1 Mechanism of Action. Oseltamivir phosphate is an ethyl ester prodrug requiring ester hydrolysis for conversion to the active form, oseltamivir carboxylate. Oseltamivir carboxylate is an inhibitor of influenza virus neuraminidase affecting release of viral particles. Antiviral Activity.
Fish, chicken and turkey can help the organs that make your cold-destroying white blood cells, she says. Just stay away from fatty things, like a juicy steak or anything fried, since these foods are harder to digest and may suppress your immune system, she says. Flickr photo by bensonk42.
Other foods particularly good for your immune system include fresh garlic, which may help fight viruses and bacteria, and old-fashioned chicken soup. If you do come down with a cold or the flu, a bowl of chicken soup can help you get well faster, one study shows.