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What anti-fungal medications can affect birth control pills?

ANSWER

The two main ones to watch out for are griseofulvin (Gris-PEG) and ketoconazole (Extina, Nizoral, Xolegel).

Griseofulvin is used to treat skin infections like athlete's foot and jock itch. Ketoconazole is mainly used when other anti-fungal medicines aren't available or haven't worked.

Scientists believe the risk of anti-fungal meds affecting your birth control pills is low, so check with your doctor.

Reviewed by Nivin Todd on December 12, 2019

Medically Reviewed on 12/12/2019

SOURCES:

NAM Aidsmap: "Contraception."

Rodriguez M.D., Maria Isabel "What medications mess with birth control?" Bedsider.com

DeRossi, S.S. Dental Clinics of North America, October 2002.

McKinley Health Center, University of Illinois, "Pill Interactions With Other Drugs"

Weisberg, E. Clinical Pharmacokinetics, May 1999.

U.S. National Library of Medicine: "Griseofulvin," "Ketoconazole," "St. John's Wort," "Saw palmetto," "Garlic," "Alfalfa," "Flaxseed."
Doodipala, S. Expert Review of Clinical Pharmacology, March 1, 2010.

Epilepsy Foundation: "Women FAQ."

Robertson P. Clinical Pharmacology and Therapeutics, January 2002.

Narcolepsy UK: "All you need to know about modafinil and the pill."

Stanford Medicine: "Psychiatric Medications, Modafinil"

National Center for Complementary and Integrative Health: "Questions and Answers: A Trial of St. John's Wort (Hypericum perforatum) for the Treatment of Major Depression."

Hall, S.D. Clinical Pharmacology and Therapeutics, December 2003.

Reviewed by Nivin Todd on December 12, 2019

SOURCES:

NAM Aidsmap: "Contraception."

Rodriguez M.D., Maria Isabel "What medications mess with birth control?" Bedsider.com

DeRossi, S.S. Dental Clinics of North America, October 2002.

McKinley Health Center, University of Illinois, "Pill Interactions With Other Drugs"

Weisberg, E. Clinical Pharmacokinetics, May 1999.

U.S. National Library of Medicine: "Griseofulvin," "Ketoconazole," "St. John's Wort," "Saw palmetto," "Garlic," "Alfalfa," "Flaxseed."
Doodipala, S. Expert Review of Clinical Pharmacology, March 1, 2010.

Epilepsy Foundation: "Women FAQ."

Robertson P. Clinical Pharmacology and Therapeutics, January 2002.

Narcolepsy UK: "All you need to know about modafinil and the pill."

Stanford Medicine: "Psychiatric Medications, Modafinil"

National Center for Complementary and Integrative Health: "Questions and Answers: A Trial of St. John's Wort (Hypericum perforatum) for the Treatment of Major Depression."

Hall, S.D. Clinical Pharmacology and Therapeutics, December 2003.

Reviewed by Nivin Todd on December 12, 2019

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