What is Viagra?

    Viagra (Sildenafil Citrate) is the world’s most trusted treatment for erectile dysfunction (ED), manufactured by Pfizer Inc. — a global pharmaceutical leader founded in 1849 and headquartered in New York, USA. Pfizer is the largest pharmaceutical company in the world, employing over 100,000 people across 150 countries with annual revenues exceeding $50 billion. From the discovery of penicillin to the development of Viagra for ED treatment, Pfizer has consistently pioneered solutions for the most significant medical challenges of each era…