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. Blood pressure may suddenly drop to life-threatening levels if Viagra Sildenafil is taken with any nitrate-containing medication e. Generic vs. Kidney Disease or reduced kidney function may cause Viagra Sildenafil to build up in the body, causing side effects. Depending on your specific circumstances, your doctor may want you to: stop taking one of the medications, change one of the medications to another, change how you are taking one or both of the medications, or leave everything as is.Best Low Cost: GoodRx Fastest Delivery: Blink Health: Sesame Sign Up Now Key Specs Cost: Consultation prices vary based on the prescriber; $5 generic prescriptions Medical . Buy Viagra Online in Canada Get your Viagra delivered at your door for FREE Available Form: tablet Manufacturer name: upjohn canada ulc Generic name: sildenafil Strength: . There’s only one way to get brand name VIAGRA — by asking for it by name when filling your prescription at the pharmacy. VIAGRA, still here. And virtually the same price as .