I am at the end of the tunnel when it's time for love making. Meaning I cannot have an erection. Which over the counter drug is the best. Like Swissmiss etc.

Salimdost - If you've tried products without success, and are now under the care of a urologist, then getting another over the counter product is just going to waste your money.

You may find it helpful to have a better understanding of the causes, tests and treatments for erectile dysfunction so you can work with your urologist to get the best treatment possible. Here's information from the Mayo Clinic to help you: http://www.mayoclinic.com/health/erectile-dysfunction/ds00162

As with most health conditions, it may take a while to figure out exactly what's caused your erectile dysfunction and to find the right treatments. It sounds like your doctor's doing his part, and that part of the process on your end is trying the injections he's prescribed. The article will help you better understand why he's prescribed them and other options that are available to you.

Good luck, Pat