Drug - adjusting physiology of an individual for medical
Lectures Page 1 Physiological dose - normal dose for regular supplement
Pharmacological dose - a dose that is given to cure a deficiency
(vitamin) Medicine - keeps body in homeostasis
Poison - affects the receptors and
Drugs - puts body out of homeostasis
puts it out of homeostasis
All poisons are drugs not vice versa
Not a drug when using on
Drug when used to clean wound
Often carbon based. Have an effect on
excitable membranes like muscles/neurons
Ligand - something that binds to a receptor
Drug molecules stabilize the protein molecule in inactivated/activated state.
Can attract to membranes non-specifically.
Lectures Page 2 How the drug enters the body and spreads and leaves the body
Entry to the body
How it distributes
One method of excretion. Fat soluble compounds need to
be converted to water soluble for it to be excreted. Done
Done by kidney
Mechanism of drug action
Effect of the drug on protein (open / close ion
channel). What it does after it enters the body.
Lectures Page 3 How it acts on you
Effects that it has on you
Lectures Page 4 Lectures Page 5 Many plants are poisonous. Scientists use it in small doses to treat diseases.