@bigj
I take Mexiletine 150 MG 3 times a day. There are better medications for PACs, and PVCs, AFIB, etc. but I also take medications for heart failure and thus my medication is specifically for me to prevent contradictions with other medications.

My electrophysiologist (EP) also recommended I take 400 mg of magnesium to help with PACs and PVCs. A very common supplement recommendation and used by many. But always check with your doctors before adding supplements.