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Selenium Sulfide

Selsun Blue

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Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.

Drug Class

Dermatologic

Routes

Topical

Indications

Dermatophytosis (adjunct shampoo)MalasseziaMalassezia dermatitisSeborrheic dermatitis

Mechanism of Action

Cytostatic agent reducing epidermal turnover rate. Antifungal activity against Malassezia. Keratolytic and anti-seborrheic.

Side effects & warnings

TOXIC TO CATS — do not use. Dogs: rinse thoroughly. Eye irritation. Drying to skin. 2.5% is prescription strength. May worsen dry seborrhea.

Species with Selenium Sulfide dosing data (3 dose rules)

Cat (Domestic)Dog (Domestic)

Species references:All Cat (Domestic) drugsAll Dog (Domestic) drugs

Evidence levels across 3 dose rules

Moderate×2Weak×1

Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.

Backed by a published source

  • · Plumb's Veterinary Drug Handbook, 9th Ed

Sample dosing (2 of 3 cited rules)

A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.

SpeciesRouteDoseFrequencyEvidenceSource
Dog (Domestic)Topical0 mg/kgq3-7 days shampooModeratePlumb's Veterinary Drug Handbook, 9th Ed
Dog (Domestic)Topical0 topical2x weeklyModeratePlumb's Veterinary Drug Handbook, 9th Ed

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Calculate Dosage for Selenium Sulfide