pyrogen

Substance causing fever

A pyrogen is a substance that causes fever when introduced into the body.

The term appears most often in medical and pharmaceutical contexts, where manufacturers must ensure that injectable drugs and IV fluids are pyrogen-free: The batch was rejected due to pyrogen contamination.

Bacterial toxins are common pyrogens, but the body also produces its own in response to infection.

fever

febrile

Having a fever

shivering · temperature · malaise · thermometer · illness · infection · sepsis · typhoid · malaria · flu

exogenous

endotoxin

Bacterial wall toxin

  • exotoxinPoison bacteria secrete
  • bacteriaNucleus-free single-celled organisms
  • virusMicroscopic infectious agent

pathogen · microorganism · antigen · toxoid · adjuvant · infectious agent · immunogenic · antigenic · contamination

pharmaceutical

sterility

Absence of microbes or fertility

parenteral · quality control · USP · filtration · autoclave · validation · testing

inflammation

cytokines

Immune signaling proteins

swelling · redness · acute · chronic · proinflammatory · immunopathology · hypothalamus · thermoregulation

endogenous

cytokines

Immune signaling proteins

thermoregulation · immune response · proinflammatory · leukocytes · macrophages · monocytes

Opposites
effect on body temperature

pyrogenantipyretic

Fever-reducing agent

fever reducer · cryogen · acetaminophen · ibuprofen · aspirin

thermal effect on systems

pyrogencryogen

Ultralow-temperature fluid

refrigerant · coolant · endotherm · heat sink · cold pack

Family

pyrogenic

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Rated G