To be honest as I have got older I have had a couple of issues with my stomach after drinking alcohol, but only when I have had too much so you could say that it serves me right! When I have had indigestion or heartburn then all I have used to get rid of it have been the usual over the counter remedies such as Gaviscon.
If you are having stomach problems though after only a couple of pints of beer or a couple of whisky's, it might be worth a trip to the doctor just to see if they can give you any advice, although they will no doubt just tell you to stop drinking altogether!