different types of xanax makes me sleepy?

I have tried a bunch of different kinds. today i tried a new kind and made me feel really tire and sleepy which i know is a side effect...it's a benzo..but other company don't have that effect..is it all in my head?

 

probably in ur head but it seems like the yellow banana bars I thought made me more sleepy than others but probably psychological

 

all Alprazolam is the same regardless of manufacturer . the only difference you could notice would be the makeup of the pill: mixers, binders, XR matrix or pill coating- these could all affect the rate of absorption but thats about it. you probably had a different benzo or just tolerance or even blood sugar! the variables are endless but the drugs are all the same.