Sinex%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252520%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252528oxymetazoline%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252529

# Sinex (Oxymetazoline) ## Overview Oxymetazoline is a topical decongestant that acts as an alpha-adrenergic agonist, causing vasoconstriction of the nasal mucosa. This reduces swelling and congestion. ## Primary Indications Temporary relief of nasal congestion due to the common cold, hay fever, or other upper respiratory allergies. ## Adult Dosing Administer 2 sprays in each nostril every 10-12 hours as needed. Do not exceed 2 applications in a 24-hour period. ## Pediatric Dosing * **Children 6 years and older:** Administer 1-2 sprays in each nostril every 10-12 hours as needed. Do not exceed 2 applications in a 24-hour period. * **Children under 6 years:** Safety and efficacy have not been established. Consult a healthcare provider. ## Dose Adjustments No dose adjustments are typically required based on renal or hepatic impairment for topical nasal application. ## Contraindications * Hypersensitivity to oxymetazoline or any component of the formulation. * Patients with narrow-angle glaucoma. * Patients who have undergone transsphenoidal hypophysectomy or other transnasal surgery with dural exposure. ## Adverse Effects Common: Nasal burning, stinging, dryness, sneezing. Less Common: Rhinitis medicamentosa (rebound congestion) with prolonged use (>3 days), palpitations, increased blood pressure, dizziness, headache, insomnia. ## Key Drug Interactions Concomitant use with MAO inhibitors or within 2 weeks of discontinuing MAO inhibitors may cause hypertensive crisis. Use with caution in patients taking beta-blockers or other antihypertensives. ## Monitoring Monitor for signs of rebound congestion (rhinitis medicamentosa), particularly with prolonged or frequent use. Assess blood pressure, especially in patients with pre-existing hypertension or cardiovascular disease. ## Clinical Pearls * Limit use to a maximum of 3 consecutive days to prevent rhinitis medicamentosa. * Proper technique involves aiming the spray away from the nasal septum. * If nasal passages become occluded, advise the patient to wait 10 minutes before using again. *** *This information is intended for healthcare professionals. Always verify current prescribing information with the official drug labeling or a trusted resource.*