Pharmacology – The science of drugs is known as ” Pharmacology Pharmacon ( drug ) + logos ( science ) = Pharmacology
Pharmcodynamics – The study of effects of drugs on the body is known as ‘ Pharmacodynamics ‘ .
Pharmacokinetics -The study of bodies reaction towards the drug is known as “ Pharmacokinetics ‘ .
Drug – A substance that is used for diagnosis , treatment and prevention of diseases is known as a ‘ Drug ‘
Father of Pharmacology – Oswald Schmiedeberg
Essential drugs – As per WHO Essential drugs are ‘those that satisfv the priority health care needs of the population’.
Bio-availability – The rate and extent of absorption of a drug from a given dosage. It is determined by drugs concentration – time curve in blood or by its excretion in the urine.
Synergism – The action of one drug is facilitated o increased by the other drug; this relationship is known as ‘Synergism’.
Antagonism – The action of one drug is decreased or abolished by the other drug; this relationship is known as ‘Antagonism’.
Drug dosage – The appropriate amount of a drug needed to produce required degree of response is known as its dosage.
Adverse drug effect – An undesirable or unintended consequence of a drug administration is known as ‘Adverse drug effect’.
Pharmacovigilence- The science and activities related to the recognition, evaluation, understanding andprevention of adverse effects or any complications related to drugs is known as Pharmacovigilence’.
A drug has three categories of names –
- Chemical name
- Non-proprietary name
- Proprietary name
Routes of Drug Administration
- Local routes
- Systemic routes
b. Sub-lingual/ Buccal
i. Subcutaneous (s.c.)
ii. Intra-muscular (i.m.)
iii. Intra-venous (i.v.)
Routes of Drug Excretion
- Feces/ stool
- Exhaled air