Add time:08/16/2019         Source:sciencedirect.com

A combination of quinestrol, a long-acting estrogen, and quingestanol acetate, a progestin, given by mouth once every four weeks was found to be an effective contraceptive in 303 healthy, fertile women for 2,493 cycles. Menstrual cycle control was good with normal amount of flow and normal or slightly increased duration of flow. Withdrawal bleeding usually began 7 to 14 days after administration of quinestrol-quingestanol. Undesirable effects were similar in type and frequency to those reported for conventional oral contraceptives.

We also recommend Trading Suppliers and Manufacturers of Quingestanol (cas 10592-65-1). Pls Click Website Link as below: cas 10592-65-1 suppliers