Pharmacology Flashcards
What is a drug regimen?
the plan for administering a drug (i.e. - 20# Clavamox (62.5mg) 1 tab PO BID x 10 days)
What does a drug regimen include?
route of administration, total amount given (dose), frequency of administration, duration of use
What is the AVMA’s preferred way to disposed of unwanted drugs?
incineration
Where does drug excretion occur?
liver and kidney (kidney most common)
What is Pharmacokinetics?
the study of the bodily absorption, distribution, metabolism and excretion of drugs
What is a pharmacokinetic interaction?
absorption, distribution, metabolism or excretion changed by another drug
What is a pharmacodynamic interaction?
the action or effect of one drug is altered by another
What is a pharmaceutic interaction?
physical or chemical reaction between drugs from mixing of drugs in syringe
What is Therapeutic Index (LD50/ED50)?
relationship between drugs ability to achieve desired effect and tendency to cause toxic effects (expressed as a ratio), quantitates margin of safety
What is a Class I controlled drug?
high potential for abuse/no medical application
What is the Green Book?
list of all animal drug products that have been approved by the FDA for safety and effectiveness
What is the process of making a new drugs?
preliminary trials, preclinical trials, clinical trials, submission of a new animal drug, final review by FDA, product monitoring
What is an agonist?
high tendency of a drug to bind to a receptor
What is an antagonist?
a drug that blocks another drug from combining with a receptor
What is extra-label use?
use of a drug in a way not specified on the label
Where does drug metabolism/biotransformation occur?
in the liver
What is a trade name?
proprietary name of a drug
What is the legal aspect of pharmacology?
veterinarian-client-patient relationship
What is a suspension?
separates after sitting, shake well
What is a bolus?
large pill used in large animals
What is an elixir?
hydroalcoholic liquid with sweeteners, flavoring, and medication
What is a liniment?
preparations for use on skin as a counterirritant or to relieve pain
What are the six rights of drug administration?
right patient, right drug, right dose, right route, right time/frequency, right documentation
Which route of injection has the slowest onset of action (IM, IV, SQ)?
SQ
What antagonist drug reverses opioid toxicity?
Naloxone
Which drugs are reversal agents?
Yohimbine, Naloxone, Atipamezole
What are the 4 categories of bronchodilators?
cholinergic blockers, antihistamines, beta-2 adrenergic agonist, methylxanthines
What are some examples of beta-2 adrenergic agonists?
epinephrine, albuterol, clenbuterol (both commonly used), and terbutaline (common)
What are some forms of methylxanthines?
theophylline and aminophylline
What are some forms of antihistamines?
diphenhydramine (benadryl), hydroxyzine, cyprohepatadine, cetirizine (xyrtec)
What drug is given to neonates to stimulate breathing?
Doxapram
Which drugs fall under the antitussive group?
Butorphanol, Hydrocodone, Codeine, Dextromethorphan, Temaril-P
What are the major side effect of corticosteroids?
PU/PD, panting, polyphagia, immunosuppression
What is the most common drug group used to treat feline asthma?
corticosteroids
What are some forms of corticosteroids?
prednisolone, prednisone, beclomethasone, fluticasone propionate (FLOVENT), triamcinolone
What drug is an antitussive and steroid?
Temaril-P
What does epinephrine treat in high doses?
cardiac arrest
What does epinephrine treat in low doses?
anaphylactic shock
What diseases do corticosteroids primarily treat?
equine heaves, feline asthma, allergic pneumonia
Why are inhaled steroids safer?
provides strong anti-inflammatory with fewer systemic side effects
Are most antitussive peripheral or central acting?
central
What drug group chemically alters mucous?
Mucolytics
What drug groups is used for productive coughs?
Expectorants
What skeletal drug is use as a muscle relaxer in horses?
Guaifenesin
What drug group is used to treat Heaves (horses)?
corticosteroids
What properties does Dextromethorphan not have that differentiates it from codeine?
no analgesia (pain control) or addictive properties so it is not controlled
What is preload stroke volume?
amount of blood that fills the ventricle during diastole
What is afterload stroke volume?
resistance that must be overcome to pump blood to body
What is the function of positive inotropes?
improves the strength of contraction even in face of disease
What are some forms of ACE inhibitors?
Enalapril and Benazepril
What drugs fall under the positive inotropes group?
cardiac glycosides, catecholamines, and inotropic mixed dilators
What are some forms of Beta Blockers?
Propanolol, Atenolol
What are some forms of vasodilator drugs?
hydralazine, nitroglycerin ointment, prazosin, ACE inhibitors
What are some forms of catecholamines?
epinephrine, isoproterenol, dopamine, dobutamine
(C.E.I.D.D - cats eat iced dunkin donuts)
What are some forms of cardiac glycosides?
Digoxin
Which two drugs should never be combined when treating arrhythmias?
lidocaine and epinephrine
What effects do beta blockers have? How do they affect the heart?
decrease heart rate and blood pressure
What is Pimobendan used to treat?
atrioventricular valve insufficiency and dilated cardiomyopathy
What effects do ACE inhibitors have? How do they affect preload and afterload?
decrease blood pressure, reduce preload and afterload
What are some side effects of Furosemide?
hypokalemia (low blood potassium)
What drug is commonly used to treat hypertrophic cardiomyopathy?
Propranolol, Diltiazem
What does Nitroglycerin do? How is it applied?
reduces preload, improves cardiac output, reduce associated pulmonary edema
applied topically
What does Lidocaine do?
control VPC’s, treats ventricular tachycardia
What drug treats tachycardia in hyperthyroidism and is a class II antiarrhythmic?
Propranolol
What drug most commonly has drug levels monitored (cardiac drugs)?
Digoxin
What drugs must be applied using gloves?
Nitroglycerin ointment
What does Epinephrine treat?
anaphylactic shock
Furosemide is what kind of diuretic?
Loop diuretic
Methazolamide is in what group of diuretics?
Carbonic Anhydrase Inhibitors
Mannitol is what kind of diuretic?
Osmotic Diuretic
What diuretic spares potassium?
Spironolactone
Which drug is a urinary acidifier and is used to manage urinary stones?
Ammonium chloride
Diltiazem is what kind of drug?
Calcium Channel Blockers
What kind of diuretic works by inhibiting tubular reabsorption of sodium?
Furosemide
Which drug is a urinary acidifier?
Potassium citrate
What drug is commonly used for the treat of hypertrophic cardiomyopathy in cats?
Diltiazem
What drugs works by preventing conversion of Angiotensin I to Angiotensin II?
ACE inhibitors
Hypokalemia is an adverse effect of what drug?
Furosemide
What drug increases the tone of the urethral sphincter?
Phenylpropanolamine (PPA)
What can Mannitol be used to treat?
reduce intraocular pressure, reduce intracranial pressure, oliguric (low urine production) renal failure
Allopurinol can be used to manage what condition, common in Dalmatians?
urate uroliths
Where does Spironolactone work?
works in the late distal tubule and collecting duct