Antipyretic

adj. pertaining to a substance which reduces fever

n. agent which reduces fever

Antipyretic drugs are drugs that lower your body temperature from a raised state. However, they will not affect the normal body temperature if one does not have fever.Antipyretics cause the hypothalamus to override an interleukin-induced increase in temperature. The body will then work to lower the temperature and the result is a reduction in fever.Most are also used for other purposes. For example, the most common antipyretics in the United States are aspirin and paracetamol (acetaminophen), which are used primarily as pain relievers. NSAIDs are antipyretic, anti-inflammatory, and pain relievers. There is some debate over the appropriate use of such medications: fever is part of the body's immune response to infection.
See more at Wikipedia.org...

Antipyretic /an·ti·py·ret·ic/ 1. relieving or reducing fever. 2. an agent that so acts. an·ti·py·ret·ic n. An agent that reduces or prevents fever. [more]Antipyretic - Community and Resources

Noun
1. any medicine that lowers body temperature to prevent or alleviate fever
(synonym) febrifuge
(hypernym) medicine, medication, medicament, medicinal drug
Adjective
1. preventing or alleviating fever
(antonym) pyretic

(n.)
A febrifuge.
  

(a.)
Efficacious in preventing or allaying fever.