Sinex%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252520%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252528oxymetazoline%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252529

## Sinex (oxymetazoline) ### Overview Sinex is a nasal spray containing oxymetazoline, a topical decongestant that acts as an alpha-adrenergic agonist. It causes vasoconstriction of the nasal vasculature, 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 doses in a 24-hour period. ### Pediatric Dosing * **Children 6 years and older:** 2 sprays in each nostril every 10-12 hours as needed. * **Children under 6 years:** Not recommended. Safety and efficacy have not been established. ### Dose Adjustments * No specific dose adjustments are generally required for hepatic or renal impairment. ### Contraindications * Hypersensitivity to oxymetazoline or any component of the formulation. * Patients currently taking or having stopped within the last 14 days monoamine oxidase inhibitors (MAOIs). ### Adverse Effects * **Common:** Nasal burning, stinging, dryness, sneezing, increased nasal discharge, rebound congestion (rhinitis medicamentosa). * **Less Common/Serious:** Headache, dizziness, nausea, insomnia, palpitations, hypertension, tachycardia. ### Key Drug Interactions * **MAOIs and Tricyclic Antidepressants:** Concomitant use can potentiate the pressor effects of oxymetazoline, leading to severe hypertension. Discontinue MAOIs at least 14 days prior to starting oxymetazoline. ### Monitoring * Monitor for signs of rebound congestion with prolonged use. * Monitor blood pressure in patients with pre-existing cardiovascular conditions. ### Clinical Pearls * Limit use to a maximum of 3 consecutive days to prevent rebound congestion (rhinitis medicamentosa). * Administer by tilting the head forward and inserting the spray tip no more than 1/4 inch into each nostril. --- *This information is intended for healthcare professionals. Always verify current prescribing information and consult with a pharmacist or physician before making any treatment decisions.*