Sinex%2525252525252525252525252525252525252525252525252525252525252525252525252525252525252520%2525252525252525252525252525252525252525252525252525252525252525252525252525252525252528oxymetazoline%2525252525252525252525252525252525252525252525252525252525252525252525252525252525252529

# Sinex (oxymetazoline) ## Overview Oxymetazoline is a topical alpha-adrenergic agonist that causes vasoconstriction of nasal mucosal vessels, reducing swelling and congestion. ## Primary Indications * Nasal congestion associated with the common cold, allergic rhinitis, or sinusitis. ## Adult Dosing * **Nasal Spray:** 2 sprays in each nostril every 10-12 hours as needed. * **Maximum:** Do not exceed 2 applications in a 24-hour period. Do not use for more than 3 consecutive days. ## Pediatric Dosing * **Children 6 to under 12 years:** 1 to 2 sprays in each nostril every 10-12 hours as needed. * **Children under 6 years:** Not recommended; consult a pediatrician. * **Maximum:** Do not exceed 2 applications in a 24-hour period. Do not use for more than 3 consecutive days. ## Dose Adjustments No dose adjustments are typically required based on renal or hepatic impairment for topical nasal use. ## Contraindications * Hypersensitivity to oxymetazoline or any component of the formulation. * Use in patients with narrow-angle glaucoma. ## Adverse Effects * **Common:** Nasal burning, stinging, dryness, irritation. Sneezing. Rebound congestion (rhinitis medicamentosa) with prolonged use. * **Less Common:** Headache, nervousness, insomnia, palpitations, increased blood pressure. ## Key Drug Interactions * **Monoamine Oxidase Inhibitors (MAOIs):** Concurrent use can lead to hypertensive crisis. Discontinue MAOIs at least 14 days before starting oxymetazoline. * **Tricyclic Antidepressants (TCAs):** May potentiate the pressor effects of oxymetazoline. ## Monitoring * Monitor for signs of rebound congestion or overuse. * Monitor blood pressure in patients with pre-existing hypertension or those using MAOIs or TCAs. ## Clinical Pearls * Limit use to a maximum of 3 consecutive days to prevent rebound congestion (rhinitis medicamentosa). * If symptoms do not improve or worsen, discontinue use and consult a healthcare provider. * Prime the pump mechanism before first use by actuating it several times. *** *Disclaimer: This information is intended for clinical use and does not substitute for professional medical advice. Always consult the most current prescribing information and professional guidelines before making any treatment decisions.*