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Two medicines, side by side

Nortriptyline vs citalopram

Nortriptyline and citalopram are both labeled for depression. Drugs@FDA records approvals of nortriptyline since 1964 and of citalopram since 1998. Pharmacies paid $0.113 per nortriptyline HCl 10 mg capsule and $0.026 per citalopram hbr 10 mg tablet (NADAC, October 7, 2026). In FDA's classes, nortriptyline is a tricyclic antidepressant and citalopram a serotonin reuptake inhibitor.

Check it at the source: the nortriptyline FDA label on DailyMed (effective December 4, 2024); the citalopram FDA label on DailyMed (effective October 9, 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 citalopram record

Citalopram (Celexa) · label of October 9, 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 m onitor all antidepressant-treated patients for clinical worsening, and for emergence of suicidal thoughts and behaviors [see Warnings and Precautions ( 5.1 )]. CELEXA is not approved for use in pediatric patients [see Use in Specific Populations ( 8.4 )].

Used for

From the label: indications

CELEXA is indicated for the treatment of major depressive disorder (MDD) in adults [see Clinical Studies ( 14 )]. CELEXA is a selective serotonin reuptake inhibitor (SSRI) indicated for the treatment of major depressive disorder (MDD) in adults ( 1 ).

On the market

Earliest approval on file
July 17, 1998
Generic labelers
35 labelers
Pharmacy cost
$0.026 per tablet

Supply and safety

Shortage
No current entry
Recalls
5

Source: FDA drug labels via openFDA (Nortriptyline label of December 4, 2024, Citalopram label of October 9, 2023); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do nortriptyline and citalopram differ on the record?

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

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

Generics: nortriptyline since 1992; citalopram since 2004 (Drugs@FDA).

NortriptylineCitalopram
Labeled forDepressionDepression
Pharmacologic classTricyclic AntidepressantSerotonin Reuptake Inhibitor
How it works (label)n/aThe mechanism of action of citalopram is unclear, but is presumed to be related to potentiation of serotonergic activity in the central nervous system (CNS) resulting from its inhibition of CNS neuronal reuptake of serotonin (5-HT).
Half-life (label)n/aBiotransformation of citalopram is mainly hepatic, with a mean terminal half-life of about 35 hours.
Earliest approval on file (Drugs@FDA)November 6, 1964July 17, 1998
First generic approvedMarch 30, 1992October 28, 2004
Generic labelers (NDC)25 labelers35 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.113 per capsule (Nortriptyline HCl 10 mg capsule)$0.026 per tablet (Citalopram hbr 10 mg tablet)
12-month price change-2%+6%
Boxed warningYesYes
Shortage nowNo current entryNo current entry
Recalls recorded25
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)5,761136,040
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.

Citalopram label, drug interactions

Concomitant use of CELEXA 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
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