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The physician called on to advise his patients with regard to birth control is constantly on the lookout for some method just as effective as but simpler in technic than the commonly accepted methods of vaginal diaphragm or condom used with an intravaginal jelly.
One such product, marketed now for several years, consists of a jelly which is forcibly blown into the vaginal vault by a special applicator. The jelly itself does not have an unusual formula, consisting of a gum tragacanth base, boric acid, sodium chloride, oxyquinoline sulfate, lactic acid and glycerin. It does not melt at body temperature. This very effective type of applicator "splashes" the jelly into the vicinity of the cervix, and in the advertising material a contrast medium picture shows the external os well plugged by jelly.
The theoretical consideration of such a method nearly convinces one of its simplicity and effectiveness. The product appears
Rodger JR. AN UNSUCCESSFUL METHOD OF BIRTH CONTROL. JAMA. 1939;113(16):1487–1488. doi:10.1001/jama.1939.72800410001010
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