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levitra versus viagra all of the trials levitra versus viagra, Levitra improved patients' ability to achieve and maintain a penile erection. The recommended dose is 10 mg taken 1 hour before sexual activity. A higher dose of 20 mg is available for patients whose response to the 10 mg dose is not adequate. Two lower doses (2.5 mg and 5.0 mg) are also available and may be necessary for patients taking other medicines or having medical conditions that may decrease the body's ability to metabolize vardenafil (Levitra). Levitra should not be used more than once a day. Levitra should not be used with nitrates (such as nitroglycerin tablets or patches) or with alpha-blockers (medicines that may be used to t levitra versus viagra.
levitra versus viagra Reat benign prostatic hyperplasia and or high blood pressure such as tamsulosin levitra versus viagra, terazosin levitra versus viagra, doxazosin levitra versus viagra, and alfuzosin) because the combination of an alpha-blocker with Levitra may significantly lower the blood pressure and lead to fainting in some men. Currently levitra versus viagra, there is no information available to support the safety of even the lower doses of vardenafil taken together with alpha-blockers. In addition levitra versus viagra, Levitra should not be used in patients who have a rare heart condition known as "prolongation of the QT interval" because of the possibility of producing abnormal heart rhythm. Because some drugs may affect the metabolism of Levitra levitra versus viagra, patients should inform their doctors that they are taking Levitra and they should not begin taking new medicines without informing their doctor. For example levitra versus viagra, patients taking erythromycin should not take more than a 5 mg dose of Levitra and a maximum dose of 2.5 mg Levitra once every 72 hours is the maximum recommended dose for patients who are taking the protease inhibitor ritonavir (Norvir) for HIV AIDS. Levitra should not be taken by men in whom sexual activity is inadvisable because of their underlying cardiovascular status (heart condition). Patients should inform their doctor about any heart problems they have experienced before taking Levitra. Levitra is not recommended in patie.
levitra versus viagra R doctors that they are taking Levitra and they should not begin taking new medicines without informing their doctor. For example levitra versus viagra, patients taking erythromycin should not take more than a 5 mg dose of Levitra and a maximum dose of 2.5 mg Levitra once every 72 hours is the maximum recommended dose for patients who are taking the protease inhibitor ritonavir (Norvir) for HIV AIDS. Levitra should not be taken by men in whom sexual activity is inadvisable because of their underlying cardiovascular status (heart condition). Patients should inform their doctor about any heart problems they have experienced before taking Levitra. Levitra is not recommended in patien.
levitra versus viagra 
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levitra versus viagra
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Ence." Data collected by ImpactRx, a pharmaceutical promotion research company based in Mt. Laurel, N.J., found that Levitra had captured 50 percent of the share of new prescriptions in the erectile dysfunction market by Tuesday. New prescriptions represent only a fraction of total sales because they do not include refills of existing prescriptions. The data also show that sales representatives from GlaxoSmithKline and Bayer are talking to doctors about Levitra 50 percent more than sales representatives from Pfizer are speaking about Viagra. Ms. Lipsky said the ImpactRx data was "grossly inconsistent with the audit data that we use, which shows that Viagra still dominates the category." With 11,000 sales representatives, Pfizer generally dominates marketing among physicians in almost every category of drugs that is important to the company. But GlaxoSmithKline has 8,000 sales representatives itself, and Bayer has 3,000 more. Levitra is the most important drug introduction for either company in years. "We're committed to being very competitive," Ms. Bryan said. Tony Butler, an analyst for Lehman Brothers, said he thought that Levitra's fast start would soon begin to fade. Many men who have tried Viagra have been disappointed, Mr. Butler noted. Others have been waiting to use an impotence drug and, with a new entrant, have decided now is the time, he said. Levitra is capitalizing on both sets of men. But Levitra offers few benefits over Viagra, Mr. Butler said, so many of those trying Levitra may return to Viagra or will again cease using either drug, he said. "It's way too e
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