Dump it or else you'll be drinking it in a few days. I remember when I used to pour out beer and then a few days later I was f*cking going livid!! Back round the shop to get more. So then I used to force myself to just leave it in the fridge. Not that there would be any leftover anyway. Only if I was doing enough pychedelic drugs to paralyse me would that ever happen.
Get rid of it or you will drink it! Then when you feel like going round the shop, go to AA or SR or whatever else that stops you from buying more.