Ok, tried the Zantac. I had something to eat at around 7:30, popped two Zantacs (150mg) at around 9:00, then started drinking at roundabout 10:00.
After my first bottle of Smirnoff Spin which took me about 30mins to down: slight redness, face feels warm, but nothing that I don't usually experience. My eyes are a bit itchy (from lack of sleep, not so much from the drinking) so I used some eyedrops.
Second bottle of SS: No real difference, face still feels warm and I can feel my brain giving off a very gentle throb. Again, this is nothing unusual from what I normally experience.
Took me about 1h30m to finish off two bottles of Smirnoff Spin, and the Zantac has reduced the redness but not completely eliminated it. I think the eyedrops made the biggest difference, as you don't look too smashed when your eyes are a soberly white. So, my advice would be to always carry around some drops with you if your eyes tend to get red, as bloodshot eyes are a dead giveaway, especially for me. This warmish glow isn't so bad, and it's something I could still face people with without being embarrassed. I'd call this colour "Calm Unripe Tomato".
The other downside is I still got the rapid heartbeat and slight tightness of the chest, and also the warm face. I still need to try some Pepcid, and hopefully that helps alleviate these other symptoms as well as the redness. Zantac is OK in my opinion, it does reduce the redness, but doesn't eliminate it completely. Maybe try the Zantac before you opt for the Pepcid. I think I could've got better results with the Zantac as I didn't have enough sleep last night, I didn't avoid dairy today, and I maybe drank my first drink quicker than I should have. I think what most of us need is something to help us through the initial redness, because after that wears off it's not so noticeable. The most important thing is that it did reduce the redness, and I didn't feel sick, or more drunk than I usually do. I actually feel like I could drink more if I wanted to.
And don't forget those eyedrops. Keeping those eyes white really does help. :)