Drug Guide

Generic Name

Selenium Sulfide

Brand Names Selsun, Exsel

Classification

Therapeutic: Antifungal and Antidandruff Agent

Pharmacological: Selenium-containing compound with keratolytic and antifungal properties

FDA Approved Indications

Mechanism of Action

Selenium sulfide reduces scalp flakiness by slowing down the production of excess skin cells and has antifungal activity against Malassezia species, which are involved in dandruff and seborrheic dermatitis.

Dosage and Administration

Adult: Apply to damp hair, lather, leave on the scalp for 3-5 minutes, then rinse thoroughly. Use twice weekly or as directed.

Pediatric: Use as directed; safety and efficacy in children under 12 have not been thoroughly established.

Geriatric: Same as adult; monitor for scalp irritation or dermatitis.

Renal Impairment: No specific dose adjustment known; caution advised.

Hepatic Impairment: No specific dose adjustment known.

Pharmacokinetics

Absorption: Minimal systemic absorption after topical application.

Distribution: Primarily remains on the skin and scalp.

Metabolism: Not extensively metabolized; remains in topical form.

Excretion: Excreted in the feces and urine in trace amounts.

Half Life: Not well defined; primarily acts locally.

Contraindications

Precautions

Adverse Reactions - Common

Adverse Reactions - Serious

Drug-Drug Interactions

Drug-Food Interactions

Drug-Herb Interactions

Nursing Implications

Assessment: Inspect scalp for irritation, allergic reactions, or signs of worsening condition.

Diagnoses:

  • Impaired skin integrity related to dermatitis.
  • Risk for allergic skin reaction.

Implementation: Instruct patient on proper application technique. Advise to avoid contact with eyes.

Evaluation: Monitor scalp condition and for adverse reactions.

Patient/Family Teaching

Special Considerations

Black Box Warnings:

Genetic Factors: None identified

Lab Test Interference: None known

Overdose Management

Signs/Symptoms: Unlikely with topical use; systemic toxicity rare, but may include dermatitis or local irritation if ingested in large quantities.

Treatment: Remove application, wash affected area, provide symptomatic care, and seek medical attention if necessary.

Storage and Handling

Storage: Store at room temperature, away from heat and moisture.

Stability: Stable when stored properly.

This guide is for educational purposes only and is not intended for clinical use.