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How should I take emergency contraceptives alongside supplements or medications?

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Some drugs and supplements, such as the epilepsy drug Dilantin, antibiotics such as rifampicin or griseofulvin, and St. John's wort, can stop emergency contraception pills from working right to prevent pregnancy. Tell your doctor or pharmacist about other drugs and supplements you take.

SOURCES:

American Society for Emergency Contraception: "The Cost of Emergency Contraception: Results from a Nationwide Survey."

Anne Elizabeth Burke, MD, associate professor of gynecology and obstetrics, director of family planning, Johns Hopkins School of Medicine.

Kelly Cleland, MPA, MPH, researcher, Office of Population Research, Princeton University.

FDA: "FDA approves Plan B One-Step emergency contraceptive for use without a prescription for all women of child-bearing potential."

Alexandra Gold, MD, fellow in family planning, Johns Hopkins School of Medicine.

HealthyChildren.org: "Emergency Contraception."

Office of Population Research at Princeton University: The Emergency Contraception Web Site: "Effectiveness," "Safety."

Healthy Canadians web site.

UpToDate.com: "Emergency Contraception." "Intrauterine Contraception."

PlanBOneStep,com.

MyNextChoiceOneDose.com.  

Reviewed by Traci C. Johnson on June 07, 2018

SOURCES:

American Society for Emergency Contraception: "The Cost of Emergency Contraception: Results from a Nationwide Survey."

Anne Elizabeth Burke, MD, associate professor of gynecology and obstetrics, director of family planning, Johns Hopkins School of Medicine.

Kelly Cleland, MPA, MPH, researcher, Office of Population Research, Princeton University.

FDA: "FDA approves Plan B One-Step emergency contraceptive for use without a prescription for all women of child-bearing potential."

Alexandra Gold, MD, fellow in family planning, Johns Hopkins School of Medicine.

HealthyChildren.org: "Emergency Contraception."

Office of Population Research at Princeton University: The Emergency Contraception Web Site: "Effectiveness," "Safety."

Healthy Canadians web site.

UpToDate.com: "Emergency Contraception." "Intrauterine Contraception."

PlanBOneStep,com.

MyNextChoiceOneDose.com.  

Reviewed by Traci C. Johnson on June 07, 2018

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How should I take emergency contraceptives if I have health problems?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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