This is a beta blocker. There is no listing for it as problematic specifically for PN. However, it is listed as a beta blocker as rarely but possibly causing drug induced lupus.
http://books.mcgraw-hill.com/medical...carvedilol.pdf
I had a severe reaction to lisinopril (an ACE inhibitor), and it caused swelling, breathing difficulty, lupus rash, severe GI problems, and I had to have it changed. I now take a low dose of atenolol, which is a beta blocker. While this is also a rare risk for lupus, I don't seem to have a problem with that now. ACE inhibitors are far more likely to cause drug induced lupus and reactions than your drug.
Your dose is pretty high for the Coreg, you might ask for a dose reduction, and see if that still works at a lower dose. Coreg comes in 3.125mg, 6.25mg, 12.5mg and 25mg. There is an extended release form also with different strengths.
If you are taking a statin, that would be far more problematic than the Coreg IMO.
Do not discontinue Coreg suddenly....it must be tapered down slowly to avoid shocking the heart.
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Weezie looking at petunias 8.25.2017
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