Nasadur (Xylometazoline Hydrochloride)

Xylometazoline Hydrochloride is used as a topical nasal decongestant to reduce swelling of the nasal mucosa.

• Common cold nasal congestion: reduction of nasal blockage and mucosal swelling, leading to improved airflow and easier breathing during acute viral upper‑respiratory infection.
• Sinusitis-related congestion: alleviation of sinus pressure and nasal obstruction by constricting dilated vessels, which helps to drain secretions and relieve facial discomfort.
• Allergic rhinitis: relief of nasal stuffiness caused by allergen‑induced inflammation, decreasing edema and allowing better air passage during seasonal or perennial allergic episodes.

• Xylometazoline Hydrochloride acts as a selective alpha‑adrenergic receptor agonist on the smooth muscle of nasal mucosal blood vessels. Activation of α1‑adrenergic receptors induces vasoconstriction, reducing blood flow and edema, which opens the nasal airway. The drug’s high affinity for α1 receptors ensures a pronounced local response while sparing β‑adrenergic sites, minimizing cardiac stimulation. Onset of action typically occurs within minutes, and the effect lasts for several hours.

Xylometazoline Hydrochloride may cause local or systemic adverse reactions, most of which are mild and transient.

Common Side Effects

• Nasal irritation: a mild burning, stinging or tingling sensation in the nostrils that usually resolves quickly.
• Sneezing: a transient increase in sneezing episodes shortly after spray administration.
• Dryness of nasal mucosa: sensation of dryness or crust formation that may cause mild discomfort.
• Headache: a mild to moderate headache that can occur within an hour of use.

Serious or Rare Side Effects

• Rebound congestion (rhinitis medicamentosa): worsening nasal blockage after continuous use beyond recommended duration, requiring medical evaluation.
• Hypertension: elevation of systemic blood pressure, particularly in patients with pre‑existing cardiovascular disease.
• Cardiac arrhythmia: irregular heart rhythm that may develop with excessive systemic absorption, especially in overdose situations.

When using Nasadur, certain precautions should be observed to ensure safe and effective treatment.

• Duration of use: limit application to no more than three consecutive days to avoid rebound congestion.
• Age restrictions: avoid use in children under 6 years unless directed by a healthcare professional.
• Pre‑existing hypertension: monitor blood pressure closely if the patient has high blood pressure.
• Concurrent nasal surgery: postpone use until postoperative healing is complete.
• Pregnancy and lactation: consult a physician before use as safety data are limited.
• Store at room temperature: keep the product below 25 °C in the original container, protected from moisture and direct sunlight.

Xylometazoline Hydrochloride can interact with other medicines or substances, influencing its safety profile.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): concurrent use may precipitate hypertensive crises due to additive sympathomimetic activity, therefore the combination should be avoided.
• Sympathomimetic agents such as pseudoephedrine or phenylephrine: combined vasoconstrictive effects can lead to excessive elevation of blood pressure and should not be co‑administered.

Moderate Interactions (Monitor Closely)

• Antihypertensive medications: the nasal decongestant may counteract the blood‑pressure‑lowering effect, so patients should have their blood pressure checked regularly.
• Beta‑blockers: additive cardiovascular actions may occur, requiring careful monitoring of heart rate and blood pressure during combined therapy.
• Nasal corticosteroids: while generally compatible, concurrent use may increase local irritation or dryness; clinicians should assess nasal mucosa tolerance.