in contraceptive efficacy. - Antihypertensives: additive blood pressure‑lowering effect. - Antidiabetic agents: potential alteration of glucose control. - Caffeine: may diminish melatonin’s sleep‑inducing effect.



