amitriptyline vs desipramine

PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.

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

Drug Class
amitriptyline Tricyclic Antidepressant (TCA)
desipramine Tricyclic Antidepressant (TCA)
Type
amitriptyline Prescription
desipramine Prescription
Summary
amitriptyline

Amitriptyline is a medicine used to treat depression. It may take up to 30 days to feel the full effect.

desipramine

Desipramine is a medicine used to treat depression. It belongs to a class of drugs called tricyclic antidepressants.

What It Treats
amitriptyline

Amitriptyline is used to relieve the symptoms of depression. It works best for a type of depression called endogenous depression. This is depression that comes from within, rather than being caused by outside events.

desipramine

Desipramine is used to treat depression. Depression can cause feelings of sadness, loss of interest, and trouble functioning in daily life. This medicine can help improve your mood and overall well-being.

How It Works
amitriptyline

Amitriptyline belongs to a class of drugs called tricyclic antidepressants (TCAs). It works by increasing the levels of certain chemicals in your brain. These chemicals help improve your mood.

desipramine

Desipramine works by affecting certain chemicals in the brain. It helps to increase the levels of norepinephrine. This can improve mood and reduce symptoms of depression.

Common Side Effects
amitriptyline
  • Drowsiness
  • Dizziness
  • Weakness
  • Fatigue
  • Headache
desipramine
  • Drowsiness
  • Dizziness
  • Dry mouth
  • Constipation
  • Blurred vision
FAERS Reports
amitriptyline
  • Pain 1,565
  • Nausea 1,434
  • Headache 1,381
  • Fatigue 1,371
  • Dyspnoea 1,340
desipramine
  • Fatigue 119
  • Completed Suicide 116
  • Nausea 77
  • Headache 70
  • Weight Increased 68
Serious Warnings
amitriptyline

Antidepressants may increase the risk of suicidal thoughts or actions in children, teens, and young adults. Your doctor should closely monitor you for worsening depression or unusual changes in behavior. Amitriptyline is not approved for use in children.

desipramine

Antidepressants may increase the risk of suicidal thoughts or actions in children, teens, and young adults. Watch for worsening depression, unusual behavior, or thoughts of suicide. Desipramine is not approved for use in children.

Pregnancy
amitriptyline

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

desipramine

Tell your doctor if you are pregnant or plan to become pregnant. Desipramine may affect your baby. Talk to your doctor about the risks and benefits of taking this medicine while pregnant or breastfeeding.

Also Compare, Nearby Drugs

How to Read This amitriptyline vs desipramine Comparison

amitriptyline is classified in the Tricyclic Antidepressant (TCA) drug class, while desipramine sits within the Tricyclic Antidepressant (TCA) class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. 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, amitriptyline has 7,091 submissions while desipramine has 450. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. 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 amitriptyline or desipramine.

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