"None of those [health claims] have been FDA approved or validated by any kind of controlled scientific studies," a doctor named Jon LaPook told CBS News in a story on IV hangover cures. He added that IV vitamin drips don't have much effect on otherwise healthy people.

Do hangover drips work?

Dr. Raja notes that if a patient is profoundly malnourished or very dehydrated, certain vitamins or the fluid alone may be useful. But patients going to get IVs after a night out typically aren't either of those things, and they're unlikely to benefit in any measurable way.

What is the best hangover prevention?