Please check your internet connection and try again.
# Sinex (oxymetazoline)
## Overview
Oxymetazoline is a direct-acting alpha-adrenergic agonist that causes vasoconstriction. When used intranasally, it constricts blood vessels in the nasal mucosa, reducing swelling and congestion.
## Primary Indications
* Nasal congestion associated with the common cold, allergic rhinitis, or sinusitis.
## Adult Dosing
* **Nasal Spray:** Typically 0.05% solution. Two nasal sprays in each nostril every 10-12 hours as needed.
* **Maximum:** Do not exceed recommended dosage or frequency. Do not use for more than 3 consecutive days.
## Pediatric Dosing
* **Children 6-11 years:** Typically 0.05% solution. One or two nasal sprays in each nostril every 10-12 hours as needed.
* **Children under 6 years:** Safety and efficacy not established. Consult pediatrician.
## Dose Adjustments
No dose adjustments are typically needed based on renal or hepatic impairment for intranasal use.
## Contraindications
* Hypersensitivity to oxymetazoline or any component of the formulation.
* Use with MAO inhibitors or within 14 days of discontinuing MAO inhibitors.
## Adverse Effects
* **Common:** Nasal burning, stinging, dryness, sneezing, rebound congestion (rhinitis medicamentosa) with prolonged use.
* **Less Common:** Dizziness, headache, insomnia, palpitations, increased blood pressure.
## Key Drug Interactions
* **MAO Inhibitors (including isocarboxazid, phenelzine, tranylcypromine) and within 14 days of discontinuation:** Increased risk of hypertensive crisis.
* **Other sympathomimetic agents:** Potential for additive effects on blood pressure and heart rate.
## Monitoring
* Monitor for signs of rebound congestion or nasal mucosal damage with prolonged use.
* Monitor blood pressure, especially in patients with pre-existing cardiovascular conditions.
## Clinical Pearls
* Limit use to a maximum of 3 consecutive days to prevent rhinitis medicamentosa.
* If congestion persists beyond 3 days, discontinue use and consult a healthcare provider.
* Instruct patients on proper nasal spray technique to minimize systemic absorption and maximize local effect.
***
*Disclaimer: This information is intended for clinical pharmacists and healthcare professionals. It is not a substitute for professional medical advice. Always consult the most current prescribing information and your healthcare provider for any medical condition or treatment. Dosing may vary based on individual patient factors and local protocols.*
