Contraception: The Three-Month Injection

Miss a day with the conventional birth control pill and maternity may result. Researchers—not to mention users—have long hoped for something with a longer-lasting effect. Now the Upjohn Co. believes that its drug Depo-Provera may be the answer. It has been used for treatment of uterine disorders, but one of its side effects proved to be infertility lasting a year or more. This is understandable, since the drug's basic ingredient is a synthetic female hormone that is also the main component of Upjohn's birth control pills. Last week the company announced that it will begin marketing Depo-Provera for long-term birth...

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