What are the side effects of Sildenafil? It is also used for the treatment of pulmonary arterial hypertension. How much Sildenafil is too much? Penis deformation: As with other medications for erectile dysfunction, men with an anatomical deformation of the penis such as angulation, cavernosal fibrosis, or Peyronie’s disease should be closely monitored by their doctors if they take this medication. Amazing service We’re Here for You Our pharmacists are happy to answer your questions. This rare condition is more likely to occur if you have heart disease, high blood pressure, High Cholesterol, Diabetes, or eye problems, are more than 50 years old, or if you smoke.Erectile dysfunction refers to the inability of a man to get or maintain an erection firm enough for satisfying sexual activity. ED can have a negative impact on the emotional . Every generic used in Canada has the same medical ingredients as their brand name counterpart and is considered bioequivalent to the brand name medication. The quality . The medication Viagra is manufactured by Pfizer Canada Inc and it comes in 25 mg, 50 mg and mg dosage forms in a blister pack of 4 tablets. We are supplying brand Viagra .