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mxmantv Levitra - Clinical PharmacologyCIALIS and other treatments for erectile dysfunctionSildenafil citrate is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate and has the following structural formula:

This leaflet summarizes the most important information about Levitra. If you would like more information, talk with your healthcare provider. You can ask your doctor or pharmacist for information about Levitra that is written for health professionals. buying cialis

Unfortunately, Viagra is a medication known to cause quite a few side effects, some of them quite serious. What is encouraging, however, is the fact that most people suffer from only the least serious side effects of Sildenafil, which include flushing, nasal congestion, minor vision and metabolism impairments. Severe side effects are observed in extremely rare cases and may include heart attack or stroke, sudden hearing loss, priapism and arrhythmia. If you experience any symptoms of the latter after taking Viagra, seek emergency medical assistance immediately.

increased erection buying levitra online Table 11: Mean Endpoint and Change from Baseline for the Primary Efficacy Variables in the Two Primary US Trials Study A Study B these symptoms, stop taking VIAGRA and contact a doctor right away

an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis.fatigue, pain in or around the eyesViagra? is taken by mouth as needed between four hours and one-half hour before sexual activity (about one hour before is most effective). Take Viagra? only as directed, usually once daily as needed. Sildenafil works along with sexual stimulation to help achieve an erection.