Trying to find Phenibut in store or an alternative until my order comes.

I'm using phenibut medicinally for extreme anxiety until I get in with the doctor for help. I was wondering if you think any stores sell it, theirs a city nearby with many vitamin shops.

If anything I'd love to know an alternative I could take until my order shows up next week. Anything helps, the circumstances are dire and that's why I chose to start taking it, could not handle a couple days withdrawling right now.

Thank you!

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-edit: no stores around me sell it, so an alternative supplement would be GREAT and very much appreciated.