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Dermatology · Therapeutics: Whitfield ointment
Sample itemWhitfield ointment, used for hyperkeratotic tinea pedis, contains which two agents?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Benzoic acid and salicylic acid
Whitfield ointment combines benzoic acid (fungistatic) and salicylic acid (keratolytic), usually in a 2 to 1 ratio. It helps scaly and hyperkeratotic dermatophyte infections of the feet. It may irritate if used on inflamed skin.
Option by option
A. Sulphur and coal tar
Sulphur and coal tar are used for other dermatoses.
B. Tretinoin and clindamycin
Tretinoin and clindamycin is an acne combination.
C. Benzoic acid and salicylic acid (correct)
Correct. Whitfield ointment contains benzoic and salicylic acids.
D. Clotrimazole and betamethasone
Clotrimazole with betamethasone is a different combination cream.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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