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# Sinex (oxymetazoline)
## Overview
Oxymetazoline is a topical nasal decongestant that acts as an alpha-adrenergic agonist. It causes vasoconstriction of the nasal mucosa, reducing swelling and congestion.
## Primary Indications
Temporary relief of nasal congestion associated with 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 24 hours.
## Pediatric Dosing
**Ages 6 to under 12 years:** 1 to 2 sprays in each nostril every 10-12 hours as needed. Do not exceed 2 applications in 24 hours.
**Ages 2 to under 6 years:** 1 spray in each nostril every 10-12 hours as needed. Do not exceed 2 applications in 24 hours.
**Under 2 years:** Not recommended. Consult a pediatrician.
## Dose Adjustments
No dose adjustments are typically required based on renal or hepatic impairment due to minimal systemic absorption with topical use.
## Contraindications
Hypersensitivity to oxymetazoline or any component of the formulation. Patients with narrow-angle glaucoma.
## Adverse Effects
Common: Nasal burning, stinging, sneezing, increased nasal discharge.
Less Common: Rebound congestion (rhinitis medicamentosa) with prolonged use, headache, dizziness, nervousness, insomnia.
## Key Drug Interactions
Monoamine oxidase inhibitors (MAOIs) and within 2 weeks of stopping MAOIs: Risk of hypertensive crisis.
Other vasoconstrictive agents: Potential for additive pressor effects.
## Monitoring
Monitor for signs of rebound congestion with prolonged use (>3 days). Assess for systemic side effects, especially in patients with cardiovascular disease or hypertension.
## Clinical Pearls
Limit use to a maximum of 3 consecutive days to prevent rebound congestion. If congestion persists, recommend alternative therapies or consultation with a healthcare provider. Shake well before use.
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*Disclaimer: This information is intended for educational purposes and does not substitute for professional medical advice. Always consult with a qualified healthcare provider and refer to the most current prescribing information for definitive guidance.*
