Substance responsible for erection of penis -: (A) Clomipramine, (B) Papaverine, (C) Buspirone, (D) Amitriptyline
Answer is B. Ans. is 'b' i.e., Papaverine Papaverineo It is a nonspecific phosphodiesterase inhibitor.o Injection of papaverine with or without phentolamine into corpus cavemosum produces penile tumiscence to permit intercourse.o Repeated injection can cause penile fibrosis.