Hi, my daugther takes vyvanse, 30 mg/ a day... she s 14 ... since few days, i see her drunk some thing like red bull or monster... i m not sure it s a good thing... what do you think about that? I m sorry for my english... i speak french! Thank s a lot
Hi,Red Bull claims to be a non-alcoholic Chat Doctor.  Caffeine can be harmful to the cardiovascular system. It can worsen the side effects of amphetamines such as jitters or anxiety. Using lisdexamfetamine together with alcohol can increase the risk of cardiovascular side effects such as increased heart rate, chest pain, or blood pressure changes. Take care. Hope I have answered your question. Let me know if I can assist you further.