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There have been postmarketing reports of bleeding events in patients who have taken Viagra. A causal relationship between Viagra and these events has not been established. In humans, Viagra has no effect on bleeding time when taken alone or with aspirin. However, in vitro studies with human platelets indicate that sildenafil potentiates the antiaggregatory effect of sodium nitroprusside (a nitric oxide donor). In addition, the combination of heparin and Viagra had an additive effect on bleeding time in the anesthetized rabbit, but this interaction has not been studied in humans. viagra 100mg Discuss with patients the appropriate use of Levitra and its anticipated benefits. It should be explained that sexual stimulation is required for an erection to occur after taking Levitra. Levitra should be taken approximately 60 minutes before sexual activity. Patients should be counseled regarding the dosing of Levitra especially regarding the maximum daily dose. Patients should be advised to contact their healthcare provider for dose modification if they are not satisfied with the quality of their sexual performance with Levitra or in the case of an unwanted effect. Placebo
?tell your doctor and pharmacist if you are allergic to sildenafil, any other medications, or any of the ingredients in sildenafil products. Ask your pharmacist for a list of the ingredients.Viagra (sildenafil) is only available in dosages of 25, 50, and 100 mg. The maximum dosage is 100 mg, therefore, you would not want to increase beyond this dosage. The following website has additional information on Viagra:
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