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duloxetine vs lisdexamfetamine

Side-by-side comparison of duloxetine and lisdexamfetamine. 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) ] .

Recommendation: No dose adjustments are required for this combination. Continue taking your medications as scheduled.

Drug Class
duloxetine Serotonin-Norepinephrine Reuptake Inhibitor (SNRI)
lisdexamfetamine CNS Stimulant
Type
duloxetine Prescription
lisdexamfetamine Prescription
Summary
duloxetine

Duloxetine is a medicine that can help treat depression and anxiety. It can also help with certain types of pain.

lisdexamfetamine

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

What It Treats
duloxetine

Duloxetine can treat major depressive disorder and generalized anxiety disorder in adults and children (7 years and older). It can also treat diabetic nerve pain, fibromyalgia, and chronic muscle or bone pain in adults. In children, it can treat fibromyalgia (13 years and older).

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.

How It Works
duloxetine

Duloxetine is a type of drug called an SNRI. It works by increasing the levels of serotonin and norepinephrine in your brain. These chemicals can help improve mood and reduce pain.

lisdexamfetamine

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

Common Side Effects
duloxetine
  • Nausea
  • Dry mouth
  • Sleepiness
  • Constipation
  • Decreased appetite
lisdexamfetamine
  • Anorexia
  • Anxiety
  • Decreased appetite
  • Weight loss
  • Diarrhea
FAERS Reports
duloxetine
  • Tiredness 4,788
  • Feeling sick to your stomach 4,783
  • Aches or soreness 3,698
  • Head pain 3,653
  • Loose stools 3,262
lisdexamfetamine
  • Taking too much medicine on purpose 1,068
  • Purposely hurting yourself 1,009
  • Problem getting the medicine 487
  • Feeling tired 402
  • Head pain 377
Serious Warnings
duloxetine

Antidepressants may increase the risk of suicidal thoughts and behaviors in children, teenagers, and young adults. Watch closely for worsening depression or suicidal thoughts. Tell your doctor right away if you notice any changes in mood or behavior.

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.

Pregnancy
duloxetine

Using duloxetine in the last month of pregnancy may cause problems in the newborn. Talk to your doctor about the risks and benefits of taking duloxetine during pregnancy. Women who stop taking antidepressants during pregnancy are more likely to experience a relapse of depression.

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.

Also Compare, Nearby Drugs

How to Read This duloxetine vs lisdexamfetamine Comparison

duloxetine is classified in the Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) drug class, while lisdexamfetamine sits within the CNS Stimulant class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, duloxetine has 20,184 submissions while lisdexamfetamine has 3,343. 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 this adhd medicine does not change how your body breaks down this antidepressant. they do not have a significant chemical interaction in the liver.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between duloxetine and lisdexamfetamine - always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.