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## Oxymetazoline Nasal Spray
### Overview
Oxymetazoline is an alpha-adrenergic agonist that causes vasoconstriction of nasal mucosal blood vessels, reducing swelling and congestion.
### Primary Indications
* Nasal congestion associated with the common cold, allergic rhinitis, or sinusitis.
### Adult Dosing
* **2 sprays in each nostril every 10-12 hours as needed.**
* **Maximum duration of use: 3 days.** Prolonged use can lead to rebound congestion (rhinitis medicamentosa).
### Pediatric Dosing
* **Children 6 to 11 years:** 1 to 2 sprays in each nostril every 10-12 hours as needed. Maximum duration of use: 3 days.
* **Children under 6 years:** Use is not recommended or should be under the guidance of a healthcare provider. Specific dosing is not well-established for this age group.
### Dose Adjustments
* No specific dose adjustments are typically required for renal or hepatic impairment, but prolonged use should be avoided in all patients.
### Contraindications
* Hypersensitivity to oxymetazoline or any component of the formulation.
* Patients with narrow-angle glaucoma.
* Use with caution in patients with cardiovascular disease (e.g., hypertension, ischemic heart disease), hyperthyroidism, diabetes mellitus, or prostatic hyperplasia.
### Adverse Effects
* **Common:** Nasal burning, stinging, dryness, sneezing.
* **Less Common:** Rebound congestion (rhinitis medicamentosa) with prolonged use, increased blood pressure, palpitations, insomnia, nervousness, headache.
### Key Drug Interactions
* **Monoamine Oxidase Inhibitors (MAOIs) and within 14 days of stopping MAOIs:** Concomitant use may potentiate the pressor effect of oxymetazoline.
* **Other sympathomimetic agents:** May lead to additive pressor effects.
### Monitoring
* Monitor for rebound congestion (increased nasal stuffiness after the medication wears off).
* Monitor blood pressure and heart rate, especially in patients with pre-existing cardiovascular conditions.
### Clinical Pearls
* Limit use to 3 days to prevent rhinitis medicamentosa.
* Instruct patients on proper administration technique (e.g., tilting head slightly forward, inserting nozzle, sniffing gently).
* If symptoms persist beyond 3 days or worsen, advise patient to discontinue and consult a healthcare provider.
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*This information is intended for clinical use and is not exhaustive. Always consult the official prescribing information and current clinical guidelines before making treatment decisions. Dosing recommendations may vary based on specific product formulations and local protocols.*
