PHARMODYNAMICS Flashcards
(68 cards)
PHYSIOLOGIC EFFECTS OF DRUGS ARE AFFECTED BY THE
Altered Blood Pressure
Altered Heart Rate
Altered Urinary Output
Altered Function of CNS and PNS
Changes in all other body system
Macromolecular component of the body tissue that receives the maximum effect of a drug
DRUG RECEPTOR
determines drug concentration to accomplish intended attraction between drug and receptor
AFFINITY
concentration of drug to accomplish its intended effect.
EFFICACY OF DRUGS
bind to receptor and produces therapeutic effect.
AGONIST
partial binding at a receptor and produce partial therapeutic effect.
PARTIAL AGONIST
joins receptor and prevents agonist from performing intended effects
ANTAGONIST
dosages of which intended effect is obtained and the amount that produces unwanted effect.
THERAPEUTIC INDEX
DRUG COMBINATION OR COMBINING TWO DRUGS MAY CAUSE:
✔ To become inactive
✔ To form a toxic compound
✔ To increase the effect of each drug given alone
(additive reaction)
To equal an effect greater than sum of their.
separated dose (Synergistic Reaction)
To either neutralize or decrease intended effect
common, unintended, and non-toxic reactions
SIDE EFFECT
more severe and life threatening reactions
ADVERSE
unwanted effect that is extension of therapeutic effect
TOXIC REACTIONS
unexpected or exacerbated effect
DRUG IDIOSYNCRASY
sign of drug dependence.
DRUG TOLERANCE
rapid development of tolerance to a drug
TACHYPHYLAXIS
results from an immune-mediated response by the body against the drug
ALLERGIC REACTION
The process required for a drug to reach the site of action is best described using
biopharmaceutic and pharmacokinetic principles
Think of it this way vacation, you Biopharmaceutics have and in order to enjoy your to get there pharmacokinetics first. are analogous to what you pack, which car you take (sports car or minivan), the gas you buy on the way, and the road you take to get there.
ANALOGY
It is the area of pharmacology that focuses on the method for achieving effective drug administration. Drugs are placed into vehicles by the manufacturing process
BIOPHARMACEUTICS
It is a substance into which a drug is compounded for initial delivery into the body.
DRUG VEHICLE
Solid, liquid, gas, or any combination of these is the combination of both the drug and the vehicle used to deliver the drug.
Solid dosage forms used for oral administration include tablets, capsules, and troches
DOSAGE FORM
generally consists of an active ingredient (drug), various fillers and disintegrator a dyes, flavoring agents, and an outside coating
tablet
TYPES OF TABLET
COMPRESSED TABLETS
SUGAR-COATED TABLETS
FILM-COATED TABLETS
ENTERIC-COATED TABLETS
MULTIPLE COMPRESSED TABLETS
BUCCAL OR SUBLINGUAL TABLETS
EFFERVESCENT TABLETS
Are compacted with no special coating, they are subject to chemical degradation from the environment
COMPRESSED TABLETS