Nezeril (Oxymetazoline Hydrochloride)

Oxymetazoline nasal spray works on the nasal vasculature to reduce swelling and improve airflow. It is indicated for:

• Nasal congestion due to common cold: provides rapid decongestion and easier breathing.
• Allergic rhinitis: alleviates nasal blockage caused by seasonal or perennial allergens.
• Sinusitis: helps open nasal passages and reduces pressure during acute sinus inflammation.

• Oxymetazoline hydrochloride acts as a selective alpha‑1 and alpha‑2 adrenergic receptor agonist. By stimulating these receptors on the smooth muscle of nasal mucosal blood vessels, it induces vasoconstriction, which reduces edema and limits blood flow to the nasal lining, thereby decreasing congestion and improving airway patency.

Oxymetazoline nasal spray may cause unwanted reactions.

Common Side Effects

• Burning or stinging sensation in the nose.
• Nasal dryness or irritation.
• Sneezing shortly after application.
• Mild headache.
• Temporary taste disturbance.
• Nasal discharge that is clear or watery.

Serious or Rare Side Effects

• Persistent nasal congestion (rebound congestion) with prolonged use.
• Elevated blood pressure or tachycardia.
• Nasal ulceration or crusting.
• Severe headache or facial pain.
• Allergic reaction such as rash, itching or swelling.
• Vision changes or eye irritation.

Before using Oxymetazoline nasal spray, consider the following precautions:

• Age restriction: avoid use in children under the age specified by local regulations.
• Duration limit: do not exceed the recommended treatment period (typically no more than three consecutive days).
• Cardiovascular conditions: use with caution if the patient has hypertension, coronary artery disease, or arrhythmias.
• Pregnancy and lactation: safety has not been established; consult a healthcare professional.
• Drug interactions: review concomitant medications that may affect blood pressure.
• Store at room temperature: keep in the original packaging, protect from moisture and direct heat.

Oxymetazoline may interact with other agents that influence blood pressure or adrenergic pathways.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): risk of hypertensive crisis.
• Sympathomimetic drugs (e.g., epinephrine): additive vasoconstrictive effect.

Moderate Interactions (Monitor Closely):\n- Antihypertensive medications: possible reduction in blood‑pressure‑lowering effect.

• Tricyclic antidepressants: may enhance vasoconstriction.
• Other nasal decongestants: increased risk of rebound congestion.