Guest
Guest
Feb 26, 2026
11:03 PM
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Sildenafil citrate is the active ingredient in medications like Viagra and is also the base for drugs like Vilitra 60. It was invented by the pharmaceutical company Pfizer in the late 1980s. The key scientist credited with its development is Dr. Nicholas Terrett, working with a team of chemists and pharmacologists at Pfizer. Originally, it was researched as a treatment for angina and heart-related chest pain, but researchers noticed it caused improved erections, leading to its approval for erectile dysfunction in 1998. 2. Vilitra 60 Vilitra 60 is a branded Vilitra 60 Mg containing Vardenafil, not Sildenafil. Vardenafil is a different PDE5 inhibitor, developed later by Bayer Pharmaceuticals and Lilly ICOS. So, while Sildenafil (Viagra) was invented by Pfizer, Vilitra 60’s active drug, Vardenafil, was developed by Bayer/Lilly to offer a similar but distinct ED treatment with a slightly different duration and onset profile. Sildenafil citrate ? Pfizer Vilitra 60 (Vardenafil) ? Bayer/Lilly If you want, I can also make a timeline showing when Sildenafil, Vardenafil, and other ED drugs were developed and approved, which makes it easy to see the history of these medications.
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