DHEA is a hormone with an established benefit in increasing libido, improving elections, and improving volume of ejaculated, especially for those over 50.
Start with 50 MG a day.
Some individuals have discomfort.
If not, increase to 250 MG a day in divided doses.
Some males do not improve elections with sildinefil. This study found supplements of B-12 and folic acid prior to using sildinifil for six weeks will produce superior elections for those resistant to sildinifil alone.