Lack of Studies on Plan B's Effect on Young Girls Concerns Medical Groups

Most medical groups support OTC access to Plan B for all ages, but some say the research is lacking.

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Plan B is intended only for emergency use, but some worry teens might use it more often.

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"We know from repeated reviews there are girls on birth control and have been for years, and they have had no untoward effects," she says. "This isn't that different." The birth control pill and Plan B both contain the hormone progesterone, but Plan B includes it at higher levels.

Breuner also points out that the FDA approves a number of medications before having conducted studies that involve repeated observations of the same thing – such as a woman's fertility – over a long period of time.


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