There is provided a condom having a coating or deposit of a composition which includes a physiologically-active agent such as glyceryl trinitrate, wherein the condom has been treated with a neutralising or acidic material such that the condom, when immersed in water, results in the water having a pH of 7 or less. The condom may be treated with an acidic slurry of dusting powder. Also provided is a process for the manufacture of condoms, in which the process includes the steps of: 1) treating the formed condoms with a neutralising or acidic material and 2) thereafter applying to the condoms a composition including a physiologically-active agent such as glyceryl trinitrate, wherein the condoms, when immersed in water, results in the water having a pH of 7 or less.提出一種保險套具有包括生理活性劑諸如三硝酸甘油酯之組成物之塗覆物或沈積物,其中該保險套已經使用中性或酸性材料處理使得該保險套當浸沒於水中時致使水具有7或以下之pH。該保險套可使用撒布劑之酸性料漿處理。也提出一種保險套之製法,其中該方法包括下列步驟:1)使用中性或酸性材料處理該經成型的保險套;及2)其後至該等保險套施用包括生理活性劑諸如三硝酸甘油酯之組成物,其中該等該保險套當浸沒於水中時致使水具有7或以下之pH。