Chapter 19: Medicine and Drugs


Terms in this set (...)

drugs that are used to treat or prevent diseases or other conditions
substances other than food that change the structure or function of the body or mind
1. prevent disease
2. fight pathogens
3. relieve pain and other symptoms
4. manage chronic conditions, help maintain or restore health, and regulate body systems
What are The Four categories Medicine that treat or prevent illness?
Vaccines: preparation that prevents a person from contracting a specific disease
-Weakened or dead pathogens
-Antibodies produced to fight pathogens - memory cells to remember how to make antibodies
-Protection may fade over time - tetanus & flu shot
How do you Prevent Disease?
preparation that prevents a person from contracting a specific disease
1. Antibiotics: class of drug that destroy disease-causing microorganisms (bacteria)
-Either kill harmful bacteria or prevent it from reproducing
-Bacteria can become resistant if: 1. antibiotics are overused 2. when a patient does not take the full prescription
2. Antivirals & -Antifungals
-Antivirals: suppress the virus but the virus is still in the body
-Antifungals: suppress or kill fungus cells
How do you fight Pathogens?
class of drug that destroy disease-causing microorganisms (bacteria)
suppress the virus but the virus is still in the body
suppress or kill fungus cells
determining factors
what the medicine is used for, and how it will most quickly and effectively help a person
oral meds
taken by mouth in the form of tablets, capsules, or liquids. Pass from digestive system to bloodstream
topical meds
applied to skin
inhaled meds
delivered in a fine mist or powder
injected meds
delivered through a shot and go directly into the bloodstream
side effects
reactions to medicine other than the one intended
medicine interactions
2 meds at once or taken with food
additive interaction
medicines work together in a positive way
synergistic effect
interaction of 2 or more meds that result in a greater effect than when each is taken alone
antagonistic interaction
effect of 1 medicine is canceled or reduced when taken with another
1. tolerance
2. withdrawal
When a person takes medication for a long period of time, the body can become used to the medicine. Problems that may occur include:
body becomes used to the effect of medicine. The body requires larger doses to produce the same effects. Can also experience "reverse tolerance."
occurs when a person stops using a medicine which they've become physiologically dependent on.
prescription medicines
dispensed only with the written approval of a licensed physician or nurse-practitioner
Over-the-counter (OTC) medicines
can be bought without doctor's prescription
active ingredients
ingredients that treat condition
inactive ingredients
substances that don't treat condition (color/flavor)
conditions/symptoms treated
side effects, interactions, when to talk to doctor, when not to take it
category and what product is supposed to do
medicine misuse
using a medicine in ways other than the intended use
medicine abuse
intentionally taking meds for nonmedical reasons
drug overdose
strong, sometimes fatal reaction to taking a large amount of a drug