A persistent rumor, fueled by Twitter and fear-mongering, is that flu treatments Tamiflu and Ralenza ( also known as Oseltamivir and Zanamivir) are not effective against the newest strain of Swine Flu H1N1. However, Tamiflu and Ralenza (Oseltamivir and Zanamivir) are considered to be effective Swine Flu H1N1 treatments.