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VTT244 Pharmacology
How drugs work
61
Veterinary Medicine
Not Applicable
08/15/2013

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Term
Pharmacokinetice
Definition
Study on how drugs move into through and out the body
Term
Pharmacodynamics
Definition
Study of how drugs produce their effects within the body
Term
Therapeutic range
Definition
Ideal range of drug concentration within the body
Term
3 componets of te therapectic admin of drugs
Definition
1 dose- amount given at one time
2 dosage interval- time between admin
3 route of admin- Parenteral(IM,IV,SQ,IP,IN,IO,ID,IC)
PO Topical
Term
4 Basic steps
Definition
1 Absorption
2 Distribution
3 Metabolism
4 Elimination/Excretion
Term
Absorption
Definition
Movement of drug from the site admin to systemic circulation
Term
Bioavailabitity
Definition
How much of the drug is actually absorbed
Term
Factors which may affect absorption
Definition
1) Ph
2) Drug form
3) GI motility
4) First-Pass effect
5) Pefusion
Term
Distribution
Definition
Drug from systemic circ to/into tissues.
Term
Natural barriers to distribution
Definition
-BBB
-prostate
-Eye
-Synovivm
Term
Elimination/Excretion
Definition
1-Liver->Bile->Feces
2-kindeys->urine
Term
What are the 2 types of neurons in the ANS
Definition
1) pre-ganglionic/synaptic
2) post-ganlionoc/synaptic
Term
what is the sympathetic system called
Definition
Adrenergic
Fight or flight
Term
Adrenergic drugs are
Definition
Anti-Cholinergic
Term
In the sympathetic system pre-ganglionic fiber are
Definition
Short
Term
In the sympathetic system post-ganglionic
Definition
long
Term
In the sympathetic system post-ganglionic
Definition
long
Term
Sympathetic system post-ganglionic neurotransmitters are
Definition
norepinephrine, eponephrine, and dopamine
Term
Sympathetic system receptors are
Definition
Alpha, Beta, Dopaminergic
Term
Parasympathetic system Pre and post ganglionic neurotransmitter is
Definition
Acetylcholine (ach)
Term
Parasympathetic system receptors are
Definition
Muscarinic
Term
Parasympathetic system is also called
Definition
Cholinergic
Rest and repose
Term
Cholinergic durgs are
Definition
Anti-adrenergic
Term
Parasympathetic system pre-gandlionic fibers are
Definition
long
Term
Parasympathetic system post-ganglionic fiber are
Definition
short
Term
All pre-ganglionic fibers release?
Definition
Acetycholine (ach)
Term
The Pre-ganglionic fibers release Ach in to what receptors
Definition
Nicotinic receptor
Term
What are the 2 types or ach receptors
Definition
Muscarinic and nicotinic
Term
What is a ganglion
Definition
A knot- like newtwork of nerve cell bodies outside the CNS
Term
Neurotransmitters ares
Definition
Chemicals by which neurons communicate
Term
Adrenergic neurotransmitters
Definition
norepinephrine, eponephrine, and dopamine
Term
Cholinergic neurotransmitter
Definition
Acetycholine (ach)
Term
Alpha receptors
Definition
Cause excitation or increased activity of their target organ.
Term
Alpha receptors are primarily activated by
Definition
Norepinephrine
Term
Beta receptor
Except.
Definition
causde relaxation or decreased activity of their target organ
-Heart muscle
Term
Beta is activated primarily by
Definition
epinephrine
Term
Nicotine receptor is stimulated by
Definition
low doses of nicotine
Term
Muscarinic receptor is stimulated by
Definition
muscarine and parasympathominetic drugs
Term
Dopaminergic receptor is
Definition
Vasodilation od vessels in kidneys, Heart, and GI tract
Term
Beta 1 receptors in
Definition
heart: increased rate, contractility, conduction velocity
Term
Beta 2 receptors are
Definition
-Arterioies/Veins: vasodilation
-Trachea/bronchioles: relaxation
Term
Atropine is a
Definition
Pre-anesthetic to decrease secretion and prevent bradycardia
Term
Atropine helps with what type of exam. And does what
Definition
ophtho. dilate pupils and decrease ciliary spasm
Term
Glycopyrrolate is/ But doesnt
Definition
Similar to atropine
Doesnt cross the CNS
Term
Glycoprrolate is used on what animal
Definition
Rabbits
Term
Pralidoxime AKA
Definition
2-pam
Term
Pralidoxime is/does
Definition
reactivates acetylchlionesterase to treat OP toxicity
Term
Propanthline Treats
Definition
diarrhea, uninary incomtinence
Term
Sympathomimetic drugs uses
Definition
-Stimulate the heart during cardiac arrest
-Correct hypotenson(vasoconstriction)
-Reverse bronchoconstriction during anaphylactic shock
-allergic reaction
-UTI
-treat glaucoma
Term
Epinephrine(adrenalin)
Definition
increses HR/metabolic rate, dilates the bronchioles and blood vessels,
Term
Noreepinephrine (noradrenalin)
Definition
Mostly and alpha- agonist with beta effects
-Vasopressor(Raises blood pressure)
Term
Xylazine
Definition
sedative and analgesic
Alpha 2 agonist
Term
reversal agent for Xylazine
Definition
Yohimbine
Term
Phenylpropanolamine (PPA)
Definition
Stimulates both alpha and bata receptors, increses the release of norepinephrine, can treat UTI
Term
Dobutamine
Definition
used for a short-term treatment of heart failure bu increasing contractility and rate
Term
Acepromazine
Definition
causes vasdoilation, decresases seizure threshold
Term
phenoxybenzamine
Definition
hypotensice agent(vasodilator)
Term
Terbutaline and alburterol
Definition
bata- agonists
Bronchodilation
Term
Dopamine at low doese
Definition
constricts arterioles in sites other than the brain and kidneys
Term
dopamine uses to treat
Definition
shock, CHF, and inceease renal perfustion
Term
Dopamine is
Definition
dopaminergic and beta 1 receptors
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