Mallozen (Melatonin)

Mallozen (melatonin) acts on the melatonin receptor pathway to address sleep‑related disorders.

• Insomnia: assists in reducing sleep onset latency and improving sleep maintenance in adults who have difficulty falling or staying asleep.
• Sleep‑wake rhythm disorders: helps synchronize disrupted circadian rhythms, such as in shift‑work disorder.
• Jet lag: supports adjustment of the internal clock after rapid travel across time zones, facilitating faster adaptation to new sleep schedules.

• Melatonin binds to MT1 and MT2 receptors in the suprachiasmatic nucleus, mimicking the endogenous hormone that signals darkness. Activation of these G‑protein‑coupled receptors modulates intracellular cyclic AMP levels, leading to phase‑shifting of the circadian pacemaker and promoting the onset of sleep. The overall effect is a normalization of the sleep‑wake cycle without direct sedation.

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

Common Side Effects

• Headache: mild to moderate discomfort often occurring shortly after ingestion.
• Dizziness: transient light‑headedness that usually resolves without intervention.
• Daytime sleepiness: occasional residual drowsiness, especially with higher doses.
• Nausea: mild gastrointestinal upset that subsides with continued use.
• Vivid dreams: occasional intense or unusual dreaming patterns.

Serious or Rare Side Effects

• Allergic reaction: rash, itching, swelling, or difficulty breathing requiring immediate medical attention.
• Severe rash: Stevens‑Johnson‑type skin eruption, though extremely uncommon.
• Mood changes: rare reports of depression or anxiety exacerbation.
• Seizures: isolated cases in predisposed individuals, considered very rare.

Before using Mallozen, consider the following safety measures.

• Assess underlying conditions: evaluate for depression, autoimmune disorders, or seizure history.
• Avoid operating machinery: refrain from driving or using heavy equipment if residual drowsiness occurs.
• Pregnancy and lactation: discuss potential risks with a healthcare professional before use.
• Concomitant CNS depressants: monitor for additive sedative effects when combined with alcohol or sleep‑inducing medications.
• Pediatric use: limit to children under specialist supervision due to limited safety data.
• Store at ambient temperature: keep below 25°C in the original container, protect from moisture and direct sunlight.

Melatonin can influence the activity of several other medicines; awareness of these interactions helps maintain safety.

Major Interactions (Avoid)

• Warfarin: may enhance anticoagulant effect, increasing bleeding risk.
• Cyclosporine: potential increase in blood concentrations, risking toxicity.
• Benzodiazepines: additive central nervous system depression leading to excessive sedation.

Moderate Interactions (Monitor Closely)

• NSAIDs: possible alteration of gastric protection, monitor for GI irritation.
• Oral contraceptives: melatonin may affect hormone metabolism; observe for cycle changes.
• Antihypertensives: potential modest reduction in blood pressure; check readings regularly.
• Antidepressants (SSRIs): monitor for heightened serotonergic activity.
• Caffeine: may counteract melatonin’s sleep‑promoting effect, advise timing adjustments.