Viagra works by decreasing male impotence symptoms, which can help the user get and maintain an erection. Viagra or Sildenafil is designed to help men quickly get and maintain an erection. Sildenafil is the active ingredient found in Viagra, and it hinders the PDE5 enzymes giving a signal for the body to increase blood flow into the penile tissues resulting in an erection. https://kamahealth.ca/blog/what-does-viagra-sildenafil-do/ https://kamahealth.ca/