Amygdalin is a cyanogenic glycoside derived from the aromatic amino acid phenylalanine. Prunasin is a cyanogenic glycoside related to amygdalin. A glucoside is a glycoside that is derived from glucose. The glycoside and saponin constituents are considered toxic. Icariin is a chemical compound classified as a prenylated flavonol glycoside, a type of flavonoid. Some proteins have been found to act as glycoside hydrolase inhibitors. Minor UV blockers include quercetin 7-"O"-glycoside, quercetin itself, kaempferol glycoside, and feruloyl ester. Both molecules include a lactone and a triple-repeating sugar called a glycoside. A galactoside is a glycoside containing galactose. Many compounds are known that can act to inhibit the action of a glycoside hydrolase. They belong to glycoside hydrolase family 14. They belong to glycoside hydrolase family 13. Digoxin is in the cardiac glycoside family of medications. This treatment is used for digoxin poisoning, another cardiac glycoside. It is a glycoside produced from glucose and lauryl alcohol.