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
What condition is Furosemide commonly used to treat?
management of congestive heart failure, pulmonary edema
What can Prazosin be used to treat?
treatment of urinary retention due to detrusor arelexia
Amlodipine is used to treat what condition?
feline hypertension
What drugs are commonly used to treat hormonal urinary incontinence?
diethylstilbestrol (DES), Estriol (Incurin)
What drug is used in kidney failure treatment to increase red blood cell production?
Epoetin Alpha
What are the side effects of Alpha-2 agonists?
bradycardia
What is the reversal agent for Xylazine?
Yohimbine
What drug is often combined with Diazepam to induce anesthesia?
Ketamine
What effects does epinephrine have on the body?
constriction of blood vessels in the skin, dilation of blood vessels in skeletal muscle, dilation of bronchioles
What drugs does Atipamezole reverse?
Medetomidine, Detomidine, Dexmedetomidine
What breed should Thiobarbiturates not be given to or should be used cautiously in?
sighthounds
Which drug is most likely to NOT be used in young stallions?
Acepromazine
What are the forms of Anticholinergic drugs?
Atropine, Glycopyrrolate, Propantheline, Pralidoxime (2-PAM)
What adrenergic agent is used to treat urinary incontinence?
Phenylpropanolamine
What are Dopamine and Dobutamine used to treat?
congestive heart failure
Are Dobutamine and Dopamine sympathomimetic or parasympathomimetic?
sympathomimetic
What are the side effects of Acepromazine?
hypotension, lowers seizure threshold in epileptic animals, penile priapism in young stallions
What are some forms of Benzodiazepine tranquilizers?
Diazepam (Valium), Midazolam, Alprazolam (Xanax)
What medication is used to diagnose Myasthenia gravis?
Edrophonium
What are Anticholinergic drugs used to treat?
drying of secretions and prevention of bradycardia before anesthesia, dilation of pupils, relief of ciliary spasms
What are the forms of Barbiturates?
Phenobarbital, Pentobarbital, Thiopental
What is a form of long acting Barbiturate?
Phenobarbital
What is a form of short acting Barbiturate?
Pentobarbital
What is a form of ultra-short acting Barbiturate?
Thiopental
What drug is used as a euthanasia agent?
Pentobarbital
What are the side effects of Ketamine?
ataxia, hyperresponsiveness, hallucinations
A Phenothiazine tranquilizer is contraindicated in animals with what condition?
epilepsy
What drugs are Alpha-2 Agonists?
Xylazine, Detomidine, Medetomidine, Dexmedetomidine, Romifidine
What are the effects of Anticholinergics?
block the action of acetylcholine at muscarinic receptors
Xylazine has what type of effects?
sedative, analgesic and muscle relaxing properties
What does Clomipramine treat?
anxiety
Phenobarbital is an ____________.
anticonvulsant
What drug helps to stimulate respirations?
Doxapram
What inhaled anesthetic is used in high-risk patients?
Sevoflurane
What drugs treats canine cognitive dysfunction?
Selegiline
What are some forms of Dissociatives?
Ketamine, Tiletamine
What are some forms of Opioid Agonists?
Morphine, Oxymorphone, Butorphanol Tartrate, Fentanyl, Hydrocodone, Apomorphine, Codeine, Buprenorphine
What are some forms of Opioid Antagonists?
Naloxone
What drug is used to help prevent and control seizures that can have the adverse side effect of liver toxicity?
Phenobarbital
What narcotic opioid can be given as a transdermal patch?
Fentanyl
Do inhaled anesthetic like Isoflurane have high or low biotransformation rates?
low biotransformation rate
Apnea is the main side of what anesthetic drug?
Propofol
What drugs are used to prevent and control seizures?
Diazepam (Valium), Pentobarbital, Phenobarbital, Bromide, Gabapentin, Levetiracetam (Keppra), Zonisamide
What drugs are inhaled anesthetics?
Isoflurane, Sevoflurane, Halothane, Methoxyflurane
Clomipramine (Clomicalm) is what type of antidepressant?
Tricyclic Antidepressants
What drugs fall under the serotonin reuptake inhibitors group?
Fluoxetine, Reconcile, Trazodone, Selegiline, Dexmedetomidine oromucosal gel, Gabapentin
What is Pralidoxime used in the treatment of?
treats organophosphate toxicity
What drug is used to dilate pupils and treat ciliary spasms?
Anticholinergic drugs
What anticonvulsant drug also causes appetite stimulation in cats?
Benzodiazepines
What properties does Butorphanol have?
antitussive properties
What is Dexmedetomidine oromucosal gel used for?
used for noise aversions
What is Guaifenesin used for?
skeletal muscle relaxant used primarily in equine medicine to induce anesthesia, extend anesthesia of another injectable or enhance muscle relaxation of anesthetized patients
How does Trazodone work?
causes serotonin to remain in brainstem decreasing anxiety
What medication is given in emergency situations to stop seizures?
Diazepam (Valium)
What medication is converted to Phenobarbital by the liver which accounts for it’s anticonvulsant activity?
Primidone
What are Zonisamide and Levetiracetam (Keppra) used for the treatment of?
seizures
Why would Atropine be used cautiously in horses?
colic
Which medication do we worry about binding to plastic inside a syringe?
Diazepam
What are the clinical uses for Oxytocin?
augment the force of uterine contractions during delivery (dystocia), aid in delivery of placenta, induce milk letdown
What are the uses for Prostaglandins?
promote uterine contractions so can induce parturition or abortion
What are the uses for corticosteroids?
mimic natural rise in corticosteroids by the fetus as the time for delivery draws near and thus could induce parturition
What are the uses for Melatonin?
Alopecia in dogs, improve breeding/ovulation in sheep and goats
What are the uses for Metergoline?
treats false pregnancy in dogs
What are the uses for Neutersol?
can be injected directly into testicles of puppies to cause permanent sterility; does NOT eliminate testosterone
What is Feliway?
feline facial hormone; stopping or preventing urinary markings by cats, comforts the cat in unknown stressful environments
What is D.A.P.?
dog appeasing pheromone; calms dogs during stressing situations
Hypothyroidism occurs in _______.
dogs
Hyperthyroidism occurs in ______.
cats
What drug is used to treat hypothyroidism?
Levothyroxine Sodium (T4)
What is Liothyronine Sodium (T3)?
treatment of hypothyroidism if not responsive to Levothyroxine
What are thyroid-stimulating hormones?
used as an aid to diagnose hypothyroidism
What drug is used to treat hyperthyroidism?
Methimazole
What is a form of Methimazole?
Felimazole
What is Radioactive Iodine (I-131)?
treats hyperthyroidism
How is Radioactive Iodine used?
given IV and absorbed and destroys over-productive thyroid tissue
What are the uses for Mitotane?
used to treat PDH
What is a form of Mitotane?
Lysodren
What does Trilostane inhibit?
inhibits adrenal steroid synthesis
What are the uses for Trilostane?
used to treat Cushing’s (Hyperadrenocorticism)
What is a form of Trilostane?
Vetoryl
What is Addison’s (hypoadrenocorticism)?
low/no cortisol production (steroid production)
What are some treatments for Addison’s?
Prednisone, Deoxycorticosterone pivalate (DOCP), Fludrocortisone
What type of diabetes is insulin dependent?
Type I Diabetes
What type of diabetes is non-insulin dependent?
Type II Diabetes
What type of diabetes is common in dogs?
Type I
What type of diabetes is common is cats?
Type II
What are some clinical signs of diabetes?
PU/PD, weight loss
What are some forms of regular insulin?
Humulin R, Novolin R
What types of insulins are short acting?
regular insulin
What are short acting insulins used for?
emergency treatment of DKA
What are intermediate acting insulins used for?
long-term management of diabetes
What are some forms of intermediate acting insulins?
Humulin-N, Novolin-N, Prozinc, Vetsulin
What types of insulin are long acting?
Glargine (cats), Detemir
What are long acting insulins used for?
long term treatment of diabetes
What are some forms of Glargine and Detemir?
Lantus and Levemir
What are the clinical uses for Gondorelin (GnRH)?
treats cystic ovaries in dairy cattle
What are the clinical uses for Chorionic Gonadotropin (hCG)?
cystic ovaries in dairy cattle, infertility caused by low testosterone
What are the clinical uses for Gonadotropins?
superovulation, out of season breeding
What is Estrogen used for in cattle?
persistent corpus luteum, expel purulent material from uterus, promote weight gain
What is Estrogen used for in dogs?
control urinary incontinence
What is Estrogen used for in horses?
induction of estrus in non-breeding season
What are some forms of Estrogen?
Estradiol (Incurin), Diethylstilbestrol (DES)
What are some side effects of Estrogen?
severe anemia
Is Estrogen used in males or females?
females
Are Androgens mainly used in males or females?
males
What are some forms of Androgens?
Methyltestosterone, Testosterone Cypionate, Testosterone Enanthate, Testosterone Propionate, Milberone
What are some uses for Androgens?
urinary incontinence in male dogs
Which Androgen can be used in femlaes?
Milberone
What are some uses for Milberone?
prevention of estrus in dogs, treatment of false pregnancy
What are some side effects of Milberone?
clitoral hypertrophy, vulvovaginitis, increased body odor
What are some clinical uses for Progestins in dogs?
control estrus, false pregnancies, prevent vaginal hyperplasia, treat severe galactorrhea, control unacceptable male behavior
What are some clinical uses for Progestin in cats?
dermatologic and behavioral problems and suppression of estrus
What are some side effects of Progestins?
hyperglycemia
What drugs fall under the Progestin group?
Megestrol Acetate, Medroxyprogesterone Acetate (MPA), Altrenogest, Norgestomet, Melengestrol Acetate
What are some uses for Medroxyprogesterone Acetate (MPA)?
treatment of behavioral problems, treatment of certain dermatologic conditions
What are some forms of Medroxyprogesterone Acetate (MPA)?
Depo-Provera
What is Altrenogest?
oral progestin for horses and swine to suppress estrus in mares and gilts
What is Norgestomet?
used to synchronize estrus in cattle (synchro-mate B)
What are some uses for Dinoprost Tromethamine?
abortion producing agent in dogs/cats
What are some forms of Dinoprost Tromethamine?
Lutalyse
What are some side effects of Dinoprost Tromethamine?
sweating, abdominal pain, dyspnea and panting, tachycardia
What are some uses for Cloprostenol Sodium in cattle?
treatment of mummified fetuses, termination of pregnancy, estrus synchronization
What is Bovine Somatotropin?
growth hormone
What does Bovine Somatotropin do?
increases growth rate in bovine, increases milk production