BurbsMama -
I only been on the board for a few months, but I haven't heard of anything like that. A quick look at info on Nuedexta says it could cause dizziness if used with alcohol. As I understand it, it's basically the active ingredient in cough syrup (dextromethorphan), with something added to increase the bio availability of the dextromethorphan by keeping your enzymes from breaking it down so quickly. You might want to discuss it with your pharmacist, just for another point of view on it.
After a brief look, from what I see, you should avoid it if you've ever had QT problems (possibly heart problems in general). Low magnesium can cause QT problems and alcohol can cause the kidneys to waste magnesium. Unless you've been told otherwise or know that you're taking some medication that precludes taking supplemental magnesium, you may want to start taking some extra magnesium anyway. Some forms may be more absorbable (magnesium citrate, for example) than others (Philip's Milk of Magnesia - aka Magnesium Hydroxide). Some say that is bunk and if you have any stomach acid at all, it gets turned into Magnesium Chloride anyway. Philips works by making it's way into your colon, where it attracts water to counter constipation. Supposedly, the more absorbable forms are more likely to make it into your bloodstream, but in any case, what your body figures it can't use (for whatever reason) will end up in your colon where it will attract water and cause a laxative effect, so just be aware of that.
No, I'm not a doctor or healthcare professional of any sort. I'm just another guy on the internet.
Others will probably post on this, perhaps they've experienced or heard of such things, but in the meantime perhaps give us a bit of background on your drinking style/history and how much you're drinking now.
Also, are you taking any other meds or supplements?
All that aside, welcome to the board and congratulations on cutting your drinking in half! That's a great response to the Nal so far, I'm sure the AF days must feel great too!
BTW, you might also want to bounce your question off of
Joanna@CThreeEurope.com , she's a certified alch counselor that's a TSM'er herself. Let me know if you email her and don't hear back.