Are there any long term side effects from drinking several red bulls a day?

It is certainly addictive as it has very high levels of caffeine, more than coffee.

Actually, Red Bull has LESS caffeine than coffee. Eight ounces of Red Bull contains 80 mgs of caffeine. Your average 6-ounce cup of coffee also has 80 mgs of caffeine. And personally, I make my coffee so strong, it probably has twice as much caffeine as Red Bull.

It contains refined sugars that have been linked to obesity, Diabetes and tooth decay. If you saved the money you spent on overpriced redbull you could save a huge amount in a few years.