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Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. It works by boosting the effects of nitric oxide, relaxing the smooth muscles of the arteries in the penis, allowing for increased blood flow and resulting in an erection. Read More Your chances of getting pregnant have not changed since the last time you asked.

The patent for Viagra (sildenafil) will not expire until 2012; therefore, no generic form is currently available. This can be harmful or prevent the drug from working well. The typical recommended starting dose of Levitra is 10 mg and dosages can range from 5 mg to 20 mg depending on desired response and adverse reactions. A: Although Viagra (sildenafil) does not directly interact with coumadin, Betapace (sotalol), Lanoxin (digoxin), or enalapril, it should be used cautiously in patients with underlying heart conditions.

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Jackson G "Treatment of erectile dysfunction in patients with cardiovascular disease : guide to drug selection." Drugs 64 (2004): 1533-45 27. These doses represent, respectively, about 20 and 40 times the Maximum Recommended Human Dose (MRHD) on a mg/m² basis in a 50 kg subject.

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It is not known if VIAGRA is safe and effective in women or children under 18 years of age. It is not recommended to mix one or more PDE5 inhibitors at the same time, as this can result in overdose.

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When they took the organ out they found it was extremely scared from the repeated inflammation. The radiobiology was characterized by in vivo irradiation of rat liver, dog liver, and dog brain. Next steps Based on these provocative results, future studies will evaluate the effects of Viagra on uterine blood flow changes during pregnancy, and "possible changes in other systems that contribute to normal fetal growth and development, such as placental transport and immune function," Osol says.Continued Among the antidepressants taken were Celexa, Effexor, Paxil, and Zoloft. There have been positive results regarding physical arousal, but in women with FSIAD, there was no increase in desire. When sexual stimulation causes local release of NO, inhibition of PDE5 by sildenafil causes increased levels of cGMP in the corpus cavernosum, resulting in smooth muscle relaxation and inflow of blood to the corpus cavernosum. It works by boosting the effects of nitric oxide, relaxing the smooth muscles of the arteries in the penis, allowing for increased blood flow and resulting in an erection. Patti Brown, PharmD Q: Is it safe to take Viagra?