“…Different types of assays are also popular to quantify the presence of drug traces including antibiotics. Among them, enzyme-linked immunosorbent assays, fluorescence immunoassays, 19 and radioimmune assays were successfully applied to detect the presence of drugs like neomycin, 20 thiamine, 21 and other drugs like infliximab, 22 vedolizumab, 23 benzoylecgonine, 24 etc. Although cross-reactions may impair the precision and detection accuracy of such assays, a high detection threshold stands as a barrier and insists to find out other better methods.…”