I just started Corgard 10 mg, once a day for my Junctional Tachycardia since my unsuccessful ablation. The medication doesn't seem to be working yet. We had friends come over this evening and I had 2 drinks in 3 hour period of time and it triggered my tachycardia. My drinks were measured out, 1 beer and 1 shot, so not a mixed drink where I don't know how much alcohol was in it. Before the ablation and medication it never bothered my heart, actually I felt better when I drank. Has anyone else had this happen? Did it ever change? Did you just stop drinking? I can, I'm not even close to an alcoholic, but I enjoy socializing with friends and taking the edge off when I need to relax some. The doctor said I could indulge, the pharmacist said it was fine as well. Argh!