I don't know. For me, the amount I needed would have been very hard sublingual. But, most of the time I took mine in footbaths. I'd been doing bicarb FBs for awhile, then added the K (K+) as well as aminos. this worked well for me, easier than drinking so much.
I don't know. What's IR dr? internist? Good luck.And could a big copper dose explain my symptoms?