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Physicians should inform patients not to take Viagra with other PDE5 inhibitors including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil. Sildenafil is also marketed as REVATIO for the treatment of PAH. The safety and efficacy of Viagra with other PDE5 inhibitors, including REVATIO, have not been studied [see Warnings and Precautions (5.7)].Penile prosthesis

For more information about the various options for treating erectile dysfunction, check out “Drugs and Devices for Erectile Dysfunction.”If you take too much, you are more likely to experience side effects. viagra 100 mg duration Do not take Viagra if the packaging is torn or shows signs of tampering, or does not look quite right even if the tablets may look alright. Medicines are sometimes prescribed for conditions other than those described in patient information leaflets. Do not use LEVITRA for a condition for which it was not prescribed. Do not give LEVITRA to other people, even if they have the same symptoms that you have. It may harm them.27. Arruda-Olson AM, Mahoney DW, Nehra A, Leckel M, Pellikka PA "Cardiovascular effects of sildenafil during exercise in men with known or probable coronary artery disease: a randomized crossover trial." JAMA 287 (2002): 719-25

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