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Two medicines, side by side

Nortriptyline vs escitalopram

Nortriptyline and escitalopram are both labeled for depression. Drugs@FDA records approvals of nortriptyline since 1964 and of escitalopram since 2002. Pharmacies paid $0.113 per nortriptyline HCl 10 mg capsule and $0.0632 per escitalopram 20 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, nortriptyline is a tricyclic antidepressant and escitalopram a serotonin reuptake inhibitor.

Check it at the source: the nortriptyline FDA label on DailyMed (effective December 4, 2024); the escitalopram FDA label on DailyMed (effective October 1, 2023).

Highlights of the nortriptyline record

Nortriptyline (Pamelor) · label of December 4, 2024

Boxed warning

Suicidality and Antidepressant Drugs Antidepressants increased the risk compared to placebo of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults in short-term studies of major depressive disorder (MDD) and other psychiatric disorders. Anyone considering the use of nortriptyline hydrochloride or any other antidepressant in a child, adolescent, or young adult must balance this risk with the clinical need.

Used for

From the label: indications

Pamelor™ (nortriptyline HCl) is indicated for the relief of symptoms of depression. Endogenous depressions are more likely to be alleviated than are other depressive states.

On the market

Earliest approval on file
November 6, 1964
Generic labelers
25 labelers
Pharmacy cost
$0.113 per capsule

Supply and safety

Shortage
No current entry
Recalls
2

Highlights of the escitalopram record

Escitalopram (Lexapro) · label of October 1, 2023

Boxed warning

SUICIDAL THOUGHTS AND BEHAVIORS Antidepressants increased the risk of suicidal thoughts and behaviors in pediatric and young adult patients in short-term studies. Closely monitor all antidepressant-treated patients for clinical worsening, and for emergence of suicidal thoughts and behaviors [see Warnings and Precautions ( 5.1 )]. Lexapro is not approved for use in pediatric patients less than 7 years of age [ s ee Use in Specific Populations ( 8.4 )].

Used for

From the label: indications

Lexapro is indicated for the treatment of: • major depressive disorder (MDD) in adults and pediatric patients 12 years of age and older. • generalized anxiety disorder (GAD) in adults and pediatric patients 7 years of age and older. […]

On the market

Earliest approval on file
August 14, 2002
Generic labelers
43 labelers
Pharmacy cost
$0.0632 per tablet

Supply and safety

Shortage
No current entry
Recalls
1

Source: FDA drug labels via openFDA (Nortriptyline label of December 4, 2024, Escitalopram label of October 1, 2023); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do nortriptyline and escitalopram differ on the record?

In FDA's classes, nortriptyline is a tricyclic antidepressant and escitalopram a serotonin reuptake inhibitor.

Both labels carry a boxed warning; the records quote them.

Generics: nortriptyline since 1992; escitalopram since 2007 (Drugs@FDA).

NortriptylineEscitalopram
Labeled forDepressionDepression, Anxiety
Pharmacologic classTricyclic AntidepressantSerotonin Reuptake Inhibitor
How it works (label)n/aThe mechanism of antidepressant action of escitalopram, the S-enantiomer of racemic citalopram, is presumed to be linked to potentiation of serotonergic activity in the central nervous system (CNS) resulting from its inhibition of CNS …
Half-life (label)n/aElimination Biotransformation of escitalopram is mainly hepatic, with a mean terminal half-life of about 27-32 hours.
Earliest approval on file (Drugs@FDA)November 6, 1964August 14, 2002
First generic approvedMarch 30, 1992July 31, 2007
Generic labelers (NDC)25 labelers43 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.113 per capsule (Nortriptyline HCl 10 mg capsule)$0.0632 per tablet (Escitalopram 20 mg tablet)
12-month price change-2%-12%
Boxed warningYesYes
Shortage nowNo current entryNo current entry
Recalls recorded21
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)5,761139,519
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What do the labels say about using others of their kind?

Nortriptyline label, warnings

If concomitant use of Pamelor with other serotonergic drugs, including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, buspirone, tryptophan, and St. John’s Wort is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases.

Escitalopram label, drug interactions

Concomitant use of Lexapro and other serotonergic drugs (including other SSRIs, SNRIs, triptans, tricyclic antidepressants, opioids, lithium, buspirone, amphetamines, tryptophan, and St. John's Wort) increases the risk of serotonin syndrome.

Source: FDA drug labels via openFDA

What next?

Alternatives to nortriptyline
every medicine labeled for the same conditions