I recently tested the effects of Nitric Oxide on myself. I won't go into a lot of detail, but from my experience, it can most likely cure your Impotence. Nitric Oxide production is reduced, by as much as 50\\%, as we age. Acid reducers, such as antiacids and prescriptions, make it almost impossible for our bodies to create the Nitric Oxide we need.
The proof is in the pudding, You do your own experiment. Stop taking antiacids for a few days, and eat some fresh Beets, which are high in nitrates, and see the results for yourself. In the meantime, do some research on this.