pharmacology definition

Pharmacology
the study of drug and their action on the body

therapeutics
the study of drugs used to treat, cure, or prevent disease

pharmacotherapy
pharmacology and therapeutics combined.
concept: disease management

Respiratory Care pharmacology
application of pharmacology to cardiopulmonary disease and critical care.
the study of drug, their origins, properties, interactions with living organisms.

Drug
a chemical that alters an organisms functions or processes.

Additive effect
2 drugs give an effect is equal the sum of their individual effect. 1+1=2

synergism
two drugs give an effect greater than the simple sum of their effects. both drugs are active, team concept. 1+1=3

potentiation
one drug is inactive, nevertheless increases the response of the other drug. 1+0=3

Antagonism
2 drugs with opposing effects

cumulation
occurs when drugs rate of removal or inactivation is slower than the rate of administration.

tolerance
increasing amount of a drug are needed to produce same effect.

desensitization
cells become less responsive to drug because of exposure to drug overtime

tachypylaxis
rapidly developing tolerance

idiosyncratic effect
opposite effect or unusual of what is expected

hypersensitivity
allergy or immune mediated response, can be life threatening. ex. epi-pen

half life
time for drug concentration to decrease by half.

steady state
maximum concentration

loading dose
given at higher doses

maintenance dose
administered at lower doses once steady state is achieve.

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Define Half-Life t½ means half life – The time it takes for blood levels of drug to decrease to half of what it was at equilibrium. If maximum level is 16 mg and the half life is 2 hours, after …

1. pharmacology Pharmacology is defined as the study of the interaction of chemical substances with living systems. 2.Drug A chemical substance that acts on living systems through chemical processes, which is utilized for diagnosis, prevention and cure of an unwanted …

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