compare viagra to cialis

compare viagra to cialis

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(sildenafil citrate)
Tablets
compare viagra to cialis : DESCRIPTION

compare viagra to cialis, an oral therapy for erectile dysfunction, is the citrate salt of sildenafil, a selective
inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5).
Sildenafil citrate is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1Hpyrazolo[
4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate and has the
following structural formula:

compare viagra to cialis ( Sildenafil citrate )is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in
water and a molecular weight of 666.7. compare viagra to cialis (sildenafil citrate) is formulated as blue,
film-coated rounded-diamond-shaped tablets equivalent to 25 mg, 50 mg and 100 mg of
compare viagra to cialis sildenafil for oral administration. In addition to the active ingredient, compare viagra to cialis sildenafil citrate, each tablet
contains the following inactive ingredients: microcrystalline cellulose, anhydrous dibasic calcium
phosphate, croscarmellose sodium, magnesium stearate, hypromellose, titanium dioxide, lactose,
triacetin, and FD & C Blue #2 aluminum lake.
CLINICAL PHARMACOLOGY

viagra

compare viagra to cialis Mechanism of Action
The physiologic mechanism of erection of the penis involves release of nitric oxide (NO) in the
corpus cavernosum during sexual stimulation. NO then activates the enzyme guanylate cyclase,
which results in increased levels of cyclic guanosine monophosphate (cGMP), producing smooth
muscle relaxation in the corpus cavernosum and allowing inflow of blood. compare viagra to cialis Sildenafil has no
direct relaxant effect on isolated human corpus cavernosum, but enhances the effect of nitric
oxide (NO) by inhibiting phosphodiesterase type 5 (PDE5), which is responsible for degradation
of cGMP in the corpus cavernosum. When sexual stimulation causes local release of NO,

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