Effects of piracetam on erythropoiesis and leukopoiesis in rats.

Erythro- and leukopoiesis in rats after 10-day treatment with piracetam (2 x 200 mg/kg b.w.) were studied. Increase of reticulocytes and of 59-iron incorporation in newly formed erythrocytes accompanied by an increase of the index of maturation of erythroblasts in bone marrow were found suggesting a piracetam-induced stimulation of erythropoiesis. Piracetam also increased the number of small lymphocytes and the maturation of granulocytes in bone marrow. It is supposed that piracetam exerting a positive effect on the metabolic processes of erythroid, myeloid and lymphoid precursors stimulates their proliferation and differentiation.