Analgesic and Anti-Inflammatory Activity: A Comprehensive Review on Invitro and In Vivo Screening Methods

Abstract

Modern pharmacotherapy includes analgesic and anti-inflammatory medicines as essential components to relieve pain and inflammation brought on by a variety of medical diseases. Robust screening techniques are essential for the identification of possible candidates with appropriate safety and effectiveness profiles in the search and development of new analgesic and anti-inflammatory medications. This study looks at the many screening methods used in preclinical studies to assess new drugs' analgesic and anti-inflammatory quality. Conventional techniques like the tail flick, hot plate, and writhing’s tests measure analgesic activity by having animals respond to unpleasant stimuli. Comparably, anti-inflammatory activity is frequently assessed using assays like the cotton pellet granuloma test, which gauges tissue granuloma formation, and the carrageenan-induced paw edema model, which measures inflammation. These traditional techniques offer insightful information about the pharmacological effects of test substances. Despite the wide range of screening techniques available, each strategy has advantages and disadvantages. Preclinical studies are more reliable and have higher predictive value when various assays and techniques are integrated into a tiered screening strategy. Furthermore, the successful translation of preclinical findings to human applications depends on taking into account translational variables including species differences and clinical relevancies. As a result, choosing the right screening techniques is critical to the effective identification and characterization of new analgesic and anti-inflammatory drugs.