Maintenance treatment of erectile impotence by cavernosal unstriated muscle relaxant injection.

Intracavernosal injection of phenoxybenzamine or papaverine has been tried on 127 men suffering from erectile impotence. In 113 of them it caused an erection which should have sufficed for coitus. Seventy-three men have used such injections, given at home by themselves or their wives, fortnightly or less often, to make coitus possible after each injection; 54 of them still do so.