Quick Facts
Generic NameLisdexamfetamine
Brand NameVyvanse
Drug ClassStimulant
FDA Approved2007
Starting Dose30mg daily
Typical Range30–70mg/day
Max Dose70mg/day
Half-Life<1 hour (prodrug); 10–13 hours (d-amphetamine)
MetabolismRed blood cell hydrolysis → d-amphetamine
Generic Available2023
What Is Vyvanse?
Lisdexamfetamine (brand name Vyvanse) is a central nervous system stimulant (prodrug) (Stimulant) prescribed for adhd, binge eating disorder, and other psychiatric conditions. Prodrug design reduces abuse/diversion potential. Smoother onset and longer duration than Adderall. Only stimulant FDA-approved for binge eating disorder. Cannot be snorted/injected for euphoria (prodrug must be metabolized). Schedule II.
At Psychiatry Telemed, lisdexamfetamine is prescribed and monitored by board-certified psychiatrists who understand the nuances of Stimulant pharmacology — selecting the right dose, managing side effects, monitoring drug interactions, and optimizing your treatment through consistent monthly medication management appointments.
Lisdexamfetamine (Vyvanse) — Stimulant medication for psychiatric care
ManufacturerTakeda (originally Shire)
How Vyvanse Affects Neurotransmitters
How Vyvanse Works
Lisdexamfetamine is a prodrug — pharmacologically inactive until cleaved by red blood cell enzymes into d-amphetamine (the active form). This enzymatic activation rate-limits absorption, producing smoother plasma levels, longer duration, and reduced abuse potential compared to immediate-release amphetamine.
Efficacy: Vyvanse vs. Comparators
Efficacy Comparison
Response & remission rates vs. comparators (Cipriani et al. meta-analysis)
Data from published meta-analyses. Individual response may vary.
Conditions Treated with Vyvanse
ADHD
FDA-approved for ADHD in children (6+) and adults. Prodrug design reduces abuse potential.
Learn About ADHDBinge Eating Disorder
FDA-approved for moderate-to-severe BED in adults — only stimulant with this indication.
Learn About Binge Eating DisorderConsidering Vyvanse?
Board-certified psychiatrists can determine if lisdexamfetamine is right for you.
Dosage Information
| Indication | Starting Dose | Typical Range | Maximum |
|---|---|---|---|
| ADHD | 30mg daily | 30–70mg/day | 70mg/day |
| Binge Eating Disorder | 30mg daily | 30–70mg/day | 70mg/day |
Brain Regions Targeted by Vyvanse
Side Effects
Like all medications, lisdexamfetamine has potential side effects. Most are mild, occur early in treatment, and resolve within 1–2 weeks. Your psychiatrist monitors at every appointment.
Common Side Effects
Decreased AppetiteInsomniaDry MouthHeadacheAnxietyIrritability
Less Common
TachycardiaWeight LossDizzinessNauseaJitteriness
Serious (Seek Immediate Help)
Cardiovascular EventsPsychosis/ManiaSeizuresGrowth SuppressionPeripheral Vasculopathy
Side Effect Profile: Vyvanse vs. Class Average
Side Effect Profile
Incidence rates from FDA prescribing information vs. class average
Percentages from clinical trial data. Actual experience may differ.
⚠️ FDA Black Box Warning
High potential for abuse and dependence. Sudden death in patients with cardiac abnormalities.
Drug Interactions
Major Interactions
MAOIs (contraindicated), urinary alkalinizers/acidifiers, serotonergic drugs
CYP Metabolism
Not CYP-dependent. Hydrolyzed by red blood cell enzymes. Minimal pharmacokinetic drug interactions.
Alcohol
Avoid alcohol during lisdexamfetamine treatment. Both affect the CNS, increasing sedation and impairing judgment.
Generic Versions & Cost
Generic lisdexamfetamine available since 2023. Approximate cost: $30–60/month (generic); $300+ (brand). FDA-certified bioequivalent to brand-name Vyvanse.
Starting Vyvanse: What to Expect
First Weeks
Lisdexamfetamine is typically started at 30mg daily and increased gradually. Common initial side effects usually improve within 1–2 weeks. Full therapeutic benefit develops over 4–8 weeks.
When to Contact Your Psychiatrist
Contact your psychiatrist for: worsening depression/anxiety, thoughts of self-harm, unusual agitation, severe side effects, or any concerning changes.
Stopping Vyvanse Safely
Never stop lisdexamfetamine abruptly. Your psychiatrist will develop a gradual tapering schedule to minimize discontinuation effects.
Timeline: When Vyvanse Starts Working
Timeline to Effectiveness
Expected improvement trajectory over the first 8 weeks
Based on clinical trial data. Full therapeutic effects may take 6–8 weeks.
Get Vyvanse from a Board-Certified Psychiatrist
At Psychiatry Telemed, lisdexamfetamine is prescribed following comprehensive evaluation. All Florida via HIPAA-compliant telepsychiatry. 1–3 days. $200 eval, $100 follow-up.
Frequently Asked Questions
Prescribed for adhd, binge eating disorder.
Typically 2–4 weeks for initial improvement, 4–8 weeks for full benefit.
Common: decreased appetite, insomnia, dry mouth, headache, anxiety. Most resolve within 1–2 weeks.
No. Not habit-forming but should not be stopped abruptly — gradual tapering recommended.
Prodrug design reduces abuse/diversion potential. Smoother onset and longer duration than Adderall. Only stimulant FDA-approved for binge eating disorder. Cannot be snorted/injected for euphoria (prod
Alcohol should be avoided — increases sedation, impairs judgment, and may worsen symptoms.
Resources
Medical Disclaimer: Educational only. Consult a psychiatrist before starting/stopping medication. Crisis: call 988 or 911.
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