First-lineCanesten

Clotrimazole

Imidazole antifungal (topical)

First-line for vulvovaginal candidiasis in pregnancy.

Topical pessaryTopical cream

First-line for

  • Vulvovaginal candidiasis (pregnancy)
  • Recurrent VVC maintenance

Mechanism

Disrupts fungal cell membrane by inhibiting ergosterol synthesis (CYP51).

“7-day cream in pregnancy, NOT oral fluconazole”

  • Topical safe T1–T3
  • Oral fluconazole = cardiac defects T1

Dosing

Pregnancy
100 mg pessary nightly x 7 nights
Cream
1% topical BD x 7 d

Contraindications

  • AbsoluteHypersensitivity to imidazoles

Side effects

  • Local burning
  • Vulval irritation

Fetal & maternal notes

  • Topical clotrimazole compatible across pregnancy
  • Avoid oral fluconazole in T1

Key interactions

  • Latex condoms

    Caution

    Cream degrades latex

Clinical pearls

  • 💡 Use 7-day course in pregnancy (vs 1-day non-pregnant)
  • 💡 Counsel: avoid oral azoles unless severe

Content last reviewed: REPLACE_ME (e.g. 2026-07)

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For educational use only

Not medical advice. Verify dosing against the BNF and your local trust guidelines before prescribing.