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Two medicines, side by side

Baclofen vs diazepam

Baclofen and diazepam are both labeled for muscle spasms and spasticity. Drugs@FDA records approvals of baclofen since 1977 and of diazepam since 1963. Pharmacies paid $0.032 per baclofen 10 mg tablet and $0.0283 per diazepam 10 mg tablet (NADAC, October 7, 2026). In FDA's classes, baclofen is a gamma-aminobutyric acid-ergic agonist and diazepam a benzodiazepine.

Check it at the source: the baclofen FDA label on DailyMed (effective August 12, 2024); the diazepam FDA label on DailyMed (effective August 11, 2026).

Highlights of the baclofen record

Baclofen (Gablofen) · label of August 12, 2024

Used for

From the label: indications

Baclofen tablets USP are useful for the alleviation of signs and symptoms of spasticity resulting from multiple sclerosis, particularly for the relief of flexor spasms and concomitant pain, clonus, and muscular rigidity. Patients should have reversible spasticity so that baclofen treatment will aid in restoring residual function. […]

On the market

Earliest approval on file
November 22, 1977
Generic labelers
55 labelers
Pharmacy cost
$0.032 per tablet

Supply and safety

Shortage
No current entry
Recalls
3

Highlights of the diazepam record

Diazepam (Valium) · label of August 11, 2026

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 in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required.

Used for

From the label: indications

Valium is indicated for the management of anxiety disorders or for the short- term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. In acute alcohol withdrawal, Valium may be useful in the symptomatic relief of acute agitation, tremor, impending or acute delirium tremens and hallucinosis. […]

On the market

Earliest approval on file
November 15, 1963
Generic labelers
45 labelers
Pharmacy cost
$0.0283 per tablet

Supply and safety

Shortage
No current entry
Recalls
8

Source: FDA drug labels via openFDA (Baclofen label of August 12, 2024, Diazepam label of August 11, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do baclofen and diazepam differ on the record?

In FDA's classes, baclofen is a gamma-aminobutyric acid-ergic agonist and diazepam a benzodiazepine.

Only the diazepam label carries a boxed warning.

Generics: baclofen since 1988; diazepam since 1985 (Drugs@FDA).

DEA schedule: baclofen none; diazepam CIV.

BaclofenDiazepam
Labeled forMuscle spasms and spasticityAnxiety, Muscle spasms and spasticity
Pharmacologic classgamma-Aminobutyric Acid-ergic AgonistBenzodiazepine
How it works (label)n/an/a
Half-life (label)n/aThe initial distribution phase has a half-life of approximately 1 hour, although it may range up to >3 hours.
Earliest approval on file (Drugs@FDA)November 22, 1977November 15, 1963
First generic approvedJuly 21, 1988September 4, 1985
Generic labelers (NDC)55 labelers45 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.032 per tablet (Baclofen 10 mg tablet)$0.0283 per tablet (Diazepam 10 mg tablet)
12-month price change-12%-5%
Boxed warningNoYes
Shortage nowNo current entryNo current entry
Recalls recorded38
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)88,351121,010
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 do the labels say about using others of their kind?

Diazepam label, drug interactions

Centrally Acting Agents If Valium is to be combined with other centrally acting agents, careful consideration should be given to the pharmacology of the agents employed particularly with compounds that may potentiate or be potentiated by the action of Valium, such as phenothiazines, antipsychotics, anxiolytics/sedatives, hypnotics, anticonvulsants, narcotic analgesics, anesthetics, sedative antihistamines …

Source: FDA drug labels via openFDA

What next?

Alternatives to baclofen
every medicine labeled for the same conditions