what is in viagra that makes you hard?

Answer 1

Viagra or sildenafil relaxes muscles and increases blood flow to particular areas of the body

Answer 2

Viagra itself does not provide an erection. In your words, it doesn't make a man "hard". If a man limits the ability to be sexually aroused, viagra will not no anything for him.

Viagra helps in releasing sperm and seminal fluid from the prostate gland, known as ejaculation. When things are working properly, ejaculation is a three-step process: 1.The man becomes sexually aroused. 2.The penis responds by becoming erect. 3. Stimulation of the penis causes ejaculation.

Answer 3

Sildenafil is the active ingredient and it works by stimulating the parasympathetic nervous system since that's the one that's responsible for causing erection. Basically, the parasympathetic nerves release nitric oxide (a vasodilator), this increases the amount of blood in the penile tissue causing the erection.

Answer 4

Don't know, but I use it to counteract High Blood Pressure meds.
Change my life now for 3 years, but now I take predisone every day for the lower back.

Answer 5

Imagination.

Answer 6

hii..viagra hav sildenafil in it..in a salt form as sidenafil citrate.....it causes inhibition of a enzyme named as cyclic amp 5..wch is selectively found in penile vasculature walls...so this drug causes dilatation of venous sinuses in penis ..wch inturn causes more penile erection..n make u hard......well this drug can be harmfull in old age n if u r already a hypotensive...as it decreses blood prresure by dilation of vasculature.....n may cause painfull erection too known as priapism.....so..enjoy wid precautions....bye

Answer 7

I believe it is Yohimbine.

Answer 8

its all in your head, literally your brain .