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Some studies have shown an increase in the risk of seizures while on stimulant medication.  Most of these patients have either a personal or family history of a seizure disorder, however, it may rarely happen in patients without any history of seizures. The FDA recommends discontinuing stimulant medication if seizures occur.


Studies have also shown there is a temporary slowing of growth in children that are consistently on stimulant medications. Monitoring to make sure children’s height and weight are increasing at normal rates is recommended. Stimulant medication may need to be adjusted or temporarily stopped if a child is not growing within normal ranges.


Foods and Medication Interactions


There are some foods and medications (including over the counter medications) that should be avoided when taking Vyvanse. Some should not be taken within a certain time period but may be okay if taken outside of the time frame. If you should have any questions, contact your doctor or pharmacist for clarification.


The FDA lists the following foods and drugs that should be avoided. Some of these increase the absorption of Vyvanse and others may decrease the absorption. Both will lower the effectiveness of the medication. Vyvanse may block other medications and therefore the other medication may not be as effective.

  • Foods or medications that increase acidity (such as citrus juices)
  • Urinary Acidifying agents
  • Adrenergic blockers
  • Antacids
  • Tricyclic antidepressants
  • MAOI inhibitors
  • Antihistamines
  • Antihypertensive medications
  • Chlorpromzines
  • Exthosuximide
  • Haloperidol
  • Lithium Carbonate
  • Meperidine
  • Methenamine therapy
  • Norepinephrine
  • Phenobarbital
  • Phenytoin
  • Propoxyphene
  • Veratrum alkaloids



Vyvanse can cause complications during pregnancy and breast-feeding. Talk with your doctor if you are pregnant, planning to become pregnant or are breast-feeding. The medication in Vyvanse can be passed to your baby through breast milk and can be dangerous to the baby.


In addition, when Vyvanse is taken during pregnancy it can cause premature birth, low birth weight or withdrawal symptoms in your newborn.




“Vyvanse”, Shire Pharmaceuticals, Approved by U.S. Food and Drug Administration

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