Shared Flashcard Set

Details

Immunosuppressant Drugs/Arthritic Drugs
IUSM
66
Pharmacology
Professional
03/26/2015

Additional Pharmacology Flashcards

 


 

Cards

Term
cortisone
Definition
Class: glucocorticoid, immunosuppressant

Mechanism: pass through membrane bind receptor in cytosol (releases hsps), homodimerization of receptors, translocate to nucleus, active TF to induce transcription of anti-inflammatory gene products

Indication: prevent and treat transplant rejection, graft vs. host disease, autoimmune disorders

Adverse Effects: increased susceptibility to infection, increased glucose elvels and DM, secondary hyperparathyroidism, osteoporosis, edema, suppression of linear bone growth (in children), steroid psychosis, Cushing's-like effects, withdrawal adrenal insufficiency, myopathy
Term
dexamethasone
Definition
Class: glucocorticoid

Mechanism: pass through membrane bind receptor in cytosol (releases hsps), homodimerization of receptors, translocate to nucleus, active TF to induce translation of anti-inflammatory gene products

Indication: prevent and treat transplant rejection, graft vs. host disease, autoimmune disorders

Adverse Effects: increased susceptibility to infection, increased glucose elvels and DM, secondary hyperparathyroidism, osteoporosis, edema, suppression of linear bone growth (in children), steroid psychosis, Cushing's-like effects, withdrawal adrenal insufficiency, myopathy
Term
cyclosporine
Definition
Class: calcineurin inhibitor, immunosuppressant

Mechanism: bind cyclophilin, block dephosphorylation of NFAT by calcineurin, thus NFAT doesn't enter nucleus and this blocks the production of IL-2

Indication: organ transplant (in combo)

Adverse Effect: NEPHROTOXICITY (majority of pt), HTN (~50% of renal transplants), tremor, (hepatotoxicity, hyperlipidemia, hirsutism, gum hyperplasia)

Pharmacokinetics:
Admin - oral or iv
Absorb - slow, 20-50% bioavail
Metab - extensive by CYP3A, drug interactions
Term
tracolimus
Definition
Class: calcineurin inhibitor, immunosuppressant

Mechanism: binds FK binding protein (FKBP), prevents dephosphorylation of NFAT by calcineurin, prevents production of IL-2

Indication: prevent and treat transplant rejection [use therapeutic drug monitoring b/c of nephrotoxicity]

Adverse effects: NEPHROTOXICITY, neurotoxicity (HA, tremor, seizures), (hepatoxicity, hyperlipidemia, hirsutism, gum hyperplasia)

Pharmacokinetics: metabolized by CYP3A (drug interactions)
Term
sirolimus (rapamycin)
Definition
Class: immunosuppressant

Mechanism: binds FKBP, blocks the IL-2 receptor signaling and arrests cell division by blockin mTOR (a kinase)

Indication: prophylaxis in organ transplant rejection (ESP. PT WITH HIGH RISK FOR NEPHROTOXICITY)

Adverse effects: hyperlipidemia, leukopenia, thrombocytopenia

Drug interaction: aggravates cyclosprine renal dysfx so do not combine
Term
azathioprine
Definition
Class: anti-metabolite, immunosuppressant

Mechanism: prodrug analog of mercaptopurine, inhibits gene translation; more effective than mercaptopurine (due to pharmacokinetics)

Indication:

Adverse effect: BONE MARROW SUPPRESSION, increased susceptibility to infection
Term
methotrexate
Definition
Class: anti-metabolite, immunosuppressant

Mechanism: folate analog, inhibits dihydrofolate reductase; cytotoxic and anti-inflammatory effects

Indication: cancer, rheumatoid arthritis, graft vs. host dz

Adverse effect: IMMUNOSUPPRESSION, fasting grow cell effects (hair loss, GI stuff)
Term
mycophenolic acid
Definition
Class: anti-metabolite, mycophenolic acid

Mechanism: inhibits inosine monophosphate dehydrogenase (IMPDH) the rate limiting enzyme in guanosine formation; preferentially acts in lymphocytes (more dependent on IMPDH for purines, isoform II used by lymphocytes is specifically targeted)

Indication: combo for transplant rejection (glucocorticoids and calcineurin inhibitors, NOT with azathioprine)

Adverse effects: vomit, diarrhea, leukopenia, increased risk of infection
Term
daclizumab
Definition
Class: humanized Ab, immunosuppressant

Mechanism: anti-CD25 mouse monoclonal Ab; binds IL-2 receptor on activated T cells; LOWER AFFINITY

Indication: prophylaxis for renal transplants in combo w/ other immunsuppressants

Adverse effects: infection, anaphylactic rxn
Term
basiliximab
Definition
Class: humanized Ab, immunosuppressant

Mechanism: anti-CD25 mouse monoclonal Ab; binds IL-2 receptor on activated T cells; HIGHER AFFINITY

Indication: prophylaxis for renal transplants in combo w/ other immunsuppressants

Adverse effects: infection, anaphylactic rxn
Term
inflammatory mediators - vasodilation
Definition
prostaglandins (PG..)
nitric oxide
CGRP
histamine
Term
inflammatory mediators - increased vascular permeability
Definition
histamine
C3a, C5a - complement components
bradykinin
leukotrienes (LT)
platelet-activating factor
Term
inflammatory mediators - chemotaxis and leukocyte activation
Definition
C5a
LTG4, lipoxins (LX)
bacterial antigens
Term
inflammatory mediators - tissue damage
Definition
PMN and macrophage
lysosomal products
oxygen radicals
nitrous oxide
Term
inflammatory mediators - fever
Definition
IL-1
IL-6
TNF
PGE2
Term
inflammatory mediators - pain/hypersensitivty
Definition
PGE2, PGI2
bradykinin
tryptase
ATP
Term
define cytokine/chemokine

(what they are, when released, bind to what, special note)
Definition
protein hormones produced as part of innate
immunity by multiple cells

released or activated by cell injury

bind to specific tyrosine kinase receptors or GPCRs

cytokine actions are redundant and can influence synthesis of other cytokines
Term
alprostadil

(class, mechanism, indication)
Definition
Class: prostaglandin

Mechanism: PGE1 analog

Indication: maintain ductus arteriosus (i.e. when need to perform cardiac procedures post-birth)
Term
misoprostrol

(class, mechanism, indication)
Definition
Class: prostaglandin

Mechanism: PGE1 analog, inhibits gastric acid secretion, inhibits pepsin secretion, increases mucus secretion in GI tract

Indication: promote ulcer healing
Term
dinoprostone

(class, mechanism, indication)
Definition
Class: prostaglandin

Mechanism: PGE2 analog

Indication: suppositories for parturition
Term
acetylsalicylic acid (aspirin)

(class, mechanism, indication, contraindiction)
Definition
Class: NSAID

Mechanism: COX-1 inhibitor, irreversible

Indication: pain, osteoarthritis, RA

Contraindication: ulcer, allergic, clotting disorders, pregnancy (3rd trimester esp.), gout, viral infections in kids/young adults

Adverse Effects: see NSAID flashcards
Term
acetaminophen

(class, mechanism, effects, indication, adverse effects)
Definition
Class: pseudo-NSAID

Mechanism: COX1 inhibitor

Effects: analgesic, antipyretic, no anti-inflam action, weak platelet effects, no uricosuric effects, no alterations in acid-base, minimal GI effects at therapeutic doses

Indication: pain, osteoarthritis, gout, RA
(esp. with benefits from above)

Adverse Effects: overdose can cause fatal hepatic necrosis
Term
n-acetylcysteine

(mechanism, indication)
Definition
Mechanism: recycles glutathione

Indication: treatment of acetaminophen poisoning
Term
celecoxib

(class, mechanism, benefits, indication, contraindication, adverse effects)
Definition
Class: NSAID, Cox2 inhibitor

Mechanism: inhibits COX2

Benefits: less GI side effects, less renal toxicity, no platelet effects

Indication: pain, OSTEOARTHRITIS

Contraindications: sulfa sensitivity, GI bleeding or ulceration

Adverse Effects: MI AND STROKE RISK IN PT WITH UNDERLYING CVD
Term
adalimumab

(class, mechanism, indication)
Definition
Class: biologic modifier, arthritic

Mechanism: antibody to TNF-alpha

Indication: Crohn's, RA, psoriasis, ankylosing spondylitis

Adverse effects: see biologic flash card
Term
ibuprofen

(class, note)
Definition
Class: NSAID, arylproprionic acid

less GI side effects
Term
naproxen

(class, note)
Definition
Class: NSAID, arylpriopioinic acid

twice daily dosing
Term
contraindication for biologic modifiers
Definition
active infection
traveling to area with certain risk of infection
more susceptible to infection already
Term
entanercept

(class, mechanisum, indication)
Definition
Class: biologic modifier, arthritic

Mechanism: fusion protein to TNF-alpha receptor binding site; false receptor that binds up TRF-alpha in circulation thus decreases its effects in inflammatory dz

Indication: RA, Crohn's disease

Adverse effect: see biologic flash card
Term
infliximab

(class, mechanism, indication)
Definition
Class: biologic modifier, arthritic

Mechanism: antibody to TNF-alpha

Indication: Crohn's, RA

Adverse effects: see biologic flash card
Term
natalizumab

(class, mechanism, indication)
Definition
Class: biologic modifiers, arthritic

Mechanism: humanized monocolonal antibody to alpha4 integrin; blocks migration of T cells into gut

Indication: Crohn's

Adverse effects: see biologic flash card
Term
golimumab

(class, mechanism, indication)
Definition
Class: biologic modifiers, arthritic

Mechanism: antibody to TNF-alpha

Indication: RA, psoriatic arthritis, ankylosing spondylitis
Term
colchicine

(class, mechanism, indication, adverse effects)
Definition
Class: arthritic drug

Mechanism: inhibits cell migration and thus decreases inflammatory response

Indication: gout (when NSAID not effective)

Adverse effects: GI distress, abdominall pain, myopathy & neuropathy -> weakness, blood dyscrasias
Term
probenecid

(class, mechanism, indication, adverse effects)
Definition
Class: arthritic

Mechanism: compete with reabsorption of uric acid from urine, thus increase uric acid exretion

Indication: gout (prevent hyperuricemia)

Adverse effects: precipitate uric acid crystals in renal tubules, rash, hypersensitivty rxn, GI irritation in pt w/ peptic ulcers
Term
sulfinpyrazone

(class, mechanism, indication, adverse effect)
Definition
Class: artrhitic

Mechanism: compete with reabsorption of uric acid from urine, thus increase uric acid exretion

Indication: gout (prevent hyperuricemia)

Adverse effects: precipitate uric acid crystals in renal tubules, rash, hypersensitivty rxn, GI irritation in pt w/ peptic ulcers
Term
allopurinol

(class, mechanism, indication, adverse effects)
Definition
Class: arthritic

Mechanism: decrease uric acid production, inhibits xanthine oxidase

Indication: gout

Adverse effects: rash, hypersensitivity rxn, fever, malaise, muscle aches, rarely leukopenia
Term
abtacept

(class, mechanism, indication)
Definition
Class: biologic modifiers, arthritis

Mechanism: fusion protein to CTLA-4, costimulation modulator

Indication: inflammatory diseases

Adverse effect: see biologic flash card
Term
febuxostat

(class, mechanism, indication, adverse effects)
Definition
Class: arthritic

Mechanism: decrease uric acid production, inhibits xanthine oxidase

Indication: gout

Adverse effects: rash, hypersensitivity rxn, fever, malaise, muscle aches, rarely leukopenia
Term
tofacitinib

(class, mechanism, indication, adverse effects)
Definition
Class: biologic modifiers, arthritic

Mechanism: JAK1 and JAK3 inhibitors, blocks STAT-1 dependent gene expression, intracellular signaling block of cytokines

Indication: inflammatory diseases

Adverse effects: see biologic flash card
Term
treatment of pain - classes used
Definition
NSAIDs
acetaminophen
COX2 inihbitors
Term
treatment of osteoarthritis - classes used
Definition
NSAIDs
capsaicin
glucosamine/chondroitin - not proved by NIH
glucocorticoids
COX2 inhibitors
Term
treatment of gout - classes used
Definition
NSAIDs
glucocorticoids
xanthine oxidase inhibitors (allopurinol, febuxostat)
colchicine
Term
treatment of rheumatoid arthritis - classes used
Definition
NSAIDs
immunosuppressants
biologic modifiers
Term
treatment of IBD/Crohn's Dz - classes used
Definition
mesalmine (5-ASA)-based therapies
glucocorticoids
antibiotics
immunosuppressants
biologic modifiers
Term
treatment of psoriasis - classes used
Definition
topical agents (glucocorticoids, Vit D analogs, retinoids)
light therapy
immunosuppressants
biologic modifiers
Term
eicosanoid
Definition
class of molecules produced endogenously through the metabolism of arachidonic acid
Term
prostaglandin - CV effects
Definition
Blood pressure - PGE and PGI2 decrease it, thromboxane A2 increases
Heart - PGE and PGI2 dilate coronary vessels, TXA2 constricts them
TXA2 stimulates platelet aggregation
PGI2 (prostacyclin) inhibits platelet aggregation
Term
prostaglandin - renal effects
Definition
PGE and PGI2 cause vasodilation, natriuresis, diuresis and renin release
Term
prostaglandin - resp. effects
Definition
PGE and PGI2 dilate bronchioles
TXA2 and PGF2alpha constrict bronchioles
PGE2 used as aerosol for asthma, but too short duration for clinical popularity
Term
prostaglandin - GI effects
Definition
PGE2 and PGI2 inhibit gastric acid and pepsin secretion, icnrease mucous secretion
Term
prostaglandin - reproductive effects
Definition
PGE2 relaxes non-pregnant, but contracts pregnant uterus
PGF2alpha contracts pregnant and non-pregnant and causes lysis of corpus luteum
PGE2 and PGF2alpha used as contraceptive/induce abortion/control post-partum hemorrhage
Term
prostaglandin - pain and inflammation
Definition
synthesized and found in synovial fluid in inflammation
produce pain or hyperalgesia
Term
prostaglandin - fever
Definition
central admin esp. into hypothalamus produces it
Term
clinical uses of prostanoids
Definition
1. promotes dilation of cervix, facilitates labor - PGE2
2. gastric protection - misoprostol
3. improve harvesting and storage of platelets (PGG, PGI2)
4. impotence? - alprostadil (PGE1)
5. dilate pulmonary vessels - epoprostenol PGI1
6. maintenance of patent ductus arteriosus - alprostadil
Term
general NSAID things
Definition
no tolerance develops
reduce symptoms, doesn't affect underlying dz
choice of which one is largely empirical

Benefits: analgesic, antipyretic, anti-inflammatory (except acetaminophen)

Adverse: gastric irritation, altered respiration, disturbs acid-base balance, increased bleeding, prolongation of gestation, potential renal damage
Term
NSAID adverse - gastric
Definition
epigastric distress
nausea
vomiting
gastric ulceration
hemorrhage
exacerbate ulcers
hepatotoxicity
Term
NSAID adverse - cardiovascular
Definition
inhibit platelet aggregation
prolong bleeding
toxic conc. can depress circulation
Term
NSAID adverse - immune
Definition
aspirin intolerance
hypersensitivity (skin, astham, anaphylaxis)
Term
Reye's syndrome
Definition
recurrent vomiting
listlessness
irritability
combativeness
disorientation or confusion
delirium
convulsions
loss of consciousness
prognosis linked to brain swelling - increased intracranial pressure
assoc. between young kids/adults with viral infection and treated with aspirin
Term
NSAID adverse - renal
Definition
acute renal insufficiency w/ underlying disease (liver disease + ascites, CHF, renal disease)
Term
NSAID adverse - joints
Definition
low dose decrease urate excretion
antagonize uricosurics
worsen gout
Term
aspirin poisoning - 1* effects
Definition
CNS - tinnitus, mental confusion, hearing loss, convulsions, coma; stimulate respiratory center

GI - nausea, vomiting

General - hyperthermia, dehydration, uncouples oxidative phosphorylation
Term
aspirin poisoning - 2* effects
Definition
respiratory alkalosis
metabolic acidosis
water and electrolyte loss
cardio and respiratory arrest w/ severe intoxication
Term
COX1
Definition
produces thromboxanes in platelets
(vasoconstriction and platelet aggregation results)
Term
COX2
Definition
produces prostacyclin in endothelial cells
(vasodilation and blocking of platelet aggregation result)
Term
adverse effects of biologic modifiers
Definition
2* to injection - pain, swell, itch, fever, chills, rash
INFECTION - compromised immune state
nausea, vomiting, HA, abdominal pain
potential for malignacies
CYTOKINE RELEASE SYNDROME - reduced by humanization
infiximab - reproted to cause anaphylaxis or lupus-like syndrome on rare occasion
very expensive
Supporting users have an ad free experience!