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This vaccine protects against diphtheria, tetanus, and pertussis.


Active ingredients:

Diphtheria toxoid, tetanus toxoid, inactivated pertussis toxin, filamentous hemagglutinin (a cell surface protein), and pertactin, which is a protein on the outer surface of the cell.

Inactive ingredients:
Amounts are based on a 0.5 mL dose

Adjuvants: strengthen the immune response to the vaccine

Salts: help maintain the stability and pH of the vaccine


Relevant Terms:

  • Adjuvant: a compound added to some vaccines to strengthen the immune response

  • Antibody: a protein made by the immune system in response to a foreign particle (antigen). These proteins circulate in the blood and help defend the body against the substance.

  • Antigen: This is any substance that triggers the immune system to create antibodies. For example, allergens such as pollen are antigens.

  • Antitoxin: an antibody that neutralizes toxins

  • Bacterium: The singular of bacteria (one bacterium, two bacteria)

  • Carbohydrates: This is another word for sugars.

  • Emulsifier: a substance that helps to keep the ingredients mixed together

  • pH: a measure of how acidic or basic a solution is. The scale ranges from 0 (very acidic) to 14 (very basic). A pH of 7 is neutral.

  • Toxoid: an inactive version of a toxin produced by a bacterium. The body is able to make antitoxin without being exposed to the actual toxin. Toxoids are not toxic.

Relevant Terms


Last updated: Mar. 4, 2023

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