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The active ingredient in Levitra is called vardenafil. When vasodilators are used in combination, an additive effect on blood pressure may be anticipated. There were no severe adverse events related to hypotension in either study. WHAT ARE THE INGREDIENTS OF Levitra? Active Ingredient: vardenafil hydrochloride Inactive Ingredients: microcrystalline cellulose, crospovidone, colloidal silicon levitra doesn't work magnesium stearate, hypromellose, polyethylene glycol, levitra doesn't work dioxide, yellow ferric oxide, and red ferric oxide.

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ritonavir (Norvir®) or indinavir sulfate (Crixivan®) saquinavir (Fortavase® or Invirase®) or atazanavir (Reyataz®) ketoconazole or itraconazole (such as Nizoral® or Sporanox®) erythromycin or clarithromycin other medicines or treatments for ED HOW SHOULD YOU TAKE Levitra? Take Levitra exactly as your doctor prescribes. When Levitra was taken as recommended in placebo-controlled clinical trials, the following adverse events were reported (see Table 5). Do NOT use Levitra if: you are allergic to any ingredient in Levitra you have been advised by your doctor to avoid sexual activity because of heart problems you have certain heart problems (eg, severe heart failure, angina), low or high blood pressure, severe liver problems or levitra doesn't work kidney problems that require dialysis you have certain hereditary degenerative eye problems (eg, retinitis pigmentosa) you have had a heart attack, stroke, levitra doesn't work life-threatening irregular heartbeat within the past 6 months you have a history of a certain type of irregular heartbeat (eg, congenital QT prolongation) or you take levitra doesn't work antiarrhythmic medicines (eg, quinidine, procainamide, amiodarone, sotalol) you are taking a nitrate (eg, isosorbide, nitroglycerin) in any form (eg, capsule, ointment, patch, tablet), or nitroprusside you use certain recreational drugs called "poppers" (eg, amyl nitrate or nitrite, butyl nitrate or nitrite) you levitra doesn't work another PDE5 inhibitor (eg, sildenafil, tadalafil) or another medicine that contains vardenafil Contact your doctor or health care provider right away if any of levitra doesn't work apply to you. Follow your doctor's instructions. Do not take vardenafil more than once a day. This has levitra doesn't work in a small number of people taking vardenafil, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoke or are over 50 levitra doesn't work old. Revision Date: 01/25/2010 12:14:25 PM. Stop using Levitra and call your doctor at once if you have any of these serious side effects: sudden vision loss; ringing in your ears, or sudden hearing loss; chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling; irregular heartbeat; levitra doesn't work in your hands, ankles, or feet; shortness of breath; vision changes; feeling light-headed, fainting; penis erection that is painful or lasts 4 hours or longer; or seizure (convulsions). Information for Patients Physicians should discuss with patients the contraindication of Levitra with regular and/or intermittent use levitra doesn't work organic nitrates. Check the label on the medicine for exact dosing instructions. If you have moderate liver impairment, the recommended starting dose is 5 milligrams, not to exceed a daily dose of 10 milligrams. Levitra Generic levitra doesn't work vardenafil hydrochloride Dosage Form: tablet, film coated Levitra® (vardenafil HCl) TABLETS Levitra Description Levitra® is an oral therapy for the treatment of erectile dysfunction. In those patients who are stable on alpha-blocker therapy, Levitra should be initiated at a dose of 5 mg (2.5 mg when used concomitantly with certain CYP3A4 inhibitors - see Drug Interactions). These observations should be considered in clinical decisions levitra doesn't work prescribing vardenafil to patients with known history of QT prolongation or patients who are taking medications known to prolong the QT interval. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. Multum's levitra doesn't work information does not endorse drugs, diagnose patients or recommend therapy. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). levitra doesn't work safety and efficacy of Levitra used in combination with other treatments for erectile dysfunction have not been studied. In a single dose study in 25 normal males, Levitra 40 mg, twice the maximum daily recommended dose, did not alter visual acuity, intraocular pressure, fundoscopic and slit lamp findings. Take Levitra only before sexual activity. These observations should be considered in clinical decisions when prescribing Levitra to patients with known history of QT prolongation or patients who are taking medications known to prolong the QT interval. Its effects during pregnancy and breastfeeding have not been studied. Allow 24 hours to pass between doses. Before using Levitra: Some medical conditions may interact with Levitra. For more information you can levitra doesn't work visit www.Levitra.com, or call 1-866-Levitra. If you get an erection that lasts more than 4 hours, get medical help right away. Printed in U.S.A. levitra doesn't work may help a man with ED get and keep an erection when he is sexually excited. The medication can help achieve an erection when sexual stimulation occurs.