Unlike many other stimulant drugs, such as Adderall or Ritalin, which are often abused by individuals who have ADHD, Vyvanse is designed to provide only therapeutic effects when taken as directed. However, the drug is still a controlled substance and can be addictive if abused. Vyvanse is available only with a prescription from a doctor, which provides an important safeguard against abuse.

Like most stimulant drugs, Vyvanse changes the chemical activity of certain receptors in the brain. This can have both negative and positive effects. It is a central nervous system (CNS) stimulant, which means that it can increase energy and focus. It can also help to regulate mood and behavior. It can be taken orally or injected. Abusing the drug can lead to serious side effects, including dilated pupils, sweating, decreased appetite, muscle aches, vomiting, and insomnia. In extreme cases, it can cause hallucinations, confusion, psychosis, changes in blood pressure, heart attack, stroke, and death.

Individuals who have a history of abusing other CNS stimulants or who are at particular stages in life (such as teenagers) may be at higher risk for developing an addiction to Vyvanse or other ADHD medications. Abuse of the drug can also be a result of psychological trauma or stress, which can trigger the use of mind-altering substances to self-medicate. People who have a family history of addiction or a mental health condition, such as depression or bipolar disorder, are also at increased risk.

Vyvanse is not usually abused when taken orally, but it is abused when dissolved in water to create liquid and snorted or injected. Injected doses of the drug can have dangerous and sometimes fatal side effects, including high fever, seizures, cardiovascular collapse, or stroke. The most common signs of Vyvanse abuse include dilated pupils, loss of appetite, trouble sleeping, shaking, nausea and vomiting, or an abnormal heartbeat.

Long-term abuse of Vyvanse can lead to addiction and withdrawal symptoms. Symptoms of withdrawal can include a craving for the drug, depressed or suicidal thoughts, depression, irritability, and an inability to concentrate. The symptoms of withdrawal can also vary depending on the method of abuse. Long-term abuse can cause malnutrition because of a suppressed appetite, and may lead to legal problems if a person is caught in possession of the drug without a prescription.

Those who are addicted to Vyvanse should seek treatment from a qualified rehab center. Addiction recovery specialists can recommend programs that combine medically-supervised detox and evidence-based therapies with holistic approaches. Behavioral therapy can reduce the stigma associated with addiction and teach individuals how to cope with their challenges. It can also be helpful to join a support group, such as Alcoholics Anonymous or Nar-Anon. This can help to lessen feelings of isolation and increase the chances that someone will be able to stay in recovery.