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buspirone vs duloxetine

Side-by-side comparison of buspirone and duloxetine. 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

7.14 Other Serotonergic Drugs The concomitant use of serotonergic drugs (including other SNRIs, SSRIs, triptans, tricyclic antidepressants, opioids, lithium, buspirone, amphetamines, tryptophan, and St.

Recommendation: Your doctor should watch you closely for symptoms like confusion, sweating, or a fast heart rate.

Drug Class
buspirone Azapirone Anxiolytic
duloxetine Serotonin-Norepinephrine Reuptake Inhibitor (SNRI)
Type
buspirone Prescription
duloxetine Prescription
Summary
buspirone

Buspirone is a medicine that can help manage anxiety disorders. It can also provide short-term relief from anxiety symptoms.

duloxetine

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

What It Treats
buspirone

Buspirone is used to manage anxiety disorders. It can also help relieve anxiety symptoms for a short time. This medicine is often used for Generalized Anxiety Disorder (GAD), which involves constant worry and tension.

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).

How It Works
buspirone

Buspirone affects certain chemicals in your brain that may be unbalanced. This helps to reduce anxiety. It is different from other anxiety medicines like benzodiazepines.

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.

Common Side Effects
buspirone
  • Dizziness
  • Nausea
  • Headache
  • Nervousness
  • Lightheadedness
duloxetine
  • Nausea
  • Dry mouth
  • Sleepiness
  • Constipation
  • Decreased appetite
FAERS Reports
buspirone
  • Tiredness 759
  • Feeling sick to your stomach 744
  • Head pain 675
  • Worry 636
  • Aches 541
duloxetine
  • Tiredness 4,788
  • Feeling sick to your stomach 4,783
  • Aches or soreness 3,698
  • Head pain 3,653
  • Loose stools 3,262
Serious Warnings
buspirone

You should not take buspirone if you are taking a monoamine oxidase inhibitor (MAOI) antidepressant or have taken one in the past 14 days. Do not start buspirone if you are being treated with linezolid or intravenous methylene blue because of the risk of serotonin syndrome. Serotonin syndrome is a very serious condition.

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.

Pregnancy
buspirone

Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. It is not known if buspirone will harm your unborn baby. Buspirone may pass into breast milk.

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.

Also Compare, Nearby Drugs

How to Read This buspirone vs duloxetine Comparison

buspirone is classified in the Azapirone Anxiolytic drug class, while duloxetine sits within the Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) 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, buspirone has 3,355 submissions while duloxetine has 20,184. 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 both of these medicines increase a brain chemical called serotonin, which can cause a dangerous reaction if levels get too high.. 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 buspirone and duloxetine - 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.