Nasal Decongestants Study Notes

Nasal decongestants, including Oxymetazoline, Phenylephrine, and Pseudoephedrine, work by causing vasoconstriction in nasal membranes to reduce blood flow and swelling, promoting drainage and easing congestion.

Generic Names and Brand Names:

• Oxymetazoline: Vicks Sinex Moisturizing, 0.05%; 2-3 drops or sprays twice daily for less than 3 days.

• Phenylephrine: Neo-Synephrine Cold and Allergy, 0.25%, 0.5%, 1%; 2-3 drops or sprays every 4 hours for less than 3 days.

• Pseudoephedrine: Sudafed PE/Sudafed, available in various forms; 10-20 mg every 4 hours, maximum 240 mg/24 hours.

Uses:

• Relieves congestion from rhinitis due to colds and allergies, often used with antihistamines.

Advantages & Disadvantages:

• Advantages: Minimal systemic effects with topical use.

• Disadvantages: Ineffective for eye symptoms and risk of rhinitis medicamentosa.

Cautions:

• Use cautiously in patients with hypertension, hyperthyroidism, diabetes, heart disease, and in states regulating pseudoephedrine due to its use in meth production.

Nursing Implications:

• Assess history for conditions like hypertension and get baseline vital signs.

• Monitor urinary function, particularly in older men.

Common Adverse Effects:

• Mild nasal irritation; serious effects may include urinary retention and significant hypertension from excessive use.