Abstract
Inflammation is the organism's vascular, humoral, and cellular response against various endogenous and exogenous harmful effects. Inflammation is a physiopathological process that both removes the causes of cell injury and starts tissue restructuring and healing by eliminating necrotic cells and tissues resulting from cellular injury. Inflammation has two phases which are acute and chronic. In the short acute phase, it is seen that leukocytes accumulate in the area of inflammation and mediate the secretion of chemical mediators in addition to vascular changes such as increased permeability and exudation of protein-rich fluid to extravascular tissues. In the longer chronic phase, vascular changes, edema, and massive neutrophil infiltration occur. Many steroid and non-steroid anti-inflammatory drugs are widely used in the treatment of inflammatory diseases in the world, and many of them have significant adverse effects. They cause serious adverse effects, especially in long-term users. Therefore, safer alternative drugs are needed. Experimental animal models are used in anti-inflammatory effects studies. The most commonly used model among them is paw edema in rats with carrageenan, which measures the effects of drugs on acute inflammation. In this study, information was given related to the experimental animal models used to investigate the effects of drugs on acute and chronic inflammation.