Hi everyone - I am 1/2 Japanese and 1/2 Irish.  I also turn bright red when I drink any kind of alcohol and sometimes get a rapid heart rate depending on the type of alcohol.  About 5 years ago, a friend told me about Tagamet or Cimetadine (generic Tagamet) for Asian Flush.  First of all, at the time, I didn't even know it was called Asian Flush and I didn't know I was turning red because I was Asian, funny.  Anyway, I've been taking Cimetadine ever since and it works every time, no more redness and no rapid heart rate.  I hope there are no serious side effects:-)  It's seriously the wonder pill!  I tell as many of my Asian friends and even strangers as I can.  I haven't tried Pepcid AC but will check it out and see if it works too.  Referring to an earlier post, I've never had any issue with it not working because of eating.