Originally Answered: Possible overdose? Don't know what to do can someone please help?
Probably don't need the hospital unless you have insurance since otherwise the admission itself will cost about a grand or more.
But, like the others say, drink plenty of water or even if you're REALLY "worried", then see if you can go to the grocery store or another like Walgreen's and buy some Valerian Root, which isn't illegal, and is also useful in some situations of anxiety and great for sleep (it's known also as "Nature's Xanax", but not nearly as strong or anything.
The last thing to do is probably go onto the Web again and either go to the manufacturer's website & call or contact them & tell them what happened, or you can take it a step further so it doesn't happen to others like you, and report this as a "drug" or strong stimulant to the FDA or even to a consumer-advocacy panel.
If this got so bad that you were/are hurt or injured, then that is when you'd need to speak with an attorney and make sure you have a witness, receipt, hospital records that show high amounts of caffeine & guarana metabolites (I guarantee it has that in it, otherwise, it wouldn't even be illegal in some states), and whatever else is making that stimulant so powerful, so that at least some people can be responsibly warned about the potential uncomfot the product causes in some people. That alone will help out for those who don't read labels, those who like to try to get high, and those who might actually be allergic to the ingredients; plus there's ALWAYS the teenage idiot who blows a few lines of coke or meth and THEN drinks a high-potency "energy" drink and dies from a massive coronary problem/heart attack. THEN that company will be very sorry they marketed a drink like this.
I've never heard of the product, and I'd have to say that since it isn't FDA "approved" (hey, not that I totally trust the U.S. F.D.A. but they sometimes have good intentions) nor licensed, etc. --that is one reason I'd probably never even try it. Sounds like a crappy name anyhow-- "Spike Shooter"? A much better name would just be "High Alertness with Caffeine and Guarana Seeds"....but anyhow, maybe next time you're "nodding off", try a "simple" caffeinated soda (Diet Mountain Dew has the MOST caffeine of any "regular or diet" soda available beside maybe JOLT), or actually eat something in the AM. These marketed "energy drinks" DO NOT actually GIVE you energy. They only stimulate the CNS. Energy is produced in the basic cellular level by the process called the ADP/ATP tricycle. Adenine tri-phosphate (ATP) is also available in some supplements, and can be produced in the body from things even such as Blue-Green Algae, or Spirulina, plus some others like Chromium Picolonate (which has many other health benefits also).
Oh, yeah, you will, by the way, CRASH HARD later (at that time, get some fruit or simple carbs to quickly break down and your body will like that and you'll feel much better too). Enjoy!