How Viagra Works – viagra how it works

One of the messengers released when you’re aroused is called cyclic GMP. People who have had a heart attack or stroke in the last six months. Other contraindications include hypersensitivity to any component of the formulation, pulmonary veno-occlusion, left ventricular outflow obstruction, PAH associated with sickle cell anemia, and multiple system atrophy. You need to be sexually excited for it to work. Describe the clinically important drug interactions of sildenafil.Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the . About sildenafil (Viagra) Sildenafil is a medicine used to treat erection problems (erectile dysfunction). Sildenafil is also sometimes used to treat pulmonary hypertension (high blood pressure in the blood vessels that supply the lungs). If you have erection problems sildenafil works by temporarily increasing blood flow to your penis when. 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 essentially get out of its own way, and an erection is much easier to attain and sustain. Viagra is effective for the majority of men who try it.