viagra effects timeline the prince family viagra prank how to.use viagra how strong is 20mg sildenafil amex cialis great britain is it safe to take two 50mg viagra at one time viagra with alcohol side effects sildenafil es igual que el viagra order canada cialis soft can i take both cialis and viagra fast delivery generic cialis viagra came out in what year cialis viagra sildenafil citrate images sildenafil gel oral pharmalife sale viagra tablets usa sildenafil 100mg abz half viagra how much is cialis in thailand taking two cialis roman sildenafil viagra prescribing information viagra sildenafil kaufen how often can you take viagra safely generic sildenafil prescription Viagra Dosage, Uses, and Safety Information

VIAGRA is supplied as blue, film-coated, rounded-diamond-shaped tablets containing sildenafil citrate equivalent to 25 mg, 50 mg, or 100 mg of sildenafil. Tablets are debossed with PFIZER on one side and VGR25, VGR50 or VGR100 on the other to indicate the dosage strengths. Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of 100 mg or decreased to 25 mg. Sildenafil is a phosphodiesterase type 5 (PDE-5) inhibitor. It blocks the action of the enzyme PDE-5, which destroys cyclic guanosine monophosphate (cGMP). An increase in cGMP levels leads to relaxation of the smooth muscles in the penis and increased blood flow, which contributes to an erection.

If you have to take it close to eating, make sure you avoid high-fat meals. Never take more than one tablet at a time or take more than one in a 24-hour period. Bear in mind that Sildenafil, and all other ED tablets, will only work if you become sexually aroused