lisdexamfetamine vs melatonin

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Side-by-side comparison of lisdexamfetamine and melatonin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

From a pharmacokinetic perspective, no dose adjustment for drugs that are substrates of CYP1A2 (e.g., theophylline, duloxetine, melatonin), CYP2D6 (e.g., atomoxetine, desipramine, venlafaxine), CYP2C19 (e.g., omeprazole, lansoprazole, clobazam), and CYP3A4 (e.g., midazolam, pimozide, simvastatin) is necessary when VYVANSE is co-administered [see Clinical Pharmacology (12.3) ] .

Drug Class
lisdexamfetamine CNS Stimulant
melatonin Hormone Supplement (Sleep Aid)
Type
lisdexamfetamine Prescription
melatonin Over-the-Counter
Summary
lisdexamfetamine

Lisdexamfetamine (Vyvanse) is a stimulant medicine. It can help improve focus and reduce impulsive behavior.

melatonin

Melatonin is a hormone supplement that can help with sleep. You should take it 15 minutes before eating.

What It Treats
lisdexamfetamine

This medicine treats Attention Deficit Hyperactivity Disorder (ADHD) in adults and kids 6 years and older. It also treats moderate to severe binge eating disorder (BED) in adults. This medicine is not for weight loss.

melatonin

This medicine is used to help with sleep problems. It can help you fall asleep and stay asleep. Talk to your doctor if your sleep problems continue.

How It Works
lisdexamfetamine

Lisdexamfetamine affects chemicals in your brain. These chemicals help control hyperactivity and impulses. It can also help reduce binge eating.

melatonin

Melatonin is a hormone that your brain makes. It helps control your sleep and wake cycles. Taking this medicine adds more melatonin to your body.

Common Side Effects
lisdexamfetamine
  • Anorexia
  • Anxiety
  • Decreased appetite
  • Weight loss
  • Diarrhea
melatonin
  • Tiredness
  • Nausea
  • Diarrhea
  • Headache
  • Dizziness
FAERS Reports
lisdexamfetamine
  • Intentional Overdose 1,068
  • Intentional Self-Injury 1,009
  • Product Availability Issue 487
  • Fatigue 402
  • Headache 377
melatonin
  • Fatigue 4,196
  • Nausea 3,592
  • Diarrhoea 2,866
  • Headache 2,798
  • Dyspnoea 2,436
Serious Warnings
lisdexamfetamine

This medicine has a high risk for abuse, misuse, and addiction. Misusing it can lead to overdose and death. Your doctor will check your risk before and during treatment. Store this medicine safely and do not share it with anyone.

melatonin

No specific warnings noted.

Pregnancy
lisdexamfetamine

This medicine may harm your unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Breastfeeding is not recommended while taking this medicine.

melatonin

It is not known if this medicine is safe to take during pregnancy or while breastfeeding. Talk to your doctor before taking it if you are pregnant or breastfeeding.

Also Compare, Nearby Drugs

How to Read This lisdexamfetamine vs melatonin Comparison

lisdexamfetamine is classified in the CNS Stimulant drug class, while melatonin sits within the Hormone Supplement (Sleep Aid) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are split between OTC and prescription status, which affects access and supervision.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, lisdexamfetamine has 3,343 submissions while melatonin has 15,888. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to lisdexamfetamine does not change how the body's enzymes break down melatonin.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for lisdexamfetamine or melatonin.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.