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pharmacy and pharmacology
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PHARMACOLOGYNJIRU R.
, Objective
By the end of this unit the learner should be able to administ
drugs safely in the management of patients and to promote
health and prevent illness.
,INTRODUCTION TO PHARMACOLOGY
• Definition of terms:
Pharmacology is the study of effects of chemical substances on the
function of living systems.
pharmacology is the science of drugs which includes their preparation
use and effects.
It is also the science that deals with the origin, chemistry, effects and u
of drugs.
Pharmacy: Branch of health science that deals with preparation and
dispensing of drugs.
pharmacotherapy: The study of therapeutic uses and effects of drugs.
, Terminology
Pharmacognosy: the study of drugs that come from natural source
e.g. plants, animals and minerals as well as search for new drugs fro
natural sources.
Pharmacokinetics :this is the study of the body acts on the drugs;
is characterized by absorption, distribution,
metabolism(biotransformation)and excretion/elimination. It can
further be described as how the body handles a drug from site of
administration to the site of action and elimination.
Pharmacodynamics/mechanism of action: the study of how dru
act on the body.
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