Side Effects
Consisting of a potent amphetamine base, Vyvanse offers a wide array of dangerous and frightening side effects, including: rapid pulse, increase in blood pressure, hallucination, paranoia, liver damage, mania, loss of appetite, personality changes, nervousness, "creepy crawly" sensations in the extremities, agitation, anxiety, panic attacks, irritability, aggression, skin irritation, urinary tract infection, insomnia, viral infection, headache, and depression.
from here:
http://www.associatedcontent.com/article/1834281/how_safe_is_vyvanse_for_treating_adhd.html
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