Maresyl 1mg/Ml (Xylometazoline Hydrochloride)

Xylometazoline Hydrochloride is a topical nasal decongestant that reduces swelling of the nasal mucosa in several upper‑respiratory conditions.

• Common cold: provides rapid relief of nasal congestion by decreasing mucosal edema.
• Sinusitis: alleviates congestion associated with acute sinus inflammation.
• Allergic rhinitis: reduces nasal blockage caused by allergen‑induced swelling.
• Upper respiratory tract infection: lessens nasal blockage during viral infections.
• Post‑operative nasal swelling: helps restore airway patency after nasal surgery.

• Xylometazoline Hydrochloride acts as a selective alpha‑adrenergic agonist on the α1‑adrenergic receptors of the nasal mucosal blood vessels. Activation induces vasoconstriction, which reduces blood flow, limits plasma exudation, and consequently diminishes mucosal edema and nasal airway resistance, providing decongestion.

Adverse reactions are generally local and transient, but can vary in frequency and severity.

Common Side Effects

• Nasal burning or stinging sensation.
• Mild dryness of the nasal mucosa.
• Sneezing shortly after application.
• Transient headache.
• Altered taste or bitter after‑taste.
• Mild epistaxis (nosebleed).

Serious or Rare Side Effects

• Severe hypertension or hypertensive crisis.
• Cardiac arrhythmias or tachycardia.
• Allergic reactions such as urticaria, angioedema, or anaphylaxis.
• Nasal ulceration or perforation with prolonged misuse.
• Rebound congestion (rhinitis medicamentosa) after extended use.
• Vision disturbances if the spray contacts the eyes.

Use Maresyl with awareness of specific safety considerations.

• Age restriction: not recommended for children under 6 years without medical advice.
• Pregnancy: safety not established; consult a healthcare professional before use.
• Cardiovascular disease: use cautiously in patients with hypertension or heart disease.
• Concomitant nasal decongestants: avoid simultaneous use to prevent additive vasoconstriction.
• Duration of therapy: limit use to 3‑5 days to reduce risk of rebound congestion.
• Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Xylometazoline may interact with systemic sympathomimetic agents and other medications affecting vascular tone.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): risk of hypertensive episodes.
• Systemic sympathomimetics (e.g., pseudoephedrine): additive vasoconstrictive effect may raise blood pressure.

Moderate Interactions (Monitor Closely):\n- Beta‑blockers: may blunt cardiovascular response to vasoconstriction.

• Topical nasal steroids: generally safe but monitor for local irritation.
• Other nasal sprays (e.g., antihistamine sprays): coordinate use to avoid over‑application and mucosal damage.