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Be very cautious about purchasing a drug claiming to be the generic. Viagra works by inhibiting the chemical phosphodiesterase, which leads to an increase in the effect of nitric oxide. Female Viagra takes about forty-five minutes to take effect and the effects last for four to six hours. A: Viagra (sildenafil) is a prescription medication used to treat erectile dysfunction. These include different dosages ranging from Cialis Daily (2.

Matt Curley, PharmD Q: Is there a generic for Viagra? PDE5 inhibitors, including VIAGRA, and alpha-adrenergic blocking agents are both vasodilators with blood pressure lowering effects.

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Viagra can decrease blood supply to the optic nerve, causing sudden vision loss. By taking Viagra on an empty stomach, the effects could start sooner Alcohol. Dosage Adjustments Due To Drug Interactions Ritonavir The recommended dose for ritonavir-treated patients is 25 mg prior to sexual activity and the recommended maximum dose is 25 mg within a 48 hour period because concomitant administration increased the blood levels of sildenafil by 11-fold [see WARNINGS AND PRECAUTIONS, DRUG INTERACTIONS, and CLINICAL PHARMACOLOGY]. Therefore, PDE5 inhibitors, including VIAGRA, should be used with caution in these patients and only when the anticipated benefits outweigh the risks. Examples of these drugs include: HIV drugs, such as ritonavir, indinavir, saquinavir, or atazanavir. One-third to one-half of the subjects in these studies reported successful intercourse at least once during a 4-week, treatment-free run-in period.

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This is not a complete list of the side effects associated with Viagra. Consult your physician or healthcare provider for specific recommendations on potential alternatives to Viagra treatment. Food and Drug Administration (FDA), for the treatment of erectile dysfunction.

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The following website has additional information on Viagra: www.everydayhealth.com/drugs/viagra Q: With Viagra costing so much, what is a good, safe, effective alternative? This sexual ambivalence is what we have inherited from the Puritans. Store VIAGRA at room temperature between 68°F to 77°F (20°C to 25°C). All you have to pay is shipping costs and you will receive a free Viagra ED trial pack. VIAGRA can cause your blood pressure to drop suddenly to an unsafe level if it is taken with certain other medicines. Grapefruit and grapefruit juice should be avoided, as enzymes in the fruit can stop Viagra from working altogether. Chocoholic Miss DubaiForums 2005 Posts: 12833 Reply Re: Viagra - HELP! This finding is consistent with the inhibition of PDE6, which is involved in phototransduction in the retina. Webster LJ, Michelakis ED, Davis T, Archer SL "Use of sildenafil for safe improvement of erectile function and quality of life in men with New York Heart Association classes II and III congestive heart failure: a prospective, placebo-controlled, double-blind crossover trial." Arch Intern Med 164 (2004): 514-20 15. Viagra has a host of close relatives such as Cialis (tadalafil) and Levitra (vardenafil), which offer similar effects. Among the roughly equal control group, just three babies had lung problems and none died. I am a 61-year-old male who had a prostate operation two years ago. This decrease was seen at one to two hours after taking the medication.