Is pregabalin effective for anxiety relief?

I could see why as it potentiates GABA, a neurotransmitter that encourages relaxation, but pregabalin isn't indicated for anxiety (it would be prescribed off-label for anxiety). For me, I think it does help, but I take it for fibromyalgia primarily. I imagine antidepressants would work better for anxiety treatment as they're indicated to treat anxiety. Pregabalin is categorized as an anticonvulsant.