Some links that may interest you. Also, is he home from the hospital? What does his doctor feel about
the persistent memory issues? Let me know if you have any questions. Caffeine from the coffee and energy drinks, as well as other substances in the energy drinks, and lack of adequate hydration probably paid a big part. With adequate hydration, the concentration of caffeine and other substances may have been less, and caffeine works as a diuretic, promoting additional loss of water, nit a good thing. Single tonic-clonic seizure after energy drink abuse.
"Energy drinks are soft beverages especially marketed for adolescents in order to obtain a heightened sense of awareness. Concerns about
the safety of these drinks are raised based on our observation of potentially serious adverse effects. Caffeine and taurine are psychoactive agents highly present in energy drinks, which may lead to modification of neurotransmission. We herein report the case of a 20-year-old man presenting with a generalized epileptic seizure after energy drink consumption"www.ncbi.nlm.nih.gov/pubmed/22370117
"Herein, we want to attract attention to adverse effect of energy drink usage." (See following link, energy drink and alcohol, yet they are attributing a stroke like event due to the consumption of the energy drinks)www.ajemjournal.com/article/S0735-6757(12)00244-6/abstract