Mercalm

Dimenhydrinate, the active ingredient in Mercalm, is an antihistamine presented as a tablet for oral use. It treats motion‑induced nausea, vomiting and vertigo in adults and children. GNH USA supplies Mercalm as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Dimenhydrinate, combined with caffeine, acts on the vestibular system and histamine pathways to control nausea and related symptoms.

- Motion Sickness: reduces vertigo, nausea and vomiting associated with travel. - Post‑operative Nausea: helps control nausea and vomiting after surgical procedures. - Vertigo: alleviates dizziness caused by vestibular disturbances.

Common Side Effects: - Drowsiness: mild sedation or fatigue. - Dry Mouth: reduced salivation leading to throat discomfort. - Blurred Vision: temporary visual disturbances. - Constipation: slowed gastrointestinal motility. - Headache: mild to moderate head pain. - Increased Heart Rate: mild tachycardia.

Serious or Rare Side Effects: - Allergic Reactions: rash, swelling, or urticaria. - Cardiac Arrhythmia: irregular heart rhythms. - Seizures: rare convulsive episodes. - Severe Hypotension: marked drop in blood pressure. - Confusion or Hallucinations: altered mental status. - Respiratory Depression: difficulty breathing in severe cases.

Before using Mercalm, consider the following precautions: - Glaucoma: avoid if you have narrow‑angle glaucoma. - Urinary Retention: use cautiously in patients with prostate enlargement. - Asthma: monitor for bronchospasm. - Pregnancy: consult a healthcare professional before use. - Elderly: start with the lowest effective dose. - Drug Interactions: review concomitant medications. - Store below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Dimenhydrinate may interact with several drug classes.

Major Interactions (Avoid): - MAO Inhibitors: risk of hypertensive crisis. - CNS Depressants: additive sedation. - Anticholinergic Drugs: excessive anticholinergic load. - Alcohol: enhanced drowsiness. - Certain Antidepressants: increased anticholinergic effects.

Moderate Interactions (Monitor Closely): - Antihypertensives: possible additive blood pressure lowering. - Diuretics: may enhance dehydration. - Other Antihistamines: increased sedation. - CYP1A2 Inhibitors (e.g., ciprofloxacin): elevated caffeine levels. - Antacids: may affect absorption.