Amygdalin is hydrolysed by two enzymes (amygdalin hydrolase and prunasin hydrolase) most effectively in crushed, moistened kernels, leading to the formation of HCN and glucose An antidotal blend of inhaled amyl nitrate and intravenous sodium nitrite and sodium thiosulfate are sometimes indicated. The IPCS/CEC (1993) evaluate of antidotes for cya