Levels of erythrocyte 2,3 DPG and ATP in heavy hashish smokers

The variations in concentration of ATP and 2,3 DPG, and in lactic acid production as a function of time, were measured in the erythrocytes of heavy smokers. Results indicate that the most remarkable reduction in concentration of the compounds examined occurred at 30 and 45 min after hashish smoking. The findings are discussed in connection with the possible influence of hashish components, especially delta 9-THC, on the erythrocyte glycolytic pathway.