From a practical point of view, a VED is one of the best ED treatments available. It's very effective, works for almost everybody, and is very inexpensive over the long haul. There are no serious side effects when used properly, and it can be utilized whenever an erection is desired. About half of the men who purchase the device like it and keep using it. Some pump users complain that their penis feels numb, or that it becomes discolored, misshapen, and cold to the touch.
Many couples complain about the interruption of intimacy it brings to lovemaking.
Also, some men complain that the constriction ring at the base of the penis causes mild discomfort upon ejaculation or varying degrees of ejaculation impairment. Penile Injection Therapy Backgrounder - Penile injection therapy was discovered fortuitously. In 1980, the French physician Ronald Virag reported that during penile surgery, he inadvertently injected an anesthetized patient in the wrong part of the penis with papaverine - a substance derived from the opium poppy. The resulting relaxation of the smooth muscle of the penile arterial walls created an unexpected two-hour erection. Around the same time, Giles Brindley, a British physiologist and research scientist, discovered that injecting the drug phenoxybenzamine into the corpora cavernosa of the penis could produce an erection within minutes.