Amodiaquine is an orally active 4-aminoquinoline used for the therapy of malaria effective against some chloroquine-resistant strains of Plasmodium falciparum It is likely able to inhibit heme polymerase. Amodiaquine has been linked to severe cases of acute hepatitis and used only as treatment and not for prophylaxis against malaria. Amodiaquine shows mixed competitive-non-competitive inhibition type of AChE and shows slow and partial reactivation of sarin-, cyclosarin- and VX-inhibited cholinesterases. However it failed to reactivate tabun-inhibited human cholinesterases