Just ordered 10 grams. Thinking about taking 100mg-200mg. Have no gaba drug tolerance what so ever. Used to be addicted to alcohol and benzos. Hell rhe first time I did phenibut I OD because of that combo 😂. So ya, don't mix with other gaba drugs. I ordered this because even tho my kratom and cannabis is working for most of my anxiety, there is still times where I have super high anxiety. My plan is to use f phenibut for anxiety only 2x a week at max, and try to use it only for high anxiety moments or social settings. I hear so many mixed things about f phenibut, some people say it's junk, and other says it's pretty nice. I like that it hits faster appearantly, 10x stronger, and doesn't last as long.