1) Inhibitors of Electron Transport Chain
                     Complexes
• Barbiturates (Amytal Na)     Complex I
• Rotenone (fish poison)
• Malonate                     Complex II
• BAL (British Anti Lewisite)  Complex III
• Antimycin A
                               Site IV
• Cyanide (NaCN, HCN).
• Carbon monoxide (CO)
• Hydrogen sulfide (H2S)
• Azide (NaN3)
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