S-Adenosylmethionine Silybin / Phospholipids Tablets. Supports liver function. S-adenosylmethionine increases hepatic levels of glutathione - an important antioxidant that protects hepatic cells. It may also promote hepatocellular regeneration. Zentonil® Advanced also contains silybin (milk thistle) complexed with phosphatidylcholine to increase the oral uptake and bioavailability of silybin for further support of liver function.