Effective influenza treatment is dependent on rapid detection. According to the CDC, antiviral treatment should be initiated as soon as possible after the onset of symptoms, ideally within 48-72 hours. Swine influenza A (H1N1) has been shown in laboratory settings to be susceptible to prescription antivirals Tamiflu (oseltamivir) and Relenza (zanamivir). The H1N1 viruses are resistant to amantadine and rimantadine, and authorities do not expect the seasonal influenza vaccine to provide protection against the swine influenza A (H1N1) viruses.