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Viagra vs Cialis vs Levitra

Name Generic Viagra
Sildenafil Citrate
Generic Levitra
Vardenafil HCl
Generic Cialis
Tadalafil
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Inactive Ingredients microcrystalline cellulose, anhydrous dibasic calcium phosphate, magnesium stearate, croscarmellose sodium, hypromellose, lactose, triacetin, titanium dioxide, and FD & C Blue #2 aluminum lake microcrystalline cellulose, crospovidone, magnesium stearate, hypromellose, colloidal silicon dioxide, yellow ferric oxide, polyethylene glycol, titanium dioxide, and red ferric oxide croscarmellose sodium, hypromellose, lactose monohydrate, iron oxide, magnesium stearate, hydroxypropyl cellulose, microcrystalline cellulose, sodium lauryl sulfate, titanium dioxide, talc, and triacetin
Drug Class PDE5 inhibitor PDE5 inhibitor selective inhibitor of cyclic guanosine monophosphate (cGMP) -
specific PDE5
Dosage 25 mg, 50 mg, 100 mg 2.5 mg, 5 mg, 10 mg, 20 mg daily use: 2.5 mg, 5 mg
36-hour pill: 5 mg, 10 mg, 20 mg
Administration Orally, with or without food Orally, about 60 minutes before sexual activity; with or without food Orally, with or without food
Effect Takes effect in about 30 minutes
Lasts approximately for 4 hours
Takes effect in about 30 minutes
Lasts approximately for 5 hours
Takes effect in about 15 minutes
Lasts approximately for 36 hours
Indications Erectile dysfunction (ED)
and pulmonary arterial hypertension (PAH)
Erectile dysfunction (ED) Erectile dysfunction (ED)
benign prostatic hyperplasia (BPH)
Description

Represents a blue, film-coated tablet in a round and diamond-like shape. It is a prescription medication used for male impotence treatment.


It works by increasing blood flow to a man's penile area and by doing so helping a man to get and/or maintain erection.


It does not cure the condition of ED.


It produces effect only if a man is sexually aroused.


It is not recommended for people with heart conditions.

Represents a round orange tablet and it is a prescription medication used for ED treatment in men.


It functions by affecting amount and strength of a blood flow in a penis. This leads to the latter becoming erect.


It does not treat ED.


It works only when a man is already aroused.


It should not be taken by people with heart problems.


It should not be taken more than once a day; and not until 24 hours passed from the last administration.

Represents a yellow, film-coated tablet, in an almond-like shape. It is a prescription medication used for ED treatment in men.


It works by relaxing arteries and muscles of the penile tissues and increasing penile blood flow; which leads to erection.


It does not cure ED.


It is not the means of stimulation and is effective is arousal has already taken place.


It is not a protection from STDs and HIV.