In This Article
- Key Takeaways
- What Is Vyvanse (Lisdexamfetamine)?
- How Vyvanse Reduces Binge Eating
- Clinical Effectiveness & Research
- Dosing & How to Take It
- Timeline: When Does It Work?
- Side Effects to Expect
- Benefits & Advantages
- Who Shouldn't Take Vyvanse
- Combining Vyvanse With Therapy
- Cost & Insurance
- Frequently Asked Questions
Key Takeaways
- Vyvanse is the only FDA-approved medication specifically for binge eating disorder. Approval in 2015 was based on clinical trial evidence that it reduces binge frequency and intensity in many people.
- It works on impulse control and reward. Increasing dopamine and norepinephrine helps the brain resist the urge to binge and feel less driven to eat for emotional regulation.
- Effectiveness varies, but significant: About 70% of people who try Vyvanse see some benefit; 50% see significant reduction in binge frequency.
- It takes 2–4 weeks to work. Don't expect immediate results; therapeutic effects take time and dose adjustments.
- It's a controlled substance requiring ongoing monitoring. This is standard and appropriate; regular psychiatric follow-up is part of safe use.
- It works best combined with therapy. Medication reduces urges; therapy builds skills. Together they're more effective than either alone.
What Is Vyvanse (Lisdexamfetamine)?
Basic Information
Generic name: Lisdexamfetamine dimesylate
Brand name: Vyvanse
Drug class: Stimulant medication (Schedule II controlled substance)
Approved use: FDA approved for Binge Eating Disorder (2015)
Other approved uses: ADHD (though BED is the indication we focus on here)
How It's Different From Other Stimulants
Vyvanse is a prodrug, meaning it's inactive until your body metabolizes it.
Why this matters:
- It activates only in the small intestine after you ingest it
- It cannot be abused by snorting or injecting (unlike some other stimulants)
- It provides steady, longer-lasting effect throughout the day
- Lower abuse potential than immediate-release stimulants
How Vyvanse Reduces Binge Eating
The Neurobiology
Vyvanse increases two neurotransmitters in the brain:
Dopamine:
- Involved in reward, motivation, and satisfaction
- When dopamine is low, people seek reward through food
- Vyvanse increases dopamine, reducing the "need" to binge for reward/satisfaction
- You feel less driven to use food to regulate emotions
Norepinephrine:
- Involved in attention, arousal, and impulse control
- Vyvanse increases norepinephrine, improving impulse control
- You're better able to resist the urge to binge
- You can delay eating and choose not to start a binge episode
The Result
With improved dopamine and norepinephrine:
- Reduced urges to binge: The craving is less intense
- Better impulse control: When urges arise, you're better able to resist or delay
- Reduced emotional eating: Less reliant on food for emotional regulation
- Decreased appetite: Often eat less because not driven by biology or emotion
Why This Helps Binge Eating Specifically
Binge eating involves:
- Loss of impulse control (Vyvanse helps with this)
- Using food for emotional regulation (Vyvanse reduces the emotional pull)
- Reward-seeking behavior (Vyvanse addresses the dopamine deficit)
Vyvanse directly targets these mechanisms.
Clinical Effectiveness & Research
What Research Shows
Clinical trials for Vyvanse in BED showed:
- 50% reduction in binge days for about 50% of participants
- Elimination of binges (no binge days) for about 25–30% of participants
- Some benefit (30–50% reduction in binges) for about 40% total
- No significant benefit for about 30%
Translation: About 7 in 10 people see meaningful benefit; 5 in 10 see substantial improvement.
Important: Individual response varies. Some people see dramatic improvement; others see modest benefit; some see minimal change. Predicting who will respond well is difficult.
Real-World Experience
In clinical practice (outside of formal trials), results are similar:
- Many people report significant reduction in binge frequency
- Others report reduced intensity even if frequency doesn't drop dramatically
- Some report better control (can stop a binge mid-episode, versus before it felt inevitable)
- Some report no benefit
Time to Full Effectiveness
- Week 1–2: Possible mild effect, often side effects
- Week 3–4: More noticeable reduction in binges for many
- Week 6–8: Full therapeutic effect usually evident
- Ongoing: Effect maintained with continued use
Dosing & How to Take It
Standard Dosing
Starting dose: 30 mg once daily (usually in the morning)
Titration schedule:
- Week 1: 30 mg
- Week 2: Consider increase to 40–50 mg if tolerating well
- Week 3: May increase to 50–60 mg
- Ongoing adjustments based on response and side effects
- Typical effective dose range: 50–70 mg daily
- Maximum dose: 70 mg daily
Duration: Long-acting; lasts approximately 13 hours, so morning dose covers throughout day
How to Take It
- Once daily in the morning (take with or without food)
- Swallow whole, don't crush or chew (it's designed to release over time)
- Consistent time each day helps with effectiveness
- Take as prescribed; don't adjust dose on your own
If You Forget a Dose
- Take it as soon as you remember if it's before 2 PM
- If after 2 PM, skip the dose and take next day (to avoid sleep disruption)
- Never double dose
Timeline: When Does It Work?
Week 1
What to expect:
- Possible mild appetite suppression
- Possibly mild increase in energy or alertness
- Possible side effects (jitteriness, headache, dry mouth)
Binge reduction: Not yet typically; too early
Week 2–3
What to expect:
- Side effects usually improving
- Energy and focus may improve
- Appetite usually suppressed
- Dose may be increased
Binge reduction: Some people notice early reduction in urges; others not yet
Week 4
What to expect:
- Adjustment to medication effects
- Side effects usually much improved
- Feeling more like yourself but "different" in a good way
Binge reduction: Many people report noticeable reduction by now; some continue to improve
Week 5–8
What to expect:
- Full therapeutic effect usually apparent
- If not showing benefit by 8 weeks, dose may be increased or medication reconsidered
Binge reduction: Full effect usually evident; binges reduced in frequency, intensity, or both
Ongoing
What to expect:
- Continued benefit with continued use
- Reduced appetite may continue
- Feel more in control of eating
- Improved mood and energy often reported
Important: Full benefit takes weeks. Don't judge effectiveness too early. Stick with it for at least 6–8 weeks before deciding if it's working.
Side Effects to Expect
Common Side Effects
Early on (usually improve after 1–2 weeks):
- Dry mouth (drink water; sugar-free gum helps)
- Headache (usually mild; usually improves)
- Insomnia or sleep disruption (take in morning; avoid afternoon doses)
- Jitteriness or anxiety (usually mild and temporary)
- Nausea (usually mild and improves; take with food if helps)
- Decreased appetite (often desirable in BED context)
Ongoing:
- Appetite suppression (usually desirable)
- Occasional dry mouth
- Possible increased heart rate (monitored at visits)
- Increased blood pressure (monitored at visits)
- Emotional changes (usually positive; occasionally increased emotional sensitivity)
Less Common Side Effects
- Tremor or shakiness (mild if occurs)
- Dizziness or lightheadedness
- Constipation (rare but possible)
- Weight loss (often moderate and plateaus)
- Mood changes (most are positive; rarely irritability or mood instability)
Serious Side Effects (Rare)
Watch for and report immediately:
- Severe chest pain or pressure
- Severe headache or visual changes
- Severe allergic reaction (rash, swelling, difficulty breathing)
- Sudden severe increase in blood pressure symptoms
- Fainting or severe dizziness
- Uncontrolled movements or tremors
- Hallucinations or severe confusion
These are rare but warrant medical attention.
Managing Side Effects
Dry mouth:
- Drink plenty of water
- Sugar-free gum or lozenges
- Mouth rinse
Insomnia:
- Take in morning, not afternoon
- Avoid caffeine
- Good sleep hygiene
Jitteriness:
- Usually improves after 1–2 weeks
- Avoid extra caffeine
- Regular exercise helps
Decreased appetite:
- In BED context, usually desirable
- But ensure adequate nutrition (eat when not hungry if necessary)
- Small, frequent meals if helpful
If side effects are severe:
- Contact your prescriber
- Dose reduction might help
- Different medication might be better
Benefits & Advantages
Direct Benefits for BED
- Reduces binge frequency: Primary goal; works for about 50% of people substantially
- Reduces binge intensity: Even if frequency doesn't drop, binges may be smaller and shorter
- Reduces urges: Less internal drive to binge
- Improved impulse control: Better able to resist or delay urges
Secondary Benefits Often Reported
- Improved mood: Some people report mood improvement
- Better focus and attention: Dopamine increase can help with concentration
- Increased energy: Some report better energy and motivation
- Reduced emotional eating: Less reliant on food for emotion regulation
- Better sleep in some: Though sleep can be disrupted in others
Advantages as a Medication
- Once daily: Easy to remember and take
- Non-habit-forming when used as prescribed: Safe for ongoing use
- Long-acting: Covers your whole day
- Specific for BED: Designed specifically for this condition
- Can take indefinitely: No need to taper off if working well
Who Shouldn't Take Vyvanse
Contraindications (Don't Take If)
- History of substance abuse disorder: Stimulants carry abuse potential in this population; risk-benefit likely unfavorable
- Uncontrolled high blood pressure: Stimulants can raise blood pressure further
- Serious heart disease or cardiac arrhythmias: Stimulants can worsen these
- Glaucoma (angle-closure): Can increase eye pressure
- Monoamine oxidase inhibitor (MAOI) use: Serious drug interaction
Use With Caution If
- Mild-to-moderate high blood pressure: Can be managed with monitoring; still might be okay
- History of mild substance use (resolved): Prescriber will assess risk-benefit
- Anxiety disorders: Some people's anxiety worsens; others improve
- Thyroid disease: Can be taken but requires monitoring
- Diabetes: Can affect glucose; requires monitoring
Pregnancy & Breastfeeding
- Limited safety data: Discuss with OB/GYN and psychiatrist
- Generally avoided if possible during pregnancy due to limited data
- Other medications may be preferred
Combining Vyvanse With Therapy
Why Therapy Matters
Vyvanse reduces binge urges, but it doesn't teach skills. Therapy teaches:
- Emotion regulation: How to feel difficult emotions without food
- Cognitive skills: Challenging food rules, all-or-nothing thinking
- Behavioral strategies: Meal structure, coping skills, relapse prevention
- Underlying issues: Addressing depression, anxiety, trauma
Best Outcomes
Research and clinical experience show: Vyvanse + therapy > Vyvanse alone or therapy alone
Ideal treatment combination:
- Vyvanse: Reduces binge urges and impulse control issues
- CBT or DBT: Teaches coping skills and addresses underlying issues
- Psychiatric support: Ongoing medication monitoring and coordination
- Nutrition counseling: Supports normal eating patterns
What Therapy Looks Like
Cognitive-Behavioral Therapy (CBT) for BED:
- 12–20 sessions typically
- Addresses restriction, food rules, emotions
- Teaches specific coping skills
Dialectical Behavior Therapy (DBT):
- Particularly helpful if emotion dysregulation is prominent
- Includes individual therapy + skills groups
- More intensive but very effective
Cost & Insurance
Insurance Coverage
Most major insurance plans cover Vyvanse for BED when prescribed by a psychiatrist.
KwikPsych accepts: Aetna, BCBS, Cigna, UnitedHealthcare, Superior HealthPlan/Ambetter, Baylor Scott & White, Oscar, First Health, Optum, Medicare
Call 737-367-1230 to verify coverage and discuss copays.
Out-of-Pocket Cost
If paying out-of-pocket:
- Brand name Vyvanse: $100–300+ per month (varies by dose)
- Generic equivalent not available (Vyvanse patent protection)
- Patient assistance programs available (Shire/Takeda offers assistance for uninsured/underinsured patients)
- Check: vyvanse.com/coupon for potential discounts
Self-Pay Psychiatry at KwikPsych
- Initial evaluation: $299
- Follow-up medication management: $179
Frequently Asked Questions
How does Vyvanse differ from other ADHD stimulants?
Vyvanse is a prodrug (activates after ingestion), so it has lower abuse potential than immediate-release stimulants. It's also specifically approved for BED, whereas other stimulants aren't. It provides steady, long-lasting effect. Good choice if impulse control is a significant factor in your binge eating.
Will Vyvanse cause weight loss?
Appetite suppression is common and often leads to some weight loss, though weight loss is not the treatment goal. Weight loss varies: some lose 5–15 lbs; others lose more; some remain stable. Weight loss often plateaus after initial months. Recovery (reducing binges) is the goal; weight change is secondary.
Can I take Vyvanse if I have anxiety?
Some people with anxiety do well on Vyvanse; anxiety even improves. Others find stimulants worsen anxiety. Important to discuss with prescriber if you have anxiety. Close monitoring helps determine if Vyvanse is working for you or making anxiety worse.
What if Vyvanse doesn't work for me?
Options: dose adjustment (sometimes higher doses work better), switching to a different medication (SSRIs, topiramate), or combination approach. Not all medications work for everyone; finding the right one sometimes takes trial and adjustment.
Can I take Vyvanse long-term?
Yes. Vyvanse is safe for long-term use. Many people continue it indefinitely. Some eventually taper off after achieving stable recovery; others continue ongoing. Duration depends on individual factors and effectiveness.
Is Vyvanse a cure?
No. Vyvanse reduces binge urges and frequency for many, but it doesn't address underlying emotions or teach coping skills. It's a tool that helps, combined with therapy and behavioral change.
What if I forget to take it?
Take as soon as remembered if before 2 PM. If after 2 PM, skip that dose and resume next day. Missing occasional doses is okay; just resume your schedule.
Can I combine Vyvanse with other medications?
Usually yes, with appropriate monitoring. Some combinations require caution. Always tell your psychiatrist about all medications you're taking, including supplements.
How will I know if it's working?
Signs it's working:
- Fewer binge episodes
- Reduced intensity of binges
- Less internal drive to binge
- Better sense of control when eating urges arise
Monitoring: Your psychiatrist will ask about binge frequency at each visit.
Getting Started With Vyvanse
If you're interested in whether Vyvanse might help your binge eating, a psychiatric evaluation is the first step.
At KwikPsych in Austin, Dr. Monika Thangada, MD, provides comprehensive evaluation to determine if Vyvanse is appropriate for you, along with prescription, monitoring, and coordination with therapists.
Call 737-367-1230 or request an appointment.
Additional resources:
- Vyvanse Patient Information: www.vyvanse.com
- National Alliance for Eating Disorders Helpline: 1-866-662-1235
- Crisis Text Line: Text "HOME" to 741741
This blog post is educational and not a substitute for professional medical advice. Vyvanse is a prescription medication that should only be taken under medical supervision. Consult a psychiatrist to determine if it's right for your situation.