Melatonin Glenmark (Melatonin)

Melatonin Glenmark, a melatonin receptor agonist, acts on the circadian rhythm pathway to improve sleep quality.

• Sleep onset insomnia: facilitates faster sleep initiation in adults.
• Jet lag: helps adjust the internal clock after rapid time‑zone travel.
• Circadian rhythm sleep disorder: supports alignment of the sleep‑wake cycle to a desired schedule.

• Melatonin binds to MT1 and MT2 receptors in the suprachiasmatic nucleus of the hypothalamus, mimicking the endogenous hormone released at night. Activation of these G‑protein‑coupled receptors reduces neuronal firing, lowers core body temperature, and promotes the onset of the sleep phase, thereby synchronising the circadian rhythm with the external light‑dark cycle.

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

Common Side Effects

• Headache: mild discomfort often resolving without treatment.
• Dizziness: transient light‑headedness, especially after the first dose.
• Daytime sleepiness: feeling drowsy during waking hours.

Serious or Rare Side Effects

• Allergic reaction: rash, itching, swelling, or difficulty breathing.
• Severe rash or Stevens‑Johnson syndrome: extensive skin involvement.
• Depression or mood changes: emergence of depressive symptoms.

When considering Melatonin Glenmark, several precautionary measures should be observed to ensure safe use.

• Evaluate sleep patterns: confirm diagnosis of insomnia or jet lag before initiating therapy.
• Avoid concurrent alcohol: alcohol may increase sedative effects.
• Monitor daytime drowsiness: advise patients not to operate machinery if sleepiness occurs.
• Use caution in depression: melatonin can affect mood; monitor for worsening symptoms.
• Pediatric use: restrict to children only when prescribed by a qualified clinician.
• Store at ambient temperature: keep in original container, protect from moisture and direct sunlight.

Melatonin Glenmark can interact with other medicines, and awareness of these interactions helps prevent adverse outcomes.

Major Interactions (Avoid)

• CNS depressants (e.g., benzodiazepines, barbiturates): may intensify sedation.
• Anticoagulants (e.g., warfarin): potential alteration of bleeding risk.
• Immunosuppressants (e.g., cyclosporine): may affect melatonin metabolism.

Moderate Interactions (Monitor Closely)

• Oral contraceptives: melatonin may reduce contraceptive efficacy.
• Antihypertensive agents: additive blood‑pressure‑lowering effect.
• Caffeine‑containing products: may counteract melatonin’s sleep‑promoting action.