Don't wash that man right out of your hair. Take a pill instead! Metyrapone
The term "memory modification" freaks me out a bit. But Novartis doesn't care. I couldn't make it through the "Spotless Mind" movie (awful!), but I'm aware of the premise. Jim Carrey goes to a voodoo doctor or something, gets zapped by radiation, and slowly loses his mind. That's my memory of it anyway.
Now, I clearly don't need Metyrapone because I don't remember what I had for breakfast, but I get that some people might want to swallow a pill and forget the past weekend's bad decisions. I saw your date. I'd take that pill too.
Seriously, though, these memories make us who we are: good, bad, and ugly. The midwesterner in me wants to say, "Deal with it and move on." The westcoaster in me thinks, "You need to talk to someone. Here's the number to a great therapist." But, I don't think I can endorse taking a pill to delete your memories. Isn't that what vodka is for?
Keep calm and carry on, folks. Leave the pills for allergy meds and recreational experimentation.