I presently am taking one Demopressin Acatate 0.2 mg pill just before going to bed at night, which my doctor prescribed to slow down the number of trips I make to the bathroom to urinate. I have an enlarged prostate. My question is: If I continue taking this pill, will it affect me sexually, that is, will it affect any erection I get or cause what is called a dry orgasim ? I was scheduled recently for a procedure called Greenlight Procedure , which noted such a side effect.