The story of Viagra and its impact on the pharmaceutical sector presents a challenging question regarding its continued appeal as an investment. Initially a blockbuster success, generating vast revenues, generic competition has considerably eroded earnings . While leading pharmaceutical firms maintain patents on related therapies and explore new fo

The performance of companies tied to flagship drugs like Viagra presents a challenging investment landscape . While the initial surge of copyright, fueled by Viagra's extraordinary popularity, generated substantial wealth , the expiry in key territories has introduced considerable risk . Investors are now grappling with the impact of rival medicati