TY - JOUR T1 - Bromperidol radioimmunoassay: human plasma levels. AU - Tischio,J, AU - Hetyei,N, AU - Patrick,J, PY - 1984/4/1/pubmed PY - 1984/4/1/medline PY - 1984/4/1/entrez SP - 546 EP - 8 JF - Journal of pharmaceutical sciences JO - J Pharm Sci VL - 73 IS - 4 N2 - A sensitive radioimmunoassay (RIA) procedure was developed to assay for bromperidol levels in human plasma after therapeutic drug administration. The antisera used in the RIA procedure was generated in rabbits against a haloperidol-bovine serum albumin conjugate. Tritiated haloperidol was used as the radioligand in the assay. A single ether extraction of alkalinized plasma was used to separate bromperidol from its more polar metabolites and to reduce assay variability encountered with a direct plasma assay. The lower limit of detection was approximately 0.5 ng/mL of parent drug in plasma. The assay exhibited within- and between-assay variabilities of approximately 9 and 14%, respectively. A 103-106% recovery of bromperidol from quality control plasma samples was observed over the concentration range of 1-150 ng/mL. A correlation coefficient of 0.9999 with respect to measured versus expected bromperidol content in the quality control plasma samples was exhibited. Cross-reactivity characteristics of the antisera indicated that dehydrobromperidol could significantly interfere (approximately 25% cross-reactivity) with the RIA procedure. However, biotransformation studies have not suggested this compound as a metabolite of bromperidol. Predose (Cmin) plasma levels of bromperidol in schizophrenic patients maintained on drug therapy are also reported. SN - 0022-3549 UR - https://www.unboundmedicine.com/medline/citation/6726642/Bromperidol_radioimmunoassay:_human_plasma_levels_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-3549(15)46070-8 DB - PRIME DP - Unbound Medicine ER -