Amygdalin is hydrolysed by two enzymes (amygdalin hydrolase and prunasin hydrolase) most proficiently in crushed, moistened kernels, resulting in the formation of HCN and glucoseAn antidotal mixture of inhaled amyl nitrate and intravenous sodium nitrite and sodium thiosulfate in many cases are indicated. The IPCS/CEC (1993) critique of antidotes fo