NADH CoQ reductase is inhibited by

Inhibitors of electron transpo chainComplex I Complex II Complex III Complex IV AmobarbitalRotenonePericidin AGuanethidine Chlorpromazine Malonate Carboxin Antimycin A, BAL Naphthoquinone PhenforminCarbon monoxide CyanideHydrogen sulphide Azide Inhibitors of oxidative phosphorylationuBlocking reentry of protons through ATP synthase - Oligomycin , VenturicidinuInhibitors of ATP - ADP exchange - Atractyloside , BongregateuIonophores - Valinomycin , GramicidinUncouplers of oxidative phosphorylationuPhysiological uncouplers - Thermogenin, Thyroxine, Long chain fatty acids, Unconjugated bilirubinuSynthetic uncouplers - 2,4 Dinitrophenol, 2,4 Dinitrocresol, Calcium, Aspirin, DicoumarolHarper's illustrated Biochemistry , 30th ed , page 133