(Aho) ProHepatic Liver Support is a potent antioxidant that supports and protects liver function. Contains Siliphos, an exclusive complex of silybin, which is the main active constituent of milk thistle and phosphatidylcholine. Silybin is derived from milk thistle. It supports oxidative balance and helps the flow of bile through the liver. Silybin may also support levels of glutathione which is an important compound protecting liver health. Zinc supplementation may be beneficial in dogs with long-term decreased liver function as these dogs often have low liver zinc levels. Do not use in pregnant animals. Tablets.