Minor ailments

Dandruff (seborrheic dermatitis)

Clinical basis & sources

Sources used

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Allowable drugs under Schedule 4 (10)

Drugs an Ontario pharmacist may prescribe for Dandruff (seborrheic dermatitis) under O. Reg. 256/24, Schedule 4. Choice still depends on the assessment, contraindications, allergies, and product availability — this is the eligible list, not a recommendation.

  • Betamethasone valerate
  • Ciclopirox
  • Coal tar
  • Hydrocortisone
  • Ketoconazole
  • Roflumilast
  • Salicylic acid
  • Selenium sulfide
  • Triclosan
  • Zinc pyrithione

Symptoms this assessment screens

  • Flaking or scale on scalp consistent with dandruff/seborrheic dermatitis
  • Mild to moderate itch or irritation without severe pain, pustules, oozing, or scarring
  • Limited to typical seborrheic areas and pharmacist is confident this is not tinea, psoriasis, infection, or contact dermatitis
  • No patchy hair loss, broken hairs, tender boggy scalp, pustules, or lymph nodes
  • Shampoo use, allergies, prior antifungal response, pregnancy/lactation if relevant, and scalp irritation risk reviewed

Red flags — any positive means refer

  • Patchy hair loss, broken hairs, boggy/tender scalp, pustules, oozing, crusting, fever, or swollen lymph nodes
  • Thick silvery plaques, bleeding, severe inflammation, marked pain, nail changes, or lesions on elbows/knees/body suggesting psoriasis or another dermatosis
  • Infant cradle cap, immunocompromise, severe neurologic disease/frailty, extensive face/body involvement, or complex dermatologic history
  • No improvement after 2 to 4 weeks of appropriate antifungal shampoo use, frequent relapse, or diagnosis uncertainty
  • Needs a nonlisted/high-potency corticosteroid, calcineurin inhibitor, systemic antifungal, antibiotic, or another therapy outside Schedule 4

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