Vyvanse is a psychiatric drug used to treat children ages six to twelve with ADHD.   It is different than other ADHD drugs because it has to be swallowed and digested before the drug takes effect.  However, it is similar to other ADHD drugs because Vyvanse side effects are multiple and dangerous.  In order to get a good understanding of this drug, one must consider its FDA Black Box Warning, its classification as a Schedule II drug and the lack of scientific validity of ADHD itself.   These negative factors plus the Vyvanse side effects make the drug truly undesirable and off limits.
When one takes a drug, it is important to know beforehand what side effects may occur.  Some common Vyvanse side effects are insomnia, dry mouth, loss of appetite, headache and irritability.  There is also the possibility of agitation and anxiety, sweating, dizziness, diarrhea or constipation.  To have these effects occur in children would be burdensome on a parent, but this is only the beginning as these are only the typical side effects.
Less common but more severe Vyvanse side effects are high blood pressure, rapid or irregular pulse, shaking, chest pain, urinary tract infections, difficulty breathing, blurred vision, severe headaches and irritability.  What also may occur are hives, mood changes, hallucinations, paranoia, depression, seizures, tics and even infected or diseased skin.  Needless to say, these are the kind of side effects that cannot be overlooked.
Clearly any parent would not want to have their child experience any of the Vyvanse side effects. And at the extreme, no parent would want to have to take their child to the emergency room in a panic with hopes of immediate treatment to fix the chest pains, seizures and difficulty breathing type of alarming side effects.
When there is a significant risk of serious or life threatening adverse side effects, a Black Box Warning is issued by the FDA.  It is no surprise that Vyvanse has earned such a warning.  It is the strongest alert the FDA can require, the next step being banning the drug altogether.  One doesn’t need to read between the lines to conclude that this drug is dangerous.  As a parent, it would only be logical to avoid drugs with this type of label to ensure the health and safety of a child.
Besides so many negative side effects plus the Black Box Warning, a parent must be aware that Vyvanse is an amphetamine which is a formal name for speed.  It is a schedule II drug which means it has a high potential for abuse, so its medical use is severely restricted to prevent addiction.  Vyvanse is in the same group as methadone, morphine, opium, methamphetamines and cocaine, all which are well known to be abused.  Abuse of Vyvanse can cause serious cardiovascular issues or even sudden death just like the aforementioned drugs.
Lastly, the purpose of administering Vyvanse should be examined.  With the above information in mind, the condition to be treated would have to be pretty extreme and intolerable to make Vyvanse side effects worthwhile.  As mentioned earlier, Vyvanse is used to treat ADHD which has symptoms such as restlessness, fidgety behavior and inattentiveness to name a few.  These symptoms are just symptoms.  There is no proven biological cause.  No blood test, urine test, x-ray, MRI or any other medical test exists to show that these symptoms are caused by a “chemical brain imbalance” or any other body malfunction.  Therefore ADHD is not based on science or medicine.  It is not a biological disease, but consists of some subjectively lumped together symptoms to form a “mental disorder” to be treated with drugs.
In conclusion, without any positive factors and so many negative factors, you may come to the conclusion we have, Vyvanse side effects are not worth the risk.