I am new to the boards and just want to see if anyone had the same problems as me.  I took Pepcid AC a ton in college.  I went out about 3 nights a week and took it every one of those days.  After a while I noticed that Pepcid AC stopped working as well.  I was pretty consistent about it too, always taking it 45 minutes before drinking too.  I decided to double the dosage whenever I went out and that started working again.  A few weeks later though that dosage stopped working as well.  I even tried 3 or 4 pills and they did nothing.  I also noticed that if I forgot to take Pepcid before drinking, my tolerance would be cut in half and I would get sick much much easier.  Needless to say, I have since stopped taking Pepcid AC altogether as I was beginning to get worried about my health.  I was taking extra-strength Pepcid and taking 4 of those at one time simply can't be good for you.  At about this time too, I started becoming lactose intolerant.  I used to be fine drinking glasses and glasses of milk but now I could no longer.  I would get stomach and intestinal pains on top of other things.  I asked my really intelligent med school buddy if there could be a connection and he said it was a possibility. 

I am basically asking two questions:

1.  Can habitually taking Pepcid AC before drinking make your body dependent on Pepcid AC to process alcohol?

2.  Can taking too much Pepcid AC make you lactose intolerant?

FYI my solution now has been to pre-game earlier as I find that after an hour or so my flush will be reduced enough to the point where I am willing to go out.