cialis super active 20mg pills Viagra (sildenafil) belongs to a class of medications, known as phosphodiesterase inhibitors, which are indicated for the treatment of erectile dysfunction in men. Other phosphodiesterase inhibitors include Levitra (vardenafil) and Cialis (tadalafil). These medications are not necessarily different types of Viagra, but treatment alternatives. Viagra, commonly referred to as the "little blue pill" was the first erectile dysfunction medication to be approved by the U.S. Food and Drug Administration (FDA). By inhibiting phosphodiesterase, Viagra enhances the effect of nitric oxide allowing for smooth muscle relaxation and increasing blood flow to specific areas of the body in the presence of sexual arousal or stimulation. Viagra exhibits no therapeutic responses in the absence of sexual stimulation. Possible side effects associated with treatment with Viagra include flushed skin, nausea or abdominal pain, congestion in the nose, diarrhea, vision clouded with a blue tint, headache and digestive problems.
For ED the recommended dose is 50 mg taken one hour before sexual activity, but Viagra can be taken anywhere from 30 minutes to four hours in advance. Viagra should not be taken more than once a day.
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ONCE-A-DAY DOSING FOR ERECTILE DYSFUNCTION AND/OR URINARY SYMPTOMS ASSOCIATED WITH BENIGN PROSTATE HYPERPLASIA72 users found this comment helpful. Did you? Yes No Report as inappropriate
blood pressure is unusually high or low or is not effectively treated why is viagra so expensive PHOTOS: S&M movie scenes VIAGRA was shown to potentiate the hypotensive effects of nitrates and its administration in patients who use nitric oxide donors such as organic nitrates or organic nitrites in any form is therefore contraindicated [see Contraindications (4.1), Drug Interactions (7.1), and Clinical Pharmacology (12.2)].Indications and Usage for Levitra
Tadalafil is also manufactured and sold under the name of Tadacip by the Indian pharmaceutical company Cipla in doses of 10 mg and 20 mg.
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