Best drugs to be productive at work?

I'm trying to ween myself off of Kratom, but I usually use it to wake up/be productive at work. What are some other tame, legal drugs that I could use to motivate me while at work?
Answers

Anonymous

I use caffeine

Anonymous

coffee, tea, energy fruit drinks.

ckngbbbls

a nice cup of coffee?

kelvin

you don't use any drugs for that