Transcript bYTEBoss chpt-23

The Role of Medicines
Medicines are substances that, when taken
internally or applied to the body, help prevent or
cure a disease or other medical problem
Medicines That Prevent
Disease
-a preparation, containing weakened or dead pathogens
that cause a particular disease, given to prevent one from
contracting that disease
VACCINES
immunization
Rabies
-extracts of blood fluids that contain antibodies and act more
quickly than vaccines.
ANTITOXINS
diphtheria
tetanus
Medicines that Fight Pathogens
*chemical agents that destroy disease-causing microorganisms
-Kill or prevent bacteria preventing them from
reproducing
Cardiovascular Medicine
5 MAIN
TYPES
VASODILATORS
Dilate the veins and arteries
to increase blood and
oxygen flow
Medicines That Relieve Pain
 What do you take for your headache?
ANALGESICS
 Narcotics
Aspirin
Aspirin = acetylsalicylic acid
headache
dizziness
stomach irritation
Reye's syndrome
Ibuprofen = anti-inflammatory
Acetaminophen = pain reliever/NOT anti-inflammatory
Medicines and the Body
ADDITIVE
INTERACTION
Medicines work in a POSITIVE
way
TOLERANCE
Body becomes used to the
effect of a medicine
SYNERGISTIC
EFFECT
The combination of two or
medications that cause a
GREATER effect than when
take alone
ANTAGONISTIC
INTERACTION
One medication reduces or
CANCELS out another
WITHDRAWAL
Happens when you stop
taking a medication after
you have developed a
physical dependence