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174 Cards in this Set

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55 year old female presents complaining of being cold all the time, weight gain and brittle nails. Her TSH, FT4 and FT3 levels were taken showing elevated TSH, and decreased FT4 and FT3. What drug are you most likely to prescribe the pt?
Levothyroxine sodium T4

- metabolized by cytochrome p450 system which is affected by drugs that induce the cyp450 system like phenytoin, rifampin and phenobarbitol.
55 year old female presents complaining of being cold all the time, weight gain and brittle nails. Her TSH, FT4 and FT3 levels were taken showing elevated TSH, and decreased FT4 and FT3. What drug are you most likely to prescribe the pt?
Levothyroxine sodium T4

- metabolized by cytochrome p450 system which is affected by drugs that induce the cyp450 system like phenytoin, rifampin and phenobarbitol.
75 year old female presents complaining of being cold all the time, weight gain and brittle nails. Her TSH, FT4 and FT3 levels were taken showing elevated TSH, and decreased FT4 and FT3. What drug are you most likely to prescribe the pt and how would you prescribe it?
levothyroxine sodium T4

initiate T4 cautiously and incr doses in small increments
75 year old female presents complaining of being cold all the time, weight gain and brittle nails. Her TSH, FT4 and FT3 levels were taken showing elevated TSH, and decreased FT4 and FT3. What drug are you most likely to prescribe the pt and how would you prescribe it?
levothyroxine sodium T4

initiate T4 cautiously and incr doses in small increments
52 yo F is a new pt of yours. She tells you that she was diagnosed w/ hypothyroidism a long time ago, but couldn't afford medication for it until recently. What drug are you most likely to prescribe the pt and how would you prescribe it?
levothyroxine sodium T4

1/2 life is longer d/t dec clearance and they are very sensitive to CV effects. Recommended dose 25 microg/day and inc by same amount over 4-6 weeks as tolerated
52 yo F is a new pt of yours. She tells you that she was diagnosed w/ hypothyroidism a long time ago, but couldn't afford medication for it until recently. What drug are you most likely to prescribe the pt and how would you prescribe it?
levothyroxine sodium T4

1/2 life is longer d/t dec clearance and they are very sensitive to CV effects. Recommended dose 25 microg/day and inc by same amount over 4-6 weeks as tolerated
55 year old female presents complaining of being cold all the time, weight gain and brittle nails. She has a history of an MI when she was 50. Her TSH, FT4 and FT3 levels were taken showing elevated TSH, and decreased FT4 and FT3. What drug are you most likely to prescribe the pt?
levothyroxine sodium T4

replace thyroid deficit slowly, cautiously & suboptimally
12.5-25 microg/day and inc by same amount over 2-4 weeks as tolerated.
55 year old female presents complaining of being cold all the time, weight gain and brittle nails. She has a history of an MI when she was 50. Her TSH, FT4 and FT3 levels were taken showing elevated TSH, and decreased FT4 and FT3. What drug are you most likely to prescribe the pt?
levothyroxine sodium T4

replace thyroid deficit slowly, cautiously & suboptimally
12.5-25 microg/day and inc by same amount over 2-4 weeks as tolerated.
48 yo F comes to your office complaining of weight gain and brittle hair. You also notice that although its june in vegas, the pt is wearing sweatpants and a hoodie. You give the pt levothyroxine. 6 weeks later she comes back into your office for a check up and nothing has changed. What drug would now be indicated and what's the problem? what are the risks?
Liothyronin sodium T3

the pt has an inability to convert T4 to T3

increased incidence of cardiac SEs
48 yo F comes to your office complaining of weight gain and brittle hair. You also notice that although its june in vegas, the pt is wearing sweatpants and a hoodie. You give the pt levothyroxine. 6 weeks later she comes back into your office for a check up and nothing has changed. What drug would now be indicated and what's the problem? what are the risks?
Liothyronin sodium T3

the pt has an inability to convert T4 to T3

increased incidence of cardiac SEs
34 yoF presents to your ER complaining of tachycardia, palpitations, and dizziness. She is diaphoretic and has a fever of 101.4. ECG comes back clear, free Thyroid hormones come back highly elevated. what is the protocal?
1st stabilize pt (fluid, cooling, acetaminophen)
manage sxs:
propranolol- used for sympatomatic relief till thyrotoxicosis can be controlled. (Blocks B-adrenergic receptors, inhibits 5' deiodinase & conversion of T4 --> T3 in peripheral tissue)

anti-thyroid drugs- preferably PTU d/t the peripheral conversion of T3->T4
corticosteroids
abs
46 yoF presents to your office complaining of always being hot, recent weight loss and palpitations. You do a thyroid test and it shows elevated free thyroid hormones. WHat drug do you prescribe her?
Metimazole (thioamides)
bc less freq dosing and less risk of liver complications

MOA: reduce synthesis of thyroid hormones (inhibit TPO--> inhibiting oxidation, condensation) no effect on release of preformed thyroid hormone.
23 yoF G1P0 presents to your office complaining of always being hot, recent weight loss and palpitations. You do a thyroid test and it shows elevated free thyroid hormones. WHat drug do you prescribe her?
Propylthiouracil (PTU)

d/t less complications

extra bonus: blocks conversion of T4-T3 in peripheral tissue by inhibiting 5'deiodinase
35 yoF presents with signs of hyperthyroidism. You prescribe her a drug that will prepare her thyroid for surgery. 2 months later, the pt presents to your office complaining of a fever, rash, some edema. What drug did you prescribe her?
thionamide

HSN rxns occur w/n 3months of tx --> rash, joint pain, fever, edema. pts are usually just allergic to one of them, not both.
which drug's MOA is the wolff-chaikoff effect?
potassium iodide

wolff-chaikoff effect: transient ↓ in T3/T4 levels d/t excess ingestion of iodide, which inhibits iodide pump activity.
45 yoF with hyperthyroidism that isn't responding to thionamides comes to your office. You decide that you need to prepare the thyroid for surgery. you prescribe a drug to your pt and within a months time she returns to your office complaininig of ulcers on the gum line of her mouth, a sore throat and a metallic taste in her mouth all the time. what drug did you prescribe her?
Potassium Iodide

AE: sore throat, mucus membrane ulcers, rashes, metallic taste in the mouth (like metronidazole)
53 yoF is diagnosed w/ subacute thyroiditis but is intolerant to the thionamides. what can you give her instead?
Iodinated contrast agents (lopanoic acid & lopadate)

MOA: prevent release of T4 & T3 and inhibit peripheral conversion of T4--> T3, T3 levels reduced by 60% in 24 hrs.
what is the best tx that will prevent the progression of exophthalmos?
I131 radioiodine

MOA: radioisotope emits B particles causing destruction of thyroid follicles.
24 yoF G1P0 presents with graves disease that is intolerant to thionamides and is getting worse. What can you do next?
Surgery.

I131 is contraindicated in preggers and breast feeding Mom's
24 yoF with a BP of 145/90 wants to get on birth control. You take a look at her records and notice that her bp has been fairly stable while on captopril. What drug do you give her?
Oral contraceptives.

Stable HTN is not a risk factor for OCPs, uncontrolled BP and ESRD are risk factors for OCPS.
45 yoF with a 60 pack year wants to get on birth control. What do you prescribe her?
mini-pill

oral contraceptives are contraindicated in heavy smokers over the age of 35 d/t incr coagulability, venous thromboembolism, and DVT formation.
30 yoF with epilepsy comes into your office stating that she got pregnant when on the pill. what might have caused that?
antiepileptic drugs like carbamezepine and phenytoin are cyp450 induces and increase metabolism of drugs that use the cyp450 system like oral contraceptives. this degraded the pill and made it less effective.
28 yoF comes to your ER complaining of abdominal pain, chest pain, headache, eye problems and severe leg pain. There was no trauma, no significant family history, no recent travel and lab work came up normal except for a slightly elevated T4. The pt was recently prescribe a form of birth control that may have sometime to do with, what is it?
combined- oral contraceptive pills

seirous SE: ACHES (abdominal pain, chest pain, HA, eye problems, and severe leg pain)
22 yoF comes to office complaining of breakthrough bleeding early in her cycle while on the pill. what might be the reason?
deficiency of estrogen in the combined pill
22 yoF comes to office complaining of breakthrough bleeding late in her cycle while on the pill. what might be the reason?
deficiency of progestin in the pill
35 yoF is a traveling saleperson from the UK. She is brought into the ER after experiencing chest pain and difficulty breathing. You diagnosed her with a DVT that became a pulmonary embolism. What form of birth control has an increased risk of DVT?
transdermal patches
37 yoF comes to your office complaining that the birth control that she is currently on is giving her headaches, has spiked up her BP, and is causing age spots. You consider suggestive an alternative. what are the contraindications to the alternative drug for birth control?
alternative drug: mini-pill
CI: personal hx of breast CA, undiagnosed vaginal bleeding ad hepatic dz.
25 yoF presents to your office asking for a drug that provides infertility for months after stopping the drug. what is this drug?
Depot medroxyprogesterone acetate (DMPA)
26 yoF just had a baby girl and does not want to get pregnant for another 3 years, but she also wants to make sure that when she does decide to stop the medicine, that her fertility returns rapidly. Which form of birth control should she be on?
progestin implants

subdermal capsules
*cheaper, easy compliance
57 yoF presents to your office complaining of hot flashes, hair in strange places and vaginal dryness. She underwent a hysterectomy after her last child 25 years ago. What drug do you prescribe her?
Conjugated equine estrogens (CEE) to tx menopause.

also recommended for women w/ intact uterus (must incl progestin to dec risk of endometrial CA)
25yoF presents to your office complaining of disabling pain w/ menstruation. The pain goes after after the cycle is over. She says that the pain interferes with her daily life. what drug can be given that inhibits the GnRH release?
Danazol: 6-12 months

inhibits GnRH release, mid cycle LH & FSH surge, enzymes in the ovary to prevent E production, inhibits growth of endometrial tissue.

pt has endometriosis
what 5 hormonal therapies can you give to tx endometriosis? non hormonal therapies?
OCP, progestins, danazol, GnRH, aromatase inhibitors

non: analgesic and surgery
65 yoM is in your ICU bc of renal dysfunction. While there, he developes hypercalcemia. How do you tx him?
Calcitonin
60 yoF w/ CHF presents to your ER w/ elevated calcium levels, how do you tx her?
calcitonin
hypercalcemia + parathyroid Ca. tx?
cinacalcet
DOC for malignancy associated hypercalcemia with a normal therapeutic index
Pamidronate (give w/ furosimide)
this drug mimics ionized ca on Parathyroid gland and incr sensitivity to calcium which causes a decrease in PTH secretion
cincalcelet
a pt w/ GERD presents to you office with hypercalcemia. What can you NOT give the pt?
bisphosphanates

inhibit osteoclastic proton pump
inhibit osteoclastic activity
decr osteoclast formation
incr osteoclast apoptosis
what drug can you give a pt w/ o any underlying factors for a long term tx of hypercalcemia? what should you tell them before taking them?
bisphosphanates

this can cause esophageal an gastric irritation and bleeding, so take with a glass of water and stay fully upright for 30 minutes after taking it
which drug decreases serum ca 2+, inhibits bone turnover, causes an increase in renal excretion of calcium and antagonizes PTH effects? who is this drug CI in?
calcitonin

salmon calcitonin is contraindicated in any one with a hx of allergies.
you are doing rounds in the ICU on your 65 yoM with severe pancreatic cancer. you notice that he has hypercalcemia, what drug do you prescribe this pt? what are the worries about this drug?
plicamycin

cytotoxic ab that inhibits Vit D and effect of PTH on osteoclast.
this is highly toxic and has a very low therapeutic index. so give one low dose.
you are doing rounds on your 25 yoF G1P0 pt with severe breast cancer, what drug is completely contraindicated with this pt?
plicamycin

CI: electrolyte imbalance, preggers, BMS, bleeding disorders
40 yoF presents to the ER with hypocalcemia. She has no other medical issues. what drug do you give her?
calcium gluconate (parenteral)- DOC

required: acidic environment for absorption
60 yoM with a hx of PUD presents with hypocalcemia. What drug do you prescribe him?
calcium citrate

no acidic environment needed

he's probably on a PPI which makes the environment alkalytic rendering other calcium treatments useless.
65 yoF with diabetic nephropathy presents with hypocalcemia. What drug do you give her?
calcitriol

inc absorption of calcium in GI and renal calcium reabsorption
incr plasma ca
dec PTH levels/ bone resorption
55 yoM who is currently being tx for his A. Fib has glomeruloproliferative glomerulonephritis as well as hypocalcemia. what can you NOT prescribe him?
Calcitriol

A fib is tx with Digoxin and digoxin is contraindicated in calcitriol txs.
what is the DOC for hyperparathyroidism?hypoparathyroidism? hypophosphatemia?
doxercalciferol: inc absorption of calcium in GI; dec PTH
hypo: calcitriol
PO4: ergocalciferol: inc plasma ca levels (inc intestinal reabs). v slow activation
47 yoF comes into your office for a regular check up and you notice that her height has decreased considerably over the years. On the T score, she rated a -2.7. What is your first line drug of choice?
Bisphosphanates
62 yoF with lupus has her dexa scan done and it shows osteoporosis, what is the DOC?
alendronate -- chronic GC users.

lupus- prenidsolone
your 67 yoF pt with osteoporosis comes into your office after being prescribed 2 years ago alendronate. The dexa scan shows no improvement, what drug do you give her? what are the concerns surrounding this one?
teriparatide: pulsatile doses infrequently of PTH= bone formation, incr osteoblastic activity, new bone fomration & bone mineral density.

can only use it up to 21 months--> beyond 21 --> inc risk of osteosarcoma
what two vit D drugs can only be described to pts w/ normal kidneys?
ergocalciferol and doxercalciferol
what is the DOC for post-menopausal women with osteoporosis?
raloxifen
what can you give to someone who is experiencing osteolysis associated with a tumor?
bisphosphanates
tx for osteomalacia and rickets?
vit D- ergocalciferol
tx for pagets
calcitonin and bisphosphanates
how does raloxifen work?
acts like an agonist in bone and decreases Rank L proliferation & expression
35 yoM presents to your office with a rounded face, HTN, centripetal fat deposition and striae. you suspect cushings. How would you diagnose cushings?
w/ dexamethasone
27 yoF G1P0 comes into your office with a rounded face and HTN. You notice that she is developing a centripetal fat distribution that is abnormal even for a pregnant woman. what drug should you put her on and how does it work?
Metyrapone

decrease 11b hydroxylase which will decrease HTN and allow androgen production
with what drug do you tx ectopic acth syndrome?
metyrapone
with what drug do you tx ectopic acth tumors?
aminoglutethimide
you have a pt that has cushings d/t to his adrenal cancer, what can you give him? how does it work?
aminoglutethimide

inhibits conversion of cholesterol to pregnenolone
with what drug do you tx adrenal hyperplasia?
aminoglutethimide
how do you tx cushing's syndrome and hyperaldosteronism? how does this drug work? what is its famous SE that it shares w/ ketoconazole?
spironolactone

antagonist against the mineralocorticoid receptor and dec resorption of sodium and secretion of K.

se:gynecomastia
how do you tx cushing's disease?
ketoconazole

inhibits all of the adrenal and gonadal steroid horone synthesis
35 yoF presents with a darkened hue to their skin, hypotension and hypoglycemia. How would you confirm you hunch?
cosyntropin
how do you tx addison's dz?
hydrocortisone and fludrocortisone
35 yoF presents with a darkened hue to their skinand hypoglycemia. You do a confirmatory test and it comes back showing a decreased cortisol w a decreased/ normal ACTH. what is the cause? what do you expect the BP to be?
cause: exogenous CS administration (sudden w/ drawal after prolonged use)- atrophy of ant pit & hypothalamus

BP- normal d/t zona glomerulosa still intact
32 yoM during rounds complains of nausea and abdominal pain. His mucus membranes are dry and his bp is 80/50. you learn that he was hospitalized d/ t an acute attack of crohn's disease. What is happening? how do you tx it?
acute adrenal insufficiency
d/t abrupt w/drawl of GC. He was being tx for an exacerbation of crohn's disease with either prendisone or prednisonolone.

tx: hydrocortisone
iv isotonic NaCl
appropriate thx for precipitating cause
what two drugs do you use to suppress release of CRH and ACTH to decrease production of androgens?
dexamthasone and hydrocortisone
what drugs can you give all congenital adrenal hyperplasia pts? what drug can you give to replace the 21 hydroxylase deficiency?
all: hydrocortisone and dexamethasone -> all need to increase cortisol
21: fludrocortisone: Mineralocorticoid activity
which drugs can be used to prevent aromatization of androgens to estrogens?
aromatase inhibitos
what does flutamide do?
nonsteroidal competitive inhibitor of androgens at the testosterone receptor.
Name the drug:
Growth hormone agonist that is a recombinant GH
somatropin
Name the drug:
GH + add'l methionine group at amino terminus
somatrem
Name the drug:
GHRH agonist
sermorelin
Name the drug:
Recombinant IGF-1
mecasermin
Name the drug:
Binds SSTR2 and 5, used to tx acromegaly and TSH secreting adenomas
somatostatin agonists:
ocreotide
Name the drug:
produces internalization of the receptor w/o activating it
Pegvisomant (somatotstatin agonist)
Name the drug:
decreases direct & indirect activity d/t GH or IGF-1 receptor activation. Used to tx: acromegaly, CI in elevated liver transaminases
pegvisomant (somatostatin agonist)
Name the drug:
Gi coupled receptors
dopamine receptor agonists
Name the drug:
agonist of D2 receptor and antagonists of D1 receptors, albumin bound
bromocriptine
Name the drug:
lower tendency to cause nausea, potent D2 agonist w/ greater selectivity.
cabergoline
Name the drug:
used for chemical castration
GnRH agonists-- nonpulsatile admin w/ flare of FSH and LH for 7-10 days and then subsequent admin will inhibit FSH and LH release.
Name the drug:
CI in pregnancy and breast feeding
GnRH agonist
Name the drug:
tx for male infertility, identical in sequence to endogenous GnRH
gonadorelin
Name the drug:
increased 1/2 life, used for prostate caner, endometriosis, fibroids and hirsuitism
Gosrelin
Name the drug:
200x more potent used for endometriosis and central precocious puberty
nafarelin
what drug category is great for txing infertility and doing chemical castration?
GnRH agonists: gonadorelin, gosrelin, nafarelin
what drug category is used to prevent LH surge during ovarian hyperstimulation?
GnRH antagonists: Ganirelix, cetrorelix
Name the drug:
competitive antagonists as GnRH receptor?
Ganirelix and cetrorelix
what is ovarian hyperstimulation syndrome? what can cause it?
ovarian enlargment + ascites + hypovolemia + hemoperitoneum

caused by GnRH antagonists, LH agonists, FSH agonists, and hCG agonists
what drugs are reserved for women failing other tx for ovulation?
LH, FSH, and hCG
Name the drug:
only approved use w/ follitropon alpha
lutropin (LH agonist)

use in infertile women d/t profound LH deficiency to cause follicular development
Name the drug:
extract of urine from post menopausal women
urofollitropin
Name the drug:
sim to urofollitropin but more expensive
follitropin alpha and beta
which drugs are Gq receptors? (hypothalamus and pit hormones lecture)
oxytocin and vasopressin agonists (vasopressin and desmopressin)
Name the drug:
aids in milk letdown and contraction
oxytocin
9 yoM continues wetting his bed at night. Mom brings him to your office to see if there is something you can do about it. what drug do you prescribe?
vasopressin

bc it activates on both V1 receptor (which is for the vasculature) and V2 (which is for collecting tubules). V2 also regulates release of coag factor VIII and vWF.
You wouldn't give him DDAVP bc that focuses more on V2 receptor.
6 yoM with a known bleeding disorder comes to your office with a bleed that won't stop. What can you give him?
DDAVP- desmopressin-- long acting synthetic analog whose main action is on V2 which regulates the release of coag factor VIII and vWF.
what do you give someone to tx hyponatremia? (besides saline)
conivaptan: nonpeptide antagonist at V1 and 2.
Name the drug:
extracts from urine of a pregnant women
Propasi, pregnyl, otehrs

recomb form of hCG = choriogonadotropin alfa
which form of insulin has the fastest rate of injection? why?
rapid acting: lispro and aspart

the injection is full of monomers which enters circulation and does not slow down absorption
what is NPH?
it is insulin + protamine, after injection, the subq proteases degrade protamine releasing insulin. It is an intermediate insulin.
what form of insulin is the best for post prandial hyperglycemia?
regular or short acting insulin


- full of heptamers
how do the insulin drugs work?
by binding to the insulin receptor (tyrosine kinase) and causing incr in glucose storage as glucogen in the liver, conversion of aa to proteins in the muscle and ffa to fat in the adipose tissue.
also incr K+ uptake in muscles.
which insulin drug is peakless?
Glargine (long acting)
what are the two categories of insulin secretagogues?
Sulfonylureas and meglitarides
SUs: glyburide, glipizide, glimepiride
Meg: repaglinide
what is MOA of sulfonylureas?
Close K+ channel by binding the SUR 1 subunit on the K+ chennel which will cause the cell to depolarize triggering insulin release via Ca influx.
which drug in CI: in type 1 DM?
sulfonylureas

also CI: hepatic/ renal insufficiency and preggers
T/F

Adding 2 SUs to a regiment for a particularly challenging DM type 2 pt is acceptable.
FALSE


NEVER COMBINE 2 INSULINE SECRETAGOGUES----- HYPOGLYCEMIA.
35 yoF presents to your office with a BMI of 32 and a glucose reading of 600. Her HbA1c is 8.5%. What is your DOC? what is a worrisome SE of this drug?
metformin- the insulin sensitizer bc it is #1 for decreasing HbA1c and a first line thx for type 2 DM.

se: lactic acidosis
CI in renal and hepatic failure and cadiac failure
a 45 yoF was just diagnosed w/ type 2 DM and given a drug to help manage it. She comes back 3 weeks later complaining of increased flatulence, N/V, and abdominal pain. what medication was she put on?
metformin-- can cause B12 anemia, N/V, flatulence and abdominal pain in up to 50% of pt. Must be titrated before given.
what is the MOA of metformin?
antihyperglycemic:

decreases gluconeogenesis, inc glycolysis and peripheral glucose uptake.
which drug bind to the PPAR-gamma nuclear transcription regulator? how does it work?
the Thiazolidinediones (pioglitazone, rosiglitazone)

works by causing activation of the PPAR-y receptors which incr insulin sensitivity and levels of adiponectin --> incr fatty acid storage and glucose metabolism.
36 yoF is prescribed pioglitazone for her type 2 DM, what drug might she be on that would interfere with the efficacy of this drug?
ocp-- they decrease affectiveness
What side effect do both insulin sensitizers have in common?
anemia
what are the main serious side effects associated with the thiazolidinediones?
weight gain ( not as much as SUs), edema, hepatotoxicity, heart failure
which antidiabetic drug inhibits intestinal brush-border enzymes?
alpha-glucosidase inhibitors: acarbose and miglitol
which antidiabetic drug has not only anti-glucagon affects but also affects on the CNS causing anorexic tendencies?
pramlintide

amylin-analog--- delays gastric emptying
anorexic effect via hypothalamic receptors
which antidiabetic drug causes an increas in insulin and a decrease in glucagon release by stimulating the GLP-1 receptor?
exenatide

stim glp-1 receptor which is a Gs coupled receptor which increases insulin gene expression and B cell mass
which drug is associated with weight gain (lots of weight) and B cell burn out?
sulfonylureas
which antidiabetic drug inhibits DPP-IV? how does that stimulate glucose dependent insulin secretion?
Sitagliptin

DPP-IV is inhibited which prevents the degradation of GLP-1 and other GLP-1 like molecules.
what two receptors will be antagonized in order to be used as an antiemetic?
dopamine (D2) and serotonin (5-HT3)
what are the three commonly used drugs for antiemetics?
phenothiazines
5HT3 inhibitors
metoclopramide
what drug is a dopamine antagonist that is also a prokinetic agent? what does it do?
metoclopramide

increases lower esophageal sphincter pressure and increases gastric emptying.
what is the problem w/ phenothiazines (prochlorperazine)?
increased dose improves antiemetic affect but limited by adverse effects: sedation and extrapyramidal sxs
your pt is vomiting d/t their leukemia tx, what drug should you prescribe them? what about prophylactically?
antiemetics (-setrons) for both before and after

esp: ondansetron

also: granisetron and dolasetron
your pt is a DM and comes into your office coming of N/V/ dyspepsia. you diagnose them with having gastroperesis. what drug do you prescribe to them? why?
Metoclopramide

its a central dopamine antagonist and it elevates the CTZ threshold. It will increase gastric emptying and increase lower esophageal sphincter pressure.
which H1 antihhistamine has the fewest SEs and is specific for motion sickness?
meclizine
you have a pt who is on chronic morphine for fibromyalgia, they come into your office complaining of constipation, abdominal distention and bloating. What do you prescribe them?
docusate-- will effectively control constropation assoc w/ chronic morphine use
Pt w/ traveler’s diarrhea– pt has stopped traveling and has had diarrhea for past 72 hrs and is severely dehydrated. This pt needs to sleep and needs to stop defecating, what antidiarrheal can answer both of these wants?
diphenoxylate d/t its peripheral and CNS opiate effects
what is combined w/ diphenoxylate to prevent abuse?
atropine
which antidiarrheal agent only has peripheral nervous system effects?
loperamide
You have a pt who has IBD, but is also able to sleep inbtwn bowel movements, what drug would you prescribe him?
loperamide

no CNS effects-- no sedation
which antidiarrheal agent is primarily an antisecretory and antiinflammatory agent?
bismuth

inhibits PG synthesis and reduces hypermotility and inflammation
what is the triad assoc w/ IBD?
assoc w/ immune dysregulation, bacterial pathogenesis and genetic presdisposition
which disease has just colonic and rectal inflammation? which one has transmural inflammation of the entire intestinal tract?
Ulcerative colitis- colonic and rectal inflammation

crohns: transmural inflammation
what is the stepwise approach (algorithm) for tx IBD?
1) aminosalicylates
2) corticosteroids
3) immunosuppressive antimetabolites
4) monoclonal abs
what is the DOC for the aminosalicylates in IBD?
sulfasalazine-- release of 5 aminosalicyclic acid in the large intestine inhibiting synthesis of PGs and inflammatory LTS
what is the stepwise approach (algorithm) for tx IBD?
1) aminosalicylates
2) corticosteroids
3) immunosuppressive antimetabolites
4) monoclonal abs
What is the DOC for the mesalamine compounds for tx IBD? what does it do?
pentasa

FR scavenger or an inhibitor of TNF by decreasing PGs
what is the DOC for the aminosalicylates in IBD?
sulfasalazine-- release of 5 aminosalicyclic acid in the large intestine inhibiting synthesis of PGs and inflammatory LTS
you have a crohn's pt who is in remission and then undergoes an exacerbation, what do you do?
tx them with a corticosteroid (hydrocortisone) during the exacerbation
What is the DOC for the mesalamine compounds for tx IBD? what does it do?
pentasa

FR scavenger or an inhibitor of TNF by decreasing PGs
what are the 2 immunosuppressant highlighted for IBD?
azathioprine and MTX
you have a crohn's pt who is in remission and then undergoes an exacerbation, what do you do?
tx them with a corticosteroid (hydrocortisone) during the exacerbation
what are the 2 immunosuppressant highlighted for IBD?
azathioprine and MTX
your pt who has crohn's and is on mesalamine is given CS during ane exacerbation, but prior to this situation the pt was placed on MTX d/t their mega colon, what drug is considered a step up?
infliximab: TNF-alpha antagonists

used in tx of severe exacerbation & ongoing crohn's dz where pt has failed conventional therapy
what are the 3 steps to tx IBS?
dietary modification
antispasmodic agents (dicyclomine and scopolamine)
antidiarrheal agents
which antidepressant is the chosen group of antidepressants to tx IBS? why?
SSRI's bc they are more rapid and have fewer SEs as compared to TCAs

DOC: fluoxetine- very long half life

modulation of pain via effects on neurotransmitter reuptake.
what drug is the most efficacious of all the antisecretory agents
Proton pump inhibitors
what are the three causative factors of PUD? which one has the greatest pathogenicity?
1) NSAID use, alcohol, smoking, stress
2) zollinger ellison syndrome
3) H. pylori-- assoc w/ 90-95% of duodenal ulcers---greatest pathogenicity.
what is helicobacter pylori? what is the biggest worry associated with H. pylori?
gram negative spiral bacterium with flagella that it uses the burrow its way through the GI tract.

biggest worry: 50% of these strains produce vacuolating cytotoxins associated w/ gastric CA
If the pH of the GI tract is 1.4, how does H. pylori survive?
its a urease producing organism
what are the 4 ways in which you can diagnose H. pylori infection? which is the least invasive?
upper endoscopy
serologic ab detection tests
urea breath test- least invasive
stool antigen test
how do you tx peptic ulcer disease?
eliminate H pylori
reduce gastric acid secretion or acid neutralization
protect gastric mucosa from further damage & back diffusion of acid
what can prolonged use of antacids cause in a pt? who should you avoid magnesium containing antacids in?
systemic alkalosis; pts w/ renal impairment
Pt on cardiac drug goes home and takes and OTC suddenly presents w/ cardiotoxicity and in that cardiotoxicity, pt presents w/ GI disorders, tinnitus, deafness. What is the drug?
Quinidine

fun fact from Krishna
what 3 drugs do antacids interfere with?
digoxin, ketoconazole and isoniazid--- they need an acidic environment and antacids are ruining it
which drugs are chelated leading to their reduction in drug bioavailability when your pt is taking an antacid?
tetracycline, ciprofloxacillin
which H2 antagonists is highly selective for H2 receptors on parietal cells? what affect does it have on other drugs? what is the effect of chronic use of this drug?
cimetidine
dec hepatic metabolism of warfarin, phenobarbital, phenytoin, diazepam, propranolo---> anything hat uses the cyp450 system, cimetidine is an inhibitor

chronic use= antiandrogen effects
which H2 antagonist blocks daytime and nocturnal basal gastric acid secretion?
ranitidine
what is the MOA of PPIs?
noncompetitive antagonist -irreversible inhibitors of H+/K+ ATPase
what is the issue when combining an antacid and a PPI?
the PPI is rapidly absorbed in its inactive form, but in order for it to be activated, it needs to be in an acidic environment. Antacids neutralize acidic environments.
when is a PPI most effective?
30 minutes before meals.
which PPI has a better eradication rate of H. pylori when given in combo w/ antibacterial agent?
omeprazole
what two PPIs selectively inhibit CYP450-2c19? what can this lead to? what are the alternatives?
omeprazole and esomeprazole- CYP450 inhibitors which can lead to a decreased elimination of phenyoin, diazepam and warfarin which can cause toxicity.

rabeprazole and pantoprazole have no interaction with the CYP450 system and can be used.
what is the cytoprotective agent used to tx PUD?
bismuth subsalicylate
what is the 1st line therapy for pts colonized with H. pylori? with what drug?
ERADICATE H. PYLORI

drug: combo therapy ("triple therapy") PPI w/ metronidazole or amoxicillin plus clarithromycin 7-14 days
what is the tx regement for pts with severe ulceration and colonization w/ H. pylori?
Omeprazole + bismuth subsalicylate + metronidazole + tetracycline (amoxillin/ clarithromycin)
Ulcer that is NSAID induced and needs to continue NSAID therapy- what drug should we use? what if they have underlining CV disorder?
1) celecoxib
2) omeprazole
what IS the DOC for zollinger-ellison syndrome?
PPI esp omeprazole
what fxn do PPI's have in zollinger-ellison syndrome?
reduce size, vascularity, and acid secretion of the tumor before surgery.
what do you give to pts who were treated with the triple therapy but it did not eradicate the h. pylori? or pts who had an ulcer than had nothing to do w/ H pylori
low does H2 antagonist of PPI