Alpha Lipoic Acid and reflux

I took ALA for about 2 months until it caused such severe burning and reflux that I had to give it up. I have a lot of nerve damage that causes weakness. While taking ALA, I felt better than I had in 15 years. Has anyone found a way of taking it to avoid stomach upset? I was thinking of trying an infusion but don't know how helpful that would be or how long it would last before needing another infusion. Also, has anyone found R lipoic acid a better alternative?