Others respond to the almost painless injection of papaverine, phentolamine, prostaglandin E1, or all three, into the body of the penis before intercourse. The urologist gives the first injection and shows how painless it is. Some men respond to local nitroglycerine on the penis, but others get headaches or faint. Other men produce an erection with a vacuum apparatus and maintain it with a rubber band. A couple with this problem can do a lot to help themselves.
Libraries are now full of information on sexual function.
Many men know more about their cars than they do about their own or their wives' bodies. Many women read romance novels when they might bring romance into their own marriages. Fulfillment is more difficult than in your twenties, but the rewards are just as great. The worst response is to consider the situation hopeless. Impotence is not a normal part of aging.