Medovert (Cinnarizine, Dimenhydrinate)

Medovert, a combination antihistamine, is used to manage conditions that involve vestibular disturbance and nausea.

• Motion sickness: reduces the sensation of nausea and vomiting during travel by stabilizing the inner ear signals.
• Vertigo: alleviates dizziness and spinning sensations associated with vestibular disorders.
• Nausea: provides relief from nausea caused by various triggers, including medication side effects.

• Cinnarizine blocks calcium channels and antagonizes H1‑histamine receptors, decreasing vestibular hair‑cell excitability, while dimenhydrinate acts as an H1‑receptor antagonist and anticholinergic. The combined actions dampen vestibular stimulation and suppress the central vomiting centre, thereby preventing nausea and vomiting. Both agents cross the blood‑brain barrier and exert their effects on the vestibular nuclei and the chemoreceptor trigger zone, contributing to overall antiemetic activity.

Like many antihistamines, Medovert may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Drowsiness: feeling of sleepiness or reduced alertness.
• Dry mouth: decreased salivation leading to a dry oral cavity.
• Gastrointestinal discomfort: mild nausea, abdominal cramps or dyspepsia.
• Headache: mild to moderate head pain.

Serious or Rare Side Effects

• Extrapyramidal symptoms: involuntary muscle movements or tremor, especially with prolonged use.
• Allergic reactions: rash, itching, swelling, or anaphylaxis in rare cases.
• Cardiac arrhythmia: irregular heart rhythm reported rarely, requiring medical attention.

Before using Medovert, consider the following safety measures and warnings.

• Contraindication: avoid use in individuals with known hypersensitivity to cinnarizine, dimenhydrinate or other antihistamines.
• Sedation risk: do not operate machinery or drive until you know how the medication affects you.
• Age limitation: use with caution in children under 12 years; safety not established.
• Drug interactions: consult a healthcare professional before combining with other central nervous system depressants or anticholinergic drugs.
• Pregnancy and lactation: discuss potential risks with a physician; data are limited.
• Store at ambient temperature: keep below 25 °C, in the original packaging, protected from moisture and light.

Medovert can interact with other medicines; awareness of major and moderate interactions helps prevent adverse outcomes.

Major Interactions (Avoid)

• CNS depressants: concurrent use with alcohol, benzodiazepines or opioids may enhance sedation and respiratory depression.
• Anticholinergic agents: combined use can increase risk of dry mouth, urinary retention and blurred vision.

Moderate Interactions (Monitor Closely)

• MAO inhibitors: may potentiate antihistaminic effects, requiring dose adjustment.
• Antidepressants (SSRIs, TCAs): may increase risk of serotonin syndrome or enhanced side effects.
• Antihypertensive drugs: cinnarizine may have mild blood‑pressure‑lowering effects, potentially augmenting antihypertensive therapy.