Drug Gene Type Source trihexyphenidyl CHRM4 IC50=0.00548(uM) D1 PubChem trihexyphenidyl CHRM1 IC50=0.00561(uM) D1 PubChem trihexyphenidyl CHRM5 IC50=0.012(uM) D1 PubChem trihexyphenidyl CHRM3 IC50=0.015(uM) D1 PubChem trihexyphenidyl CHRM2 IC50=0.034(uM) D1 PubChem trihexyphenidyl SIGMAR1 IC50=0.108(uM) D1 PubChem trihexyphenidyl CYP2D6 IC50=2.4498(uM) D1 PubChem