Last reviewed · How we verify

Comparator: Infanrix™

Merck Sharp & Dohme LLC · FDA-approved active Biologic

Infanrix is a combination vaccine that stimulates the immune system to produce antibodies against diphtheria, tetanus, and pertussis (whooping cough) pathogens.

Infanrix is a combination vaccine that stimulates the immune system to produce antibodies against diphtheria, tetanus, and pertussis (whooping cough) pathogens. Used for Prevention of diphtheria, tetanus, and pertussis in infants and children (primary series and boosters).

At a glance

Generic nameComparator: Infanrix™
SponsorMerck Sharp & Dohme LLC
Drug classCombination vaccine (inactivated toxoid and acellular pertussis)
ModalityBiologic
Therapeutic areaImmunology / Infectious Disease
PhaseFDA-approved

Mechanism of action

Infanrix contains inactivated toxoids of diphtheria and tetanus, along with acellular pertussis antigens, which trigger adaptive immune responses without causing disease. The vaccine primes both humoral (antibody) and cellular immunity to protect against these three bacterial infections. It is administered as part of the standard childhood immunization schedule.

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

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: