Patent ID: 7678551

Claim:
A kit for use in an immunodiagnostic assay for detecting the presence of lamotrigine in a sample, the kit comprising: a lamotrigine analog having a chemical structure of one of Formula 1 or Formula 2; L is NH; W is selected from the group consisting of CO(CH 2 ) 2 CONHCH 2 , CO(CH 2 ) 2 CONH(CH 2 ) 2 , or CONH(CH 2 ) 3 ; X is a covalent bond between W and Y or any one of NHCH 2 , NH(CH 2 ) 2 , NH(CH 2 ) 3 , NH(CH 2 ) 4 , NH(CH 2 ) 5 , NH(CH 2 ) 6 , NHCO(CH 2 ) 2 , or NHCO(CH 2 ) 6 ; Y is selected from the group consisting of COOH, COO—NHS, COO-tertbutyl, NH 2 , or OH; or Y is Y 1 -Z, wherein Y 1 is selected from the group consisting of COO, CO, O, CONH, NHCO, or NH and Z is an operative group; and an anti-lamotrigine antibody having at least one binding domain, the antibody having a portion capable of binding lamotrigine and/or a lamotrigine analog, wherein an interaction between the antibody and the lamotrigine analog is at least 50% of at least one of affinity, specificity, or avidity of the antibody for lamotrigine.