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levitra vs viagra Indigestion. Dizziness was reported in about 2% of patients. A small number of patients taking Levitra also reported abnormal vision. Before taking Levitra levitra vs viagra, patients are advised to undergo a thorough medical history and physical examination to diagnose the underlying cause of the erectile dysfunction and to identify appropriate treatment. Levitra confers no protection against AIDS or other sexually transmitted diseases. Levitra is manufactured by Bayer Corporation in Germany and will be distributed by Glaxo Smith Kline. The drug is currently available in Europe. Based on FDA Talk Paper T03-63 levitra vs viagra, August 19 levitra vs viagra, 2003 (www.fda.gov) Printer-Friendly Format Email to a levitra vs viagra.
levitra vs viagra Friend Last Editorial Review: 7 7 2004 MedicineNet provides reliable doctor produced health and medical information. Browse Topics Allergies Alzheimer's Arthritis Asthma Blood Pressure Cancer Cholesterol Chronic Pain Cold & Flu Crohn's Disease Depression Diabetes Dictionary Digestion Disease Prevention Eyesight Healthy Kids Hearing & Ear Heart Hepatitis C HIV AIDS Lung Cond. Medications Menopause Men's Health Mental Health Migraine Osteoporosis Rheumatoid Arthritis Senior Health Skin Sleep Thyroid Women's Health 650+ More Topics Visit TheMen's Health Home Page Top 1 Erectile: The Race to Erection - Levitra vs Viagra Related Articles Impotence (ED) Men's Health Topics Osteoporosis STD's in Men Erectile Dysfunction Blood in Semen Prostate Cancer Sexual Problems News via RSS Ask the Experts Daily Health News Handsome Doctors in the Operating Room Pet Owners Put Pets on Xmas Gift List Misletoe for Cancer? Maybe Not Botox Soothes Writer's Cramp Avoiding Common Holiday Dangers Health News Feed Newsletter Signup Health Extras Ask the Experts: Q&A Ask a Health Question NOW » Find a Therapist » Google Refined Search » Health A to Z lists: News & Views Diseases & Conditions Symptoms & Signs Procedures & Tests Medications Medical Dictionary Popular health centers: Allergies Art.
levitra vs viagra 's Health Topics Osteoporosis STD's in Men Erectile Dysfunction Blood in Semen Prostate Cancer Sexual Problems News via RSS Ask the Experts Daily Health News Handsome Doctors in the Operating Room Pet Owners Put Pets on Xmas Gift List Misletoe for Cancer? Maybe Not Botox Soothes Writer's Cramp Avoiding Common Holiday Dangers Health News Feed Newsletter Signup Health Extras Ask the Experts: Q&A Ask a Health Question NOW » Find a Therapist » Google Refined Search » Health A to Z lists: News & Views Diseases & Conditions Symptoms & Signs Procedures & Tests Medications Medical Dictionary Popular health centers: Allergies Arth.
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Levitra and Cialis Leonard S. Marks, M.D. Medical Director, USRF Forbes Magazine Compares Viagra & Levitra Hope for Men who Fail Viagra? 4th Quarter, 2003--- Two new ED drugs, vardenafil (Levitra, Bayer) and tadalafil (Cialis, Lilly ICOS), have completed extensive clinical testing, and both drugs have gained FDA's approval. Both are inhibitors of type 5 phosphodiesterase (PDE-5), thus sharing the same basic mechanism of sildenafil (Viagra, Pfizer), which was approved in March, 1998. All three are taken orally prior to planned sexual activity, acting to increase blood flow in the penis in response to sexual stimulation. However, there are important differences between the three, differences that could influence safety, specificity, duration of action, and ultimately, public acceptance within this class of drug. Giles Brindley and Drug Therapy for ED Modern drug therapy for ED was advanced enormously in 1983 when British physiologist Giles Brindley, Ph.D. dropped his trousers and demonstrated to a shocked AUA audience his phentolamine-induced erection. The drug Brindley injected into his penis was a non-specific vasodilator, an alpha-blocking agent, and the mechanism of action was clearly corporal smooth muscle relaxation. The effect that Brindley discovered, established the fundamentals for the later development of specific, safe, orally-effective drug therapies, ie, PDE-5 inhibitors. PDE Inhibition and Smooth Muscle Relaxation Phosphodiesterase (PDE) is an enzyme that causes breakdown of cyclic GMP, which is the direct intracellular mediator in the nitric oxide (nonadre
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