Griseofulvin

DRUG INFORMATION

  ADULT
    - Adults: 0.5 g daily (125 mg four times a day., 250 mg twice a day, or 500 mg/day).
      Source: US FDA label for griseofulvin (Griseofulvin), section 'dosage and
      administration', retrieved 2026-08-29
    - Patients with less severe or 300 extensive infections may require less, whereas
      those with widespread lesions may require a starting dose of 0.75 g to 1.0 g/day.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'dosage and
      administration', retrieved 2026-08-29
    - Accurate diagnosis of the infecting organism is essential. Identification should
      be made either by direct microscopic examination of a mounting of infected tissue
      in a solution of potassium hydroxide or by culture on an appropriate medium.
      Medication must be continued until the infecting organism is completely eradicated
      as indicated by appropriate clinical or laboratory examination.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'dosage and
      administration', retrieved 2026-08-29

  CHILD
    - Safety and effectiveness in pediatric patients 2 years of age and younger have not
      been established. Safety in pediatric patients older than 2 years of age at
      dosages greater than 10 mg/kg daily has not been established.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'pediatric use',
      retrieved 2026-08-29
    - Accurate diagnosis of the infecting organism is essential. Identification should
      be made either by direct microscopic examination of a mounting of infected tissue
      in a solution of potassium hydroxide or by culture on an appropriate medium.
      Medication must be continued until the infecting organism is completely eradicated
      as indicated by appropriate clinical or laboratory examination.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'dosage and
      administration', retrieved 2026-08-29
    - Safety in pediatric patients older than 2 years of age at dosages greater than 10
      mg/kg daily has not been established.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'pediatric use',
      retrieved 2026-08-29

  RENAL IMPAIRMENT
    - No kidney-impairment dose in this label. Not a statement that none is needed.
      Source: Read and found silent: the US FDA label for griseofulvin (Griseofulvin),
      retrieved 2026-08-29

  HEPATIC IMPAIRMENT
    - No liver-impairment dose in this label. Not a statement that none is needed.
      Source: Read and found silent: the US FDA label for griseofulvin (Griseofulvin),
      retrieved 2026-08-29

  PREGNANCY
    - Teratogenic Effects: Pregnancy Category X: See CONTRAINDICATIONS and PRECAUTIONS,
      Drug Interactions .
      Source: US FDA label for griseofulvin (Griseofulvin), section 'pregnancy',
      retrieved 2026-08-29
    - Nursing Mothers: It is not known if griseofulvin is excreted in human milk.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'pregnancy',
      retrieved 2026-08-29
    - Because many drugs are excreted in human milk and because of the potential for
      tumorigenicity shown for griseofulvin in animal studies (see PRECAUTIONS,
      Carcinogenesis, Mutagenesis, Impairment of Fertility ), a decision should be made
      whether to discontinue nursing or to discontinue the drug, taking into account the
      importance of the drug to the mother.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'pregnancy',
      retrieved 2026-08-29

  BREASTFEEDING
    - It is not known if griseofulvin is excreted in human milk.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'nursing mothers',
      retrieved 2026-08-29
    - Because many drugs are excreted in human milk and because of the potential for
      tumorigenicity shown for griseofulvin in animal studies (see PRECAUTIONS,
      Carcinogenesis, Mutagenesis, Impairment of Fertility ), a decision should be made
      whether to discontinue nursing or to discontinue the drug, taking into account the
      importance of the drug to the mother.
      Source: US FDA label for griseofulvin (Griseofulvin), section 'nursing mothers',
      retrieved 2026-08-29