Click here for an email preview. This results in the increase of cyclic guanosine monophosphate cGMP , which relaxes the smooth muscles and increases the flow of blood. What tests do you recommend? Some medications used to treat erectile dysfunction also might help premature ejaculation. Ans : Yes, if prescribed by your doctor then this drug can be taken in your twenties.The findings of this clinical trial revealed that dapoxetine/ sildenafil treatment can effectively ameliorate the PE and ED symptoms, without causing any clinically . rows · Dapoxetine is a selective serotonin reuptake inhibitor used in the treatment of premature ejaculation. Generic Name Dapoxetine DrugBank Accession Number. Comparison of the clinical efficacy and safety of the on-demand use of paroxetine, dapoxetine, sildenafil and combined dapoxetine with sildenafil in treatment of patients .