Insomnia

• Patients taking Vyvanse may experience trouble sleeping. They may have trouble getting to sleep and staying asleep at night.
  
  

Stomach Side Effects

• Vyvanse may cause nausea, stomach pain and vomiting. Appetite may be decreased as well.
  
  

Headaches

• Some patients taking Vyvanse may experience headaches.
  
  

Mood Changes

• Some patients taking Vyvanse may experience irritability, especially when the medication is wearing off each evening.
  
  

Other Possible Side Effects

• Other side effects may include rash, dry mouth and dizziness.