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# Oxymetazoline Nasal Spray ## Overview Oxymetazoline is an alpha-adrenergic agonist that acts as a topical vasoconstrictor. ## Primary Indications * Temporary relief of nasal congestion due to the common cold, hay fever, or other upper respiratory allergies. ## Adult Dosing * **Sinex (0.05% nasal spray):** 2 to 3 sprays in each nostril every 10 to 12 hours as needed. * **Do not exceed 2 doses in any 24-hour period.** ## Pediatric Dosing * **Children 6 to 12 years:** 2 to 3 sprays in each nostril every 10 to 12 hours as needed. * **Children under 6 years:** Consult a healthcare provider. ## Dose Adjustments * No specific dose adjustments are necessary for renal or hepatic impairment. However, caution is advised in patients with hypertension, heart disease, or hyperthyroidism. ## Contraindications * Hypersensitivity to oxymetazoline or any component of the formulation. * Use within 14 days of stopping a monoamine oxidase inhibitor (MAOI). ## Adverse Effects * **Common:** Nasal burning, stinging, dryness, sneezing. * **Less Common:** Increased blood pressure, headache, nervousness, insomnia, palpitations, rebound nasal congestion (with prolonged use). * **Rare:** Allergic reactions. ## Key Drug Interactions * **MAOIs:** Concomitant use can cause severe hypertensive crisis. * **Tricyclic Antidepressants (TCAs):** May potentiate the pressor effects of oxymetazoline. ## Monitoring * Monitor for rebound congestion, especially with use beyond 3 days. * Monitor blood pressure in patients with pre-existing cardiovascular conditions. ## Clinical Pearls * Limit use to a maximum of 3 consecutive days to prevent rebound nasal congestion (rhinitis medicamentosa). * Advise patients to avoid spraying in eyes. * If pregnant or breastfeeding, consult a healthcare provider before use. *** *Disclaimer: This information is intended for healthcare professionals. Always consult the official prescribing information and relevant guidelines for complete details before making any clinical decisions.*