Dear patient, I am Dr. Neel Kudchadkar and I will help you now. I have examined your question and being your personal physician, will handle all your medical needs. Firstly, you have mentioned that your son is probably suffering from Mood Disorder, now, all energy drinks provide the boost because they contain large amounts of caffeine, which increases the pain of the bipolar mood problem. I would say that energy drinks can alter the electrolyte balance in the body and a person who takes Lithium is vulnerable to cationic loss. For these reasons, I kindly advise you to help him utilize citrus drinks like Guava or Cranberry juice, which supply large amounts of antioxidants and vitamins to him, give him a more powerful energy boost and he can take Lithium side by side with these. As regards autism, I would ask you to bear patience with certain erratic behaviour and demands posed by your son because, autistic people are known to be highly talented in engineering and science. Despite social issues, if your son is channeled into the correct academic environment, his life will bloom. Therefore kindly regard his autism as a mixed blessing. For instance, Albert Einstein was known to have autistic tendencies. The theory of relativity is a product of schizoid detachment put to good use. You can contact me personally at this address www.bit.ly/askdrneel Take care, Dr. Neel Kudchadkar Health Care Magic.