Vyvanse may cause serious cardiovascular, mental (psychiatric), and circulatory side effects. Vyvanse may also cause the slowing of growth (height and weight) in children. The most common side effects of Vyvanse include anxiety, decreased appetite, diarrhea, dizziness, dry mouth, irritability, loss of appetite, nausea, trouble sleeping, upper stomach pain, vomiting, and weight loss. These are not all the possible side effects of Vyvanse.
For more information, ask your doctor or pharmacist and see Important Safety Information.