Patent ID: 8592564

Claim:
An antibody composition for use in an immunodiagnostic assay for detecting the presence of lamotrigine in a sample from a patient treated with lamotrigine, the composition comprising: an anti-lamotrigine antibody produced by an immunogenic composition including a lamotrigine derivative, the lamotrigine derivative having a chemical structure of Formula 1; wherein: L is NH; W is CO(CH 2 ) 2 CONH(CH 2 ) 2 ; X is NHCO(CH 2 ) 6 ; Y is Y 1 —Z, wherein Y 1 is CO and Z is BSA or KLH; and wherein the anti-lamotrigine antibody has at least one binding domain capable of binding lamotrigine, and wherein the antibody has a titer at least 1:100,000.