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Topical azole antifungal

Clotrimazole 1% Cream / Solution

Brand names: Canesten (1% cream, 1% solution, powder spray)

Clotrimazole cream and solution are topical imidazole antifungals applied to the skin to treat dermatophyte infections (such as tinea/ringworm and athlete's foot), cutaneous candidiasis and pityriasis versicolor.

Dosing — being independently re-sourced

ClinCalc Pro is rebuilding its dose data from primary open sources — the manufacturer SmPC (eMC), the WHO Model Formulary and other official references — under clinician review. This drug's structured dose is not yet published here. Confirm all doses against the product SmPC and your local formulary before prescribing.

Clinical monograph

How it works

Clotrimazole inhibits fungal cytochrome P450-dependent 14-alpha-demethylase, impairing ergosterol synthesis and disrupting the integrity and function of the fungal cell membrane.

Prescribing in practice

  • Continue treatment for the full recommended period and for a time after the rash clears to prevent relapse, as stopping early is a common cause of treatment failure.
  • It is for external use only and should be kept away from the eyes; the solution suits hairy or large areas while the cream suits localised lesions.
  • Clotrimazole can damage latex condoms and diaphragms, reducing their reliability.

Monitoring

No routine monitoring is needed; reassess if the rash has not improved after an adequate course or recurs.

Counselling the patient

  • Apply to the affected area and a margin of surrounding skin as directed, and keep using it for the full course even once the skin looks better.
  • Avoid contact with the eyes and stop if marked irritation or a rash develops.
  • Be aware it may weaken latex contraceptives.

Evidence & guidelines

Topical imidazoles such as clotrimazole are established first-line treatment for uncomplicated superficial fungal skin infections in UK practice.

Reference: NICE CKS Fungal Skin Infection; BAD Dermatophyte Infection Guidelines; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.

Pathways