It’s all “round numbers”. 81mg is just 1.25 grains, a quarter of the normal 325mg dose which is just 5 grains. It’s not like anyone did a clinical study to dete

It’s all “round numbers”. 81mg is just 1.25 grains, a quarter of the normal 325mg dose which is just 5 grains. It’s not like anyone did a clinical study to determine the effective dosage to two significant figures.