CSD500

CSD500 is an erectogenic condom developed by Futura Medical and licensed to Reckitt Benckiser for sale under the Durex brand, most notably as Durex Blue Diamond. The product is a medical device that incorporates a proprietary vasodilator gel called Zanifil, which contains the active ingredient glyceryl trinitrate (nitroglycerin), within the tip of the condom. Upon application, the gel is absorbed through the skin of the penis, acting as a nitric oxide donor to stimulate local vasodilation and increase blood flow. This mechanism is designed to help men maintain firmer, larger, and longer-lasting erections during intercourse, potentially encouraging condom use for contraception and the prevention of sexually transmitted infections. CSD500 has received CE mark approval in Europe and is marketed in several regions, including the Middle East and North Africa.

Brand names

Durex Blue Diamond

Other names

ZanifilErectogenic Condom