soy milk versus whole mlk

i have been titrating using whole milk, but i am a vegan and drink soy milk normally, just using the

whole milk for titrating my valium. can i switch to soy milk without any problems? I crush 2mg pills

in 100ml milk and am now up to 3ml cut daily(I am currently at 8mg moving down to 6) and spread

out the milk to 3x a day with my pills.

just wondering what would  happen if i just used soy milk. i make up my drug milk in the morning and

it sits in the frig until the following morning. when i take my cut and drink the drug milk(plus pill), i also

rinse out the drug milk jar to get all the residue, so does it matter if i use soy versus cow?

thanks anyone