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Two medicines, side by side

Doxepin vs clonazepam

Doxepin and clonazepam are both labeled for anxiety. Drugs@FDA records approvals of doxepin since 1969 and of clonazepam since 1975. Pharmacies paid $0.0779 per doxepin 10 mg capsule and $0.0244 per clonazepam 1 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, doxepin is a tricyclic antidepressant and clonazepam a benzodiazepine.

Check it at the source: the doxepin FDA label on DailyMed (effective December 30, 2025); the clonazepam FDA label on DailyMed (effective December 1, 2025).

Highlights of the doxepin record

Doxepin (Sinequan) · label of December 30, 2025

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 doxepin 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

Doxepin Hydrochloride is recommended for the treatment of: Psychoneurotic patients with depression and/or anxiety. Depression and/or anxiety associated with alcoholism (not to be taken concomitantly with alcohol). Depression and/or anxiety associated with organic disease (the possibility of drug interaction should be considered if the patient is receiving other drugs concomitantly). […]

On the market

Earliest approval on file
September 23, 1969
Generic labelers
49 labelers
Pharmacy cost
$0.0779 per capsule

Supply and safety

Shortage
No current entry
Recalls
2

Highlights of the clonazepam record

Clonazepam (Klonopin) · label of December 1, 2025

Boxed warning

RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE, MISUSE, AND ADDICTION; and DEPENDENCE AND WITHDRAWAL REACTIONS Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs for patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required.

Used for

From the label: indications

Seizure Disorders Klonopin is useful alone or as an adjunct in the treatment of the Lennox-Gastaut syndrome (petit mal variant), akinetic, and myoclonic seizures. In patients with absence seizures (petit mal) who have failed to respond to succinimides, Klonopin may be useful. Some loss of effect may occur during the course of clonazepam treatment (see PRECAUTIONS: Loss of Effect ). […]

On the market

Earliest approval on file
June 4, 1975
Generic labelers
31 labelers
Pharmacy cost
$0.0244 per tablet

Supply and safety

Shortage
In shortage
Recalls
7

Source: FDA drug labels via openFDA (Doxepin label of December 30, 2025, Clonazepam label of December 1, 2025); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do doxepin and clonazepam differ on the record?

In FDA's classes, doxepin is a tricyclic antidepressant and clonazepam a benzodiazepine.

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

Generics: doxepin since 1986; clonazepam since 1996 (Drugs@FDA).

DEA schedule: doxepin none; clonazepam CIV.

DoxepinClonazepam
Labeled forDepression, Anxiety, Eczema (atopic dermatitis), InsomniaSeizures and epilepsy, Anxiety
Pharmacologic classTricyclic AntidepressantBenzodiazepine
How it works (label)n/an/a
Half-life (label)n/aThe elimination half-life of clonazepam is typically 30 to 40 hours.
Earliest approval on file (Drugs@FDA)September 23, 1969June 4, 1975
First generic approvedMay 13, 1986September 10, 1996
Generic labelers (NDC)49 labelers31 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0779 per capsule (Doxepin 10 mg capsule)$0.0244 per tablet (Clonazepam 1 mg tablet)
12-month price change-9%-14%
Boxed warningYesYes
Shortage nowNo current entryIn shortage
Recalls recorded27
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)12,554159,283
DEA schedulenoneCIV

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 next?

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