Abstract: The treatment of erectile dysfunctions in mammals, including humans, comprises administering to a host in need thereof an effective dose of linsidomine or a pharmacologically compatible salt thereof, alone or in combination with adenosine, vitamins, prostaglandins, calcium antagonists, .alpha.-receptor blockers and/or smooth muscle relaxants. Also disclosed is a disposable medicament pack containing in a sterile package a disposable syringe containing a dose unit of an erection-promoting active substance or of a combination of active substances, sterile swabs provided with disinfectants, and instructions for use.