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Viagra made by pfizer
“The companies Pfizer and Eli Lilly, which respectively own the Viagra and Cialis brands. Viagra pills are seen in an undated file photo. For almost 20 years, Pfizer Inc. has had exclusive rights to the brand-name . 28/12/ · Pfizer, maker of Viagra, will produce a generic version of the drug. Steven May/Alamy. Pfizer will continue to sell branded Viagra while its wholly owned subsidiary Greenstone, will be able to launch a generic sildenafil citrate when Teva does. Viagra, known generically as sildenafil, is sold by Pfizer Inc for erectile dysfunction and under the brand name Revatio to treat a heart. Save Time & Money and Get Your ED Meds Prescription & Refills Online. Discreet Packaging. Reliable E.D. Meds Shipped Discreetly. Free & Private Online Consultant with Real Doctors. for Consumers: apotheke-senioren.de VIAGRA en Español. apotheke-senioren.de This product information is intended only for residents of the United States. for Healthcare professionals: VIAGRA U.S. Physician Prescribing Information and U.S. Patient Product Information. Teva agreed to pay Pfizer royalties for its product until its patent expired in As of March , at least nine other. The pharmacologically active ingredient in Viagra is sildenafil. As the first oral pharmaceutical . 10/03/ · Pfizer quickly patented sildenafil in and got FDA approval for it in as a drug to treat erectile dysfunction. And thus, Viagra was born. Viagra is used to treat. It is available as tablets (25, 50 and mg). What is Viagra? Viagra is a medicine that contains the active substance sildenafil. But it will now face competition from more than 20 different generic manufacturers which. Viagra will still be marketed by Pfizer in the UK and across Europe.