Gynecology: The Pills: More Effective, And More of Them

Last week, with newly announced approval by the Food and Drug Administration of three more oral contraceptives, American women and their doctors had a total of six to choose from.

By federal law, all are available on prescription only. They are:

> Enovid, the longest on the market, made by Chicago's G. D. Searle & Co. in large-dose tablets.

> Enovid-E, just released, a miniaturized version of Enovid.

> Ortho-Novum (Johnson & Johnson's subsidiary, Ortho Pharmaceutical Corp.), on the market since 1962 in a full-dose tablet.

> Ortho-Novum-2, a reduced-dose form on sale since last fall....

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