Viagra and Levitra differ only minimally in terms of their structure, while Cialis differs markedly from Viagra and Levitra in terms of its molecular structure, which is also reflected in pharmacokinetic differences. medications and side effects Patent 6,362,178
Results in General ED Population — The primary US efficacy and safety trial included a total of 287 patients, with a mean age of 59 years (range 25 to 82 years). The population was 86% White, 6% Black, 6% Hispanic, and 2% of other ethnicities, and included patients with ED of various severities, etiologies (organic, psychogenic, mixed), and with multiple co-morbid conditions, including diabetes mellitus, hypertension, and other cardiovascular disease. Most (>96%) patients reported ED of at least 1-year duration.
There are no controlled clinical data on the safety or efficacy of vardenafil in the following patients; and therefore its use is not recommended until further information is available: unstable angina; hypotension (resting systolic blood pressure of <90 mmHg); uncontrolled hypertension (>170/110 mmHg); recent history of stroke, life-threatening arrhythmia, or myocardial infarction (within the last 6 months); severe cardiac failure.a.) Typical Dosage Recommendations viagra cost Viagra is not indicated for use in women. There are no adequate and well-controlled studies of sildenafil in pregnant women.Stop using Levitra and get emergency medical help if you have sudden vision loss.How does it work?Levitra is not indicated for use in pediatric patients. Safety and efficacy have not been established in this population.
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Switching from one of the oral medicines to another may be tried before proceeding to a more invasive or costlier treatment. However, there are few studies that show any one of the drugs being significantly more effective than another. cialis rx skin rash
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