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There are lots of things out there similar to 5 Hour Energy, but it does not have any caffeine in it. I've taken it and haven't experienced any tachycardia from it. It's just like taking a ton of B Vitamin tablets plus some other stuff to help your body absorb lots of it.
I have super ventricular tachycardia and mitral valve prolapse.
I have super ventricular tachycardia and mitral valve prolapse.