Tarun Jain, Anil Bhandari, Veerma Ram, Sanjay Sharma, Ratendra K Chaudhary and Manish Parakh
Rationale: Till date, very few HPLC methods are available with short run time for monitoring of haloperidol, facilitating large number of sample analysis within short time frame.
Objective: A selective and sensitive reverse phase high-performance liquid chromatographic assay has been developed for monitoring of Haloperidol levels.
Methodology: Chromatogram separation of Haloperidol and Loratidine (Internal Standard) was achieved using C18 column as stationary phase. Mobile phase consists of Acetonitrile and Water (50:50), pH-2.5 with 0.1% Acetic Acid and 0.05 M KHPO4 at a flow rate of 1.6 mL min-1. Detection was carried out at 240 nm using UV-PDA detector. Retention time for Haloperidol and Internal Standard was found to be 2:13 and 3:16 minutes respectively. The method has been validated for linearity, specificity, robustness, stability, accuracy and precision.
Results: Linearity for Haloperidol was in the range of 03-200 ng mL-1. The total run time of analysis was 5 minutes and the lower limits of detection and quantification were 1.0 and 3.0 ng mL-1 respectively. In present study, most of the enrolled patients were clinically stable on Haloperidol (as evident from various rating scales applied during the study period) at therapeutic range of 5-19 ng mL-1 [13.04 ± 4.03]
Discussion: This validated high-performance liquid chromatographic method using a simple mobile phase has been successfully applied for clinical monitoring of Haloperidol in psychiatric patients. The method is economic and its time sparing ability using simple RP-HPLC speaks its utility in clinical and toxicological management over other analytical methods.
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