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Diphtheria Antitoxin

PT Bio Farma · FDA-approved active Biologic ✓ Verified May 2026

Diphtheria Antitoxin is a Antitoxin (passive immunotherapy) Biologic drug developed by PT Bio Farma. It is currently FDA-approved for Diphtheria (treatment and prevention of complications from diphtheria toxin).

Diphtheria antitoxin is a passive immunotherapy that provides immediate neutralization of diphtheria toxin by binding and inactivating the exotoxin produced by Corynebacterium diphtheriae.

Diphtheria Antitoxin is a protein-based treatment used to counteract diphtheria, a bacterial infection. It is studied in clinical trials for various conditions, including diphtheria, pertussis, tetanus, hepatitis B, and Haemophilus infections, often in combination with other vaccines.

At a glance

Generic nameDiphtheria Antitoxin
SponsorPT Bio Farma
Drug classAntitoxin (passive immunotherapy)
TargetDiphtheria toxin
ModalityBiologic
Therapeutic areaInfectious Disease
PhaseFDA-approved

Mechanism of action

The antitoxin consists of antibodies (typically from immunized horses or humans) that directly bind to circulating diphtheria toxin, preventing it from damaging tissues. This provides rapid but temporary protection, as the antibodies are gradually cleared from the body. It is most effective when administered early in infection, before toxin has caused irreversible tissue damage.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about Diphtheria Antitoxin

What is Diphtheria Antitoxin?

Diphtheria Antitoxin is a Antitoxin (passive immunotherapy) drug developed by PT Bio Farma, indicated for Diphtheria (treatment and prevention of complications from diphtheria toxin).

How does Diphtheria Antitoxin work?

Diphtheria antitoxin is a passive immunotherapy that provides immediate neutralization of diphtheria toxin by binding and inactivating the exotoxin produced by Corynebacterium diphtheriae.

What is Diphtheria Antitoxin used for?

Diphtheria Antitoxin is indicated for Diphtheria (treatment and prevention of complications from diphtheria toxin).

Who makes Diphtheria Antitoxin?

Diphtheria Antitoxin is developed and marketed by PT Bio Farma (see full PT Bio Farma pipeline at /company/pt-bio-farma).

What drug class is Diphtheria Antitoxin in?

Diphtheria Antitoxin belongs to the Antitoxin (passive immunotherapy) class. See all Antitoxin (passive immunotherapy) drugs at /class/antitoxin-passive-immunotherapy.

What development phase is Diphtheria Antitoxin in?

Diphtheria Antitoxin is FDA-approved (marketed).

What are the side effects of Diphtheria Antitoxin?

Common side effects of Diphtheria Antitoxin include Serum sickness, Hypersensitivity reactions, Anaphylaxis.

What does Diphtheria Antitoxin target?

Diphtheria Antitoxin targets Diphtheria toxin and is a Antitoxin (passive immunotherapy).

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing