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Is emergency contraception safe and effective?

ANSWER

Yes, emergency contraception is safe. The pill forms have the same hormones that are in birth control pills, which women have been using for decades. Some of those pills don't need a prescription. The copper-T IUD (intrauterine device) is also a very effective, safe way to prevent a pregnancy after sex. Research shows that Plan B One-Step starts to lose its effectiveness in women heavier than 165 pounds. It's not recommend for anyone over this weight -- instead, a copper-T IUD is the suggested option.

SOURCES:

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.

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

KidsHealth: "IUD."

Office of Population Research at Princeton University: The Emergency Contraception Web Site: "Copper-T IUD as Emergency Contraception," "Side Effects."

Palo Alto Medical Foundation: The Intrauterine Device (IUD.)"

UpToDate: "Emergency Contraception," "Intrauterine Devices (IUDs)," "Levonorgestrel," "Long-term Methods of Birth Control," "Ulipristal.""Intrauterine Contraception."

PlanBOneStep.com.

MyNextChoiceOneDose.com.

Reviewed by Traci C. Johnson on June 07, 2018

SOURCES:

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.

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

KidsHealth: "IUD."

Office of Population Research at Princeton University: The Emergency Contraception Web Site: "Copper-T IUD as Emergency Contraception," "Side Effects."

Palo Alto Medical Foundation: The Intrauterine Device (IUD.)"

UpToDate: "Emergency Contraception," "Intrauterine Devices (IUDs)," "Levonorgestrel," "Long-term Methods of Birth Control," "Ulipristal.""Intrauterine Contraception."

PlanBOneStep.com.

MyNextChoiceOneDose.com.

Reviewed by Traci C. Johnson on June 07, 2018

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Is emergency contraception safe and effective?

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