7 comparison of aspirin d theanine cocrystal product with bayer aspirin 300 mg of the aspirin d theanine cocrystal product was dissolved in 150 ml of water in one beaker and a 325 mg tablet of bayer aspirin was dispersed in 150 ml of water in another beaker a 514 nm laser beam was first passed through the aspirin d theanine cocrystal solution and then through the bayer aspirin dispersion a strong tyndall effect was observed in the aqueous dispersion of bayer aspirin but was not observed with the composition according to the present invention dissolved in water an investigation regarding the degree of insoluble substance remaining after performance of the tyndall effect experiment was carried out the dispersions in the beakers were stirred to collect any undissolved solid in the center an accumulation of undissolved solid formed at the bottom of the bayer aspirin beaker but not in the beaker containing aspirin d theanine cocrystal product which displayed a crystal clear solution tyndall effect experiment 8 comparison of aspirin d theanine cocrystal product with water 300 mg of the aspirin d theanine cocrystal product was dissolved in 150 ml of water in one beaker and 150 ml of water alone was placed in another beaker a 514 nm laser beam was first passed through the aspirin d theanine cocrystal solution and then through the water a strong tyndall effect was not observed with.