WebMar 22, · Viagra and other PDE5 inhibitors basically work by “cutting the brakes” on your erection. With your body’s natural braking mechanism on hold, your body can .These include itraconazole Sporanox, Tolsura , ketoconazole Extina, Ketozole, others and ritonavir Norvir. Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take. They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. Stop taking VIAGRA and call your healthcare provider right away if you have any sudden vision loss sudden hearing decrease or hearing loss. Kidney disease that needs to be treated with dialysis.WebVIAGRA works for men with ED by increasing blood flow to the penis so you can get and keep an erection hard enough for sex.* VIAGRA only works when you are sexually . WebMar 22, · Viagra and other PDE5 inhibitors basically work by “cutting the brakes” on your erection. With your body’s natural braking mechanism on hold, your body can .Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take. These medicines are called PDE5 inhibitors. Oral medicine for ED also might not be safe or work well if you have: Very low blood pressure, called hypotension, or uncontrolled high blood pressure, called hypertension. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help. Recent heart or blood vessel problems.
