The US Food and Drug Administration recently approved the marketing of a cervical cap (Prentif Cavity-Rim Cervical Cap - Lamberts Ltd, England), a contraceptive device that has been used in one form or another for many years (JP Koch, Contraception, 25:161, 1982). The cap is being distributed in the USA and Canada by Cervical Cap (CxC), Ltd, PO Box 38003-292, Los Gatos, CA 95031, telephone 408-358-6264; the distributor will make the caps available only to practitioners who have attended training seminars.

The FDA recently approved Skyla (Bayer), the first new intrauterine device (IUD) in the US in 12 years. It releases levonorgestrel, a synthetic progestin, over a period of 3 years. A table summarizing contraceptive methods available in the US appears on page 22.

The FDA has approved Phexxi (Evofem), a nonhormonal prescription-only vaginal gel containing lactic acid, citric acid, and potassium bitartrate, for prevention of pregnancy. The gel is intended for on-demand contraception; it is not effective when used after intercourse. It was previously approved for use as a vaginal lubricant (Amphora), but was never marketed.

Acesulfame potassium (Sunette - Hoechst), an oxathiazinondioxide, was recently approved by the US Food and Drug Administration (FDA) for use as a non-caloric table-top sweetener and as an ingredient in chewing gum, powdered beverages, gelatins and puddings. The other non-caloric artificial sweeteners available in the USA are saccharin (Sweet 'N Low; and others) and aspartame (NutraSweet; Equal) (Medical Letter, 24:1, 1982).

Intrauterine devices (IUDs) and the etonogestrel implant are the most effective reversible contraceptive methods available. Hormonal oral contraceptives, patches, rings, and injectables are also effective in preventing pregnancy. When used alone, barrier and behavioral methods generally have higher failure rates than other methods (see Table 1). Selection of a contraceptive method is usually based on patient-specific factors and personal preference