Erectile dysfunction prescription drugs

When a man can't get an erection to have sex or can't keep an erection long enough to finish having sex, it's called erectile dysfunction. Erectile dysfunction is the preferred term rather than the more commonly used term of impotence. Sexual dysfunction is often associated with disorders such as diabetes, hypertension, coronary artery disease, neurologic disorders, and depression. In some patients, sexual dysfunction may be the presenting symptom of such disorders. Additionally, ED is often an adverse effect of many medications.

Although there are a number of options available for non-surgical treatment of sexual dysfunction, it is clear that oral therapy has revolutionized the treatment approach to patients with erectile dysfunction. Currently there are 3 phosphodiesterase enzyme inhibitors that are used to treat erectile dysfunction: sildenafil citrate (Viagra), vardenafil HCl (Levitra) and tadalafil (Cialis). These medications do not directly cause an erection of the penis, but they alter the body's response to sexual stimulation by enhancing the effect of the nitric oxide, a chemical that is normally released during stimulation. Nitric oxide causes relaxation of the muscles in the penis, which allows for better blood flow to the penile area.

The Food and Drug Administration (FDA) approved Viagra in 1998, and it became the first oral medication for erectile dysfunction on the market. Vardenafil Hydrochloride (Levitra) was approved in September, 2003, and Tadalafil (Cialis) was approved in November, 2003. Viagra, Levitra and Cialis work in much the same way. These medications share many similarities, but they have differences as well.

Comparison of erectile dysfunction drugs: PDE-5 inhibitors - differences in onset and duarations of action, side effects, effectiveness.

Phosphodiesterase Enzyme Inhibitors Comparison

Viagra	Viagra works up to 4.5 - 5 hours	Viagra is taken 60 minutes before sex	Side effects are similar - up to 10% of users experience headache, red face	Viagra tablets are easier to split
Levitra	Levitra works for up to 5 hours	Levitra is taken 25 - 60 minutes before sex	Side effects are similar - up to 10% of users experience headache, red face	Levitra is reported to be more effective for diabetics
Cialis	Cialis works for up to 36 hours	Cialis is taken 20 - 60 minutes before sex	Side effects are similar - up to 10% of users experience headache, red face	Cialis is reported to be more effective for diabetics

Oral medications used to treat erectile dysfunction are available by prescription only.

Price-RX.com offers you price comparison of the following sexual dysfunction prescription drugs used to treat erectile dysfunction:

Medication	Quantity	Price	Shipping	Order
Cialis 20 mg	5 tablets	$116	$18
Cialis 20 mg	10 tablets	$181	$18
Cialis 20 mg	15 tablets	$252	$18
Cialis 20 mg	20 tablets	$322	$18
Levitra 10 mg	5 tablets	$115	$18
Levitra 10 mg	10 tablets	$175	$18
Levitra 10 mg	15 tablets	$225	$18
Levitra 10 mg	20 tablets	$279	$18
Levitra 20 mg	5 tablets	$115	$18
Levitra 20 mg	10 tablets	$165	$18
Levitra 20 mg	15 tablets	$225	$18
Levitra 20 mg	20 tablets	$279	$18
Viagra 100 mg	10 tablets	$169	$18
Viagra 100 mg	15 tablets	$229	$18
Viagra 100 mg	20 tablets	$289	$18