Introduction Flashcards
Action of drugs in the body is called?
Pharmacodynamics
Fate of drugs in the body is called?
Pharmacokinetics
Pharmacy
Science of preparation of drugs
Undersirable effect of drugs on biological processes
Toxicology
Therapeutics
Treatment of disease
The site of action of a drug is a macromolecular protein called? And located where?
Receptor, target tissue
Most drug effects are permanent. T/F
False
Most drug effects are ———- because the body has systems for ———-, ———-, ————….. This process is known as?
Temporary, metabolism, detoxification, elimination… Pharmacokinetics
List the parenteral ways of drug administration
Intravenous/intramuscular
Inhalation(lungs)
Lingual/sublingual
Nasal/otic/ophthalmic
Apical-slowly absorbed(Skin)
Vaginal- vagina
Rectal-rectum
Intrathecal-Spinalcord
Intracaevenous-injected in penis
Intraamniotic-injected in sac containing fetus
Drugs absorbed enterally must be absorbed from? Into where?
GIT, Portal circulation
Drugs absorbed via portal circulation must first pass through where?
Liver
What is the primary site for drug metabolism
Liver
Some drugs maybe metabolized before reaching———-
Systemic circulation/blood
First class metabolism increases bioavailability to more than 100%. T/F
False
How are drugs metabolized?
Mostly active to inactive
IA(prodrug) to Active metabolite
Active drug to “
Active drug to toxic metabolite
Only the active drug produce activity. T/F
True
Drugs absorbed from the skin, sublingual, lungs, muscle, inhalational, vaginal goes directly through?
Systemic circulation bypassing portal circulation
Drugs injected directly into the blood stream e.g intravenous injection is rarely available for distribution to tissues. T/F
False. It is 100% available
Alll forms of drug administration is 100% available for distribution to tissues. T/F
False!! Only drugs injected directly to the blood stream
Blood exists in how many forms in the blood stream?
Two forms
What are the two forms in which drugs exist?
1)Free form dissolved in plasma water
2)Reversibly bound to plasma proteins which account for a total of 95-98 of the total form
Free drug traverses——— to interact with ———— to produce effects
Cell membrane, receptors pharmacodynamically
A drug is a substance or product that is used or intended to be used to ———- and ———- the ———— system and ———— state for the benefit of the ————-
Modify, explore, physiological system, pathological state, recipient
Drug categories
Prescription drugs
OTC