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pharm
pharm II
160
Medical
Graduate
01/20/2011

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Term
Acute pain
Definition
short duration-
unpleasant sensory & emotional experience associated w?actual or potential tissue damage or described in terms of such damage
Term
Chronic pain
Definition
pain that persists beyond the time of expected healing
Term
Cancer pain
Definition
pain related to tumor recurrence or treatment
Term
Mechanisms of pain transmission
Definition
pain signal transmission starts at the nociceptors (free nerve endings) that can sense many types of tissue injury
Term
stimulates Nociceptors
Definition
Biochemicals including Leukotrienes, prostaglandins, & histamine
Term
3 kinds of endogenous endorphins
Definition
enkephalins, dynorphins, B-endorphins
Term
interact in opiate receptors in the brain
Definition
endorphins & narcotic analgesics
Term
pain that cannot be described by nociceptors
Definition
neuropathic pain, pain modulated w/out nociception, sympathetically maintained pain, phantom limb pain
Term
incorrect assumptions
Definition
there is a correct amount of pain for a given injury
people become easily addicted to narcotics
Term
incorrect attitudes
Definition
pain is necessary b/c it builds character
the use of analgesics is evidence of weak character
Term
complexity of pain assessment
Definition
pain is difficult to assess in young kids & elderly (dementia) patients b/c they often aren't able to express the extent of their discomfort
INadeuwate assessment techniquefoster undertreatment b/c PRN dosing is based on patients report of need for analgesics
Term
predictors of inadequate pain management
Definition
age, non-caucasian, low cognitive performance, multiple other meds
Term
Principles of effective pain assessment
Definition
Palliative/Provocative factors, Quality, Radiation, Severity, Temporal factors
Term
pain assessment
Definition
measure pain using self reportand/or behavioral observation tools, interpret behaviors cautiously, tailor assessment strategy to development level & situation, use caregivers report if patient is unwilling or unable, use physiologic measures only as adjuncts of self report & behavioral observation, assess pain at regular intervals PAIN AS A 5th VITAL SIGN
Term
physiologic
Definition
heart rate, BP, RR, diaphoresis
Term
Behavioral
Definition
cry characteristics, facial expression, objective pain scale
Term
Self-report
Definition
faces pain rating scale, numerical rating scale,
descriptive rating scales, visual analogue scales
Term
principles of effective pain management
Definition
assess pain intensity & relief at regular intervals, respect patient preferences, eval the effectiveness of pain management & medication side effects & adjust regimen as needed. Suspect pain! Patient may not be able to report
Term
Nonpharmacological therapy
Definition
TENS, Psychological intervention:info on sensations to expect after procedures, relaxation training, controlled mental imagery, controlled attention or distraction, hypnosis, Biofeedback
Term
treatment:acute pain
Definition
eliminate underlying cause if possible
STEP1 +non-opioid+/-adjuvants
STEP2 weak opioids +non-opioids +/- adjuvants
STEP 3 strong opioids +non-opioids +/- adjuvants
Term
Non-opioid analgesics
Definition
acetaminophen (Tylenol), NSAIDS, ASA
Term
Acetaminophen (Tylenol)
Definition
analgesic & anti-pyretic effects lacks anti-inflammatory activity, treats mild-mod pain, =ASA
Term
NSAIDS
Definition
Analgesic, antipyretic, & anti-inflammatory effects
produce no tolerance or dependence
ceiling effect to analgesia (flat-dose response curve for pain)
Term
nonsalicylates
NSAIDS & Cox 2
Definition
Non-selective NSAIDS (traditional) Ibuprofen, naproxen
Partially selective NSAIDS nabumetone, meloxicam
Selective Cox2 Inhibitors celecoxib
Term
salicylates
Definition
Acetylated ASA
nonacetylates salsalate, trisalicylate
Term
NSAID efficacy
Definition
a single full dose, most nonselective NSAIDs are more effective than full dose ASA or APAP
Some have >= analgesic effect of oral opioid combo
some patients respond better to 1 NSAIDs than another
Celecoxib single 100-200 mg dose is less effective than ibuprofen 400 mg or naprosyn 550mg
Term
NSAID Adverse effect
Definition
GI-dyspepsia, mucosal lesions, serious GI complications
Renal, hematological, Cardiovascular, Hepatic, CNS: high doses can cause sedation & decreased cognition in elderly
Term
High risk patients
(consider gastroprotective therapy)
Definition
60+y.o., prior PUD or GI Bleed, High dose or more toxic NSAIDs, concurrent corticosteriod, biphosphate, or SSRi use, anticoagulant use or coagulopathy, antiplatelet use (ASA, clopidogrel), chronic illness (CV disease)
Term
GI NSAID mucosal damage
Definition
due to direct or topical irruption of gastric epithelium or systemic inhibition of endogenous GI mucosal prostaglandins synthesis
Term
Nephrotoxicity
Definition
toxicity is related to NSAID effects on renal prostaglandins that help to increase renal blood flow & maintain renal function
Term
nephrotoxicity
Definition
more pronounced in patients w/pre-existing renal disease
intersitial nephritis, hyperkalemia, hyponatremia & papillary necorsis have also been reported w/various NSAIDs
Term
risk factors of Nephrotoxicity
Definition
old age, CHF, renal insufficiency, ascites, volume depletion, diuretic therapy
Term
hematologic toxicity
Definition
may prolong bleeding times due to anti-platelet effects
Term
hematological toxicity
Definition
ASA inhibits platelet aggregation for the lifetime of the platelet (7-10 days)
other non-selective NSAIDs affect platelet aggregation to a lesser degree & only when the drug is "on board"
Term
hematologic toxicity
Definition
do not affect iNR but do increase bleeding risk when used w/anticoagulants
Term
cardiovascular toxicity
Definition
may increase CV risk, potential varies between NSAID subtypes
Term
CV toxicity
Definition
selective Inhibition of COX-2 may decrease endothelial production of prostacyclin, which may vasoconstrictor, platelet aggregation, & throbosis
Term
CV toxicity
Definition
Risk usually increases w/higher doses longer duration, & degree of COX-2 selectivity
Term
CV toxicity
Definition
highest w/celecoxib>meloxicam>etodolac>NAPROXEN is the lowest
Term
NSAIDs inhibit ASA Antiplatelt effect
Definition
take non-enteric coated ASA 1 hr before Ibuprofen or naproxen )so it can bind to platelets 1st)
Term
CV risk of NSAIDs
Definition
NSAIDs may increase Blood pressure
Term
Hepatoxicity
Definition
overall incidence is <0.1% with >300 hospitalizations/year
Term
Hepatotoxicity
Definition
no clear link between chemical structures & risk
Histological type of injury varies within/between chemical classes
No consistent mechanism for liver injury from NSAIDs
Term
NSAID combos
Definition
help to protect GI mucosa
diclofenac/misoprostol (Arthotec)
lansoprazole/naproxen (Prevacid NapraPAC)
Term
ASA Acetylated salicylate
indications:
Definition
mild to moderate pain, prevention of MI, CVA
Term
ASA Acetylated salicylate
MOA
Definition
Analgesic: inhibits PG synthesis, prevents formation of TxA2
Antipyretic: inhibition of hypothalamic heat-regulating center
Term
ASA Acetylated salicylate
doses:
Definition
325-650 mg q 4hrs (max 5400 mg/day)
Term
ASA Acetylated salicylate
Adverse effects:
Definition
platelet inhibiton (for life of platelet), ASA sensitivity (asthma, bronchospasm, angioedema, urticaria) related to COX-1 inhibition, which decreases PG E2 production, increase leukotriene production and increases histamine release (not a TRUE allergy but can be significant), Reye's syndrome
Term
NON-OPIOID summary
Definition
APAP, NSAIDs, Salicylates
Term
OPIOID functions
Definition
analgesic
adverse effect-respiratory depression, mitosis, reduced gastric motility, sedation, euphoria, dysphoria, psychotomimetic effect
Term
Common major effects of Opioids
Definition
Drowsiness, N&V, constipation (does NOT wane, remains constant), pruritis
Term
Severe major effects of Opioids
Definition
Decreased respiratory rate
greater concern w/COPD, cor pulmonale, decrease respiratory reserve, pre-existing resp. depression, general anesthetics, phenothiazines, barbituates, TCA's, CNS depressants
Term
Opioid & receptor activity
Agonist
Definition
maximal biologic response through binding to the opioid receptor
Term
Opioid & receptor activity
partial agonists
Definition
submaximal response at the receptor even at high doses
Term
Opioid & receptor activity
agonist/antagonists
Definition
divergent activities at different receptors (mixed)
-analgesic ceiling
-ceiling effect on respiratory depression
-lower abuse potential
-can precipitate w/drawl in patients who are dependent on full agonist (use to be on agonist & now switched)
Term
Opioid & receptor activity
Antagonist
Definition
reverse or inhibit the effects of agonists by preventing receptor access
Term
selecting an Opioid
Definition
severity & type of pain
duration of expected treatment
duration of action necessary
route of administration
pt adherence/ability to self dose
allergies or intolerance
concomitant meds
cost
Term
Opioid withdrawl symptoms
minor
Definition
Rhinorrhea
lacrimation
excessive yawning
mild irritability or restlessness
mild N&V
Term
Opioid withdrawl symptoms
Moderate
Definition
increasing restlessness or irritability
tremors
ab craoms
anxiety
persisitent N&V
increased HR, BP, hot or cold flashes, fever
Term
opioid intolerance & allergy management
pseudoallergy
Definition
flushing itching, sweating, mild hypotension
OPTIONS- non opioid (NSAID, APAP), avoid commonly associated opioids (codeine, morphine, meperidine), use more potent Opioids that release less histamine, if needed use diphenhydramine
Term
opioid intolerance & allergy management
true allergy
Definition
nonopioid analgesic (NSAID, APAP)
opioid in a different chemical class w/close monitoring
Term
adjuvant analgesics
Definition
caffeine, hydroxyzine, corticosteriod
Term
caffeine
Definition
dose 65-200 mg
may enhance analgesic effect of APAP, ASA, or ibuprofen
Term
Hydroxyzine
Definition
Anti-histamine dose 25-50 mg
may add to analgesic effect of opioids in post operative & cancer pain while reducing the incidence of N&V
Term
Corticosteriods
Definition
can produce analgesia in some patient w/inflammatory diseases or tumor infiltration of nerves
Term
4 types of persistent pain
Definition
pain persisting beyond the normal healing time for a disease or injury
pain related to chronic degenerative disease or neurologic condition
pain that emerges or persists w/out an identifiable cause
cancer pain
Term
signs or symptoms of persistent pain
Definition
DEPRESSION, ANXIETY, SLEEP DISTURBANCES, frustration, anger, low self esteem, low involvement in social activities, financial stresses & conners, decreased libido, work issues, inactivity, altered family dynamics, frequent use of meds, legal issues, increase # of Dr visists
Term
treatment goals
Definition
increase tolerance for physical activity
decrease suffering & pain
decrease reliance on the health care system
decrease reliance on meds
return to work or function in society
develop appropriate strategies for self-management
Term
general strategies
Definition
simultaneously address the various components of the problem
taper use of inappropriate meeds while initiation appropriate therapy
provide education about chronic pain, correct misconceptions
focus on increase function & physical activity
establish a time frame for achieving specific goals
remind your patient & yourself that chronic pain isn't the same as acute pain
emphasize the mulitfactorial nature of chronic pain & avoid the distinction between physical & psychological causes
Term
persistent pain treatment options
nonpharmacologic
Definition
TENS, biofeedback, PT
Term
persistent pain treatment options
pahrmacologic
Definition
non-opioids (APAP, NSAIDs good for bone pain)
tramadol, opioids, adjuvant analgesics (TCAs, AED, SNRI, SSRIs)
Term
persistent pain Opioids
Definition
titrate dose w/scheduled regular release products
use regular release products prn for breakthrough pain
consider sustained release when adequate dose is established
3guidelines chronic Opioid noncancer pain=suggest assessing for substance abuse, get informed consent, & use Opioid contract
Term
Adjuvant analgesic
TCA
Definition
antidepressant, anticholinergic effects (antiSLUD)
sedative onset 2wks
Term
Adjuvant analgesic
AEDs
Definition
only non-antidepressant
Term
Adjuvant analgesic
SNRI
Definition
potent inhibitor of NE, 5-HT reuptake,antidepressant indicated for DM neuropathy & chronic MS pain & OA pain
Term
Adjuvant analgesic
SSRIs
Definition
antidepressant, increase 5-HT in CNS, less effective, less sedative than TCAs
Term
pain management summary
Definition
pain in #1 reason patents seek medical advice
accurate assessment is 1st step in adequate pain management
selection of med should be based on type, severity, & individual patient characteristics
dose titration or change of med is indicated if pain management is unsatisfactory
monitoring of analgesic therapy efficacy is essential for adequate pain management
Term
Rheumatiod arthritis (RA)
Definition
Chronic autoimmune disorder
most common systemic inflammatory disease characterized by symmetrical joint involvement
Term
RA extra-articular involvement may include:
Definition
Rheumatiod nodules
vasculitis
eye inflammation
neurologic dysfunction
cardiopulmonary disease
lymphadenopathy
splenomegaly
Term
epidemiology of RA
Definition
affects 1-2% adults
3x more females, no racial predilections
genetic predisposition & exposure to unknown environmental factors may be needed for expression
Term
pathophysiology of RA
Definition
chronic inflammation of synovial tissue-proliferation-pannus (inflammed, proliferating synovium) which invades cartilage/bone surface-erosions of bone/cartilage-destruction of joint
*factors that initiate the inflammatory process are unknown & joint damage as soon as 2 years post onset of RA
Term
clinical presentation of RA
Definition
insidious onset over several weeks to months
prodromal sx:fatigue, weakness, low-grade fever, loss of appetite, joint pain
stiffness & muscle aches may proceed joint swelling
joint involvement usually symmetrical, involving small joints of hands, wrists & feet
most patients disease wax & wanes in spite of treatment-resulting in progressive joint destruction, deformity, disability, & even premature death
Term
functional classes of RA
Class I
Definition
capable of all activities w/out handicap
Term
functional classes of RA
Class II
Definition
able to conduct normal activities despite handicap of discomfort or limited mobility of one or more joints
Term
functional classes of RA
class III
Definition
functional capacity only adequate to perform a few of the normal duties of usual occupation
Term
functional classes of RA
Class IV
Definition
confined to bed or wheelchair, capable of little or no self-care
Term
treatment goals of RA
Definition
prevent or control joint damage
prevent loss of function
decrease pain & inflammation of joints
Term
complete remission of RA is not frequently achieved
treatment goals than become
Definition
control disease activity
decrease pain
maintain daily function
maximize quality of life
adequately educate the patient about their disease & its treatment
Term
nonpharm treatment of RA
Definition
rest
OT/PT
Patient ed
use of assistive devices
weight reduction
surgery
patient support group
Term
Pharm therapy of RA
Definition
NSAIDS, DMARDs, Methotrexate (MTX), Leflunomide (Arava), Minocycline (Minocin), Hydroxychloroquine (plaquenil), Sulfasalazine (Azulfidine)
Term
NSAIDs for RA
Definition
often initial drug therapy for RA
given at full anti-inflammatory doses
decrease joint inflammation & pain
improve joint function
does NOT prevent joint destruction or slow disease progression, should not be used solo
AE-GI, CV, hepatotoxicty & renal toxicity, antiplatelet effects (ASA & nonselective NSAIDS)
*patients w/RA 2x likely to have serious complications from NSAIDs than w/OA
Nonselective NSAID alternatives: nonacetylated salicylate, COX2I, NSAID+gastroprotective agent (PPI or Misoprostil)
Term
Disease-modifying Antirheumatic Drugs (DMARDs)
Definition
Often selected as initial therapy especially in patients whose RA is more active or severe
appropriate to use in ALL RA patients
recommended to start w/in 3 mos of dx in patients who continue to have signs, sx, or disease progression despite adequate treatment w/NSAIDs
also w/patients not currently being treated but have signs, sx, or disease progression, in order to prevent or delay further joint damage
DMARDs can reduce or prevent joint damage & preserve joint integrity & function
DMARD choice depends on relative efficacy, convenience of administration, monitoring, cost, time to benefit
Term
Methotrexate (MTX)
Definition
effective slows disease progression, low toxicity, & cheap
Term
Methotrexate (MTX)
MOA
Definition
folic acid antagonist, may affect immune funciton
Term
Methotrexate (MTX)
AE
Definition
stomatitis, N/D, alopecia, elevated LFTs, low risk of liver toxicity, thrombocytopenia, leukopenia, rare pulmonary & lymphoproliferative toxicity
Term
Methotrexate (MTX)
CI
Definition
do not use in pregnant or nursing women
Term
Methotrexate (MTX)
notes
Definition
LFT monitoring in necessary, also CBC, caffeine>180mg/day may decrease effectiveness of MTX for RA
Term
Leflunomide (Arava)
Definition
alternative to MTX, for patients who don't tolerate or respond to MTX
as effective as MTX at reducing disease activity & progression
Term
Leflunomide (Arava)
MOA
Definition
inhibits pyrimidine synthesis, resulting in antiproliferative & antiimflammatory effects
Term
Leflunomide (Arava)
AE
Definition
elevated liver enzymes, hepatotoxicity, rare reports of severe infection, pancytopenia, agranulocytosis, & thrombocytopenia, may interact w/Warfarin increasing INR
Term
Leflunomide (Arava)
CI
Definition
liver disease, viral hepatitis, severe immunodeficiency, obstructive biliary disease, inadequate birth control, & treatment w/rifampin (increase Leflunomide (Arava) levels)
Term
Leflunomide (Arava)
notes
Definition
ALT, platelet, WBC, & HmG or Hct monitored
Baseline, monthly for 6mos, then eve 6-8 weeks there after
Term
Minocycline (Minocin)
Definition
recommended for mild disease, early in disease (<6 months) w/low disease activity w/out poor prognostic features
Term
Minocycline (Minocin)
MOA
Definition
unclear
thought to have antimicrobial anti-inflammatory, immunomodulatory & chondroprotective effects, thought to be a potent inhibitor of metalloproteinases (important mediators in RA joint damage)
Term
Minocycline (Minocin)
AE
Definition
photosensitivity, GI upset, pseudomotor cerebri (benign intracranial HTN), abnormal pigmentation, vertigo, rare severe drug interaction (lupus like reaction)
Term
Minocycline (Minocin)
note
Definition
do not use in children <8, pregnant or nursing women 2ndary permanent tooth discoloration
Drug interactions: antacids, OCs, anticoagulants
Term
Hydroxychloroquine (Plaquenil)
Definition
often chosen as an initial treatment, esp patients w/ less active or milder disease
treatment w/Hydroxychloroquine (Plaquenil) alone does not slow disease progression, but early treatment still has an impact on long term patient outcome
Term
Hydroxychloroquine (Plaquenil)
MOA
Definition
Inhibits locomotion of neutrophils & chemotaxis of eosinophils:impairs complement-dependent antigen-antibody reactions
Term
Hydroxychloroquine (Plaquenil)
AE
Definition
Rash, diarrhea, abdominal cramps infrequently
increased risk of retinal toxicity if the dose exceeds 6gm/kg
Term
Hydroxychloroquine (Plaquenil)
notes
Definition
NO lab monitoring is necessary
periodic ophthalmic exams are necessary for early detection of reversible retinal toxicity
Term
Sulfasalazine (Azulfidine)
Definition
helps slow disease progression in patients w/RA & may work more quickly than hydroxychloroquine
Term
Sulfasalazine (Azulfidine)
MOA
Definition
a pro-drug cleaved by bacteria in colon to metabolites thought to have anti-RA activity, however the exact mechanism is unknown
Term
Sulfasalazine (Azulfidine)
AE
Definition
Nausea, abdominal discomfort
Mostly occur in the 1st few months, can lessen by starting w/low dose & increase dose gradually
Term
Sulfasalazine (Azulfidine)
Notes
Definition
periodic monitoring for Leukopenia is recommended; tell patients they may notice yellow/orange color of urine and/or skin
Term
Sulfasalazine (Azulfidine)
Notes
Definition
periodic monitoring for Leukopenia is recommended; tell patients they may notice yellow/orange color of urine and/or skin
Term
TNF-alpha Inhibitor
Biologic Agent
Definition
Term
corticosteoiods
Definition
anti-inflammatory & immunosuppressive effects
used in RA bridging therapy, continuous low-dose therapy, short-term high dose bursts control flares
Local steroid injections are also effective, but the effects are temporary
Term
corticosteroids
AE
Definition
HTN, hyperglycemia, cataracts, skin fragility, fluid retention, weight gain, osteoporosis
Term
corticosteroid & osteoporosis risk
Definition
a major concern w/the use of systemic steroids is the increased risk of developing osteoporosis
patients w/RA have an increased risk of osteoporosis that is independent of the risk due to steroids
recommend that patients taking steroids get 1,500 mg of elemental calcium per day (from diet & supplements) & 400-800 IU of Vit D per day
other options that should be considered are raloxifene (Evista) & antiresportive agents such as the biphosphonates (fosamax)
Term
Combo RA therapy
Definition
single DMARD is often inadequate to control symptoms or prevent disease progression
role of combo DMARD therapy continues to evolve
combo DMARD therapy can be used, consultation w/a rheumatologist is recommended
controversy remains about how to approach combo DMARD therapy
Term
conclusion of RA
Definition
to prevent joint damage, early accurate diagnosis is key
corticosteroid are effective, but it is important to take precautions to prevent significant AE that can occur w/long term use
NSAIDs aren't effective in slowing disease progression, so shouldn't be monotherapy
DMARDs do slow disease progression& should be started w/in 3 oaths of dx in most patients
Term
typical nonbiological DMARDs therapy
Definition
Methotrexate or leflunomide (all patients)
Minocyclince or hydroxychloroquine (mild disease)
Sulfasalazine (mild to moderate disease)
Term
typical biologic DMARDs treatment
Definition
Anti-TNF alpha agents:etanercept, infliximab, adalimumab, adalimumab, golimumab
T-cell inhibitor (abatacept)
B-cell inhibitor (rituximab)
Term
Osteoartthritis
Definition
most common joint disease
ranks 2nd to CV diseases as a cause of severe, chronic disability
Term
OA epidemiology
Definition
affects approximately 50% over 65 & almost 100% over 75
after 45 women are more commonly affected
Hip:women >men, Knee:women=men
Term
OA Etiology
Definition
multifactorial, including obesity, occupation, participation in sports, history of joint trauma, genetic predisposition
Term
Pathophysiology of OA
Definition
chondrocyte fails to maintain the balance between cartilage formation & destruction
leads to loss of cartilage in the joint, local inflammation, pathological changes in underlying bone, & further damage to cartilage triggered by affected bone
Term
OA clinical presentation & course
Definition
OA pain is worse w/use, relieved by rest
brief am stiffness & "gelling" of joints after rest are common
bony enlargement, crepitus on motion & limited joint motion can also develop
As OA progresses pain occurs w/minimal activity or at rest
Term
OA diagnosis
Definition
based on symptoms, physical exam, radiography
Term
OA treatment goals
Definition
educate the patient
relieve pain & stiffness
maintain or improve joint mobility
limit functional impairment
maintain or improve QOL
Term
OA nonpharm treatment
Definition
patine ed
strengthening & ROM exercises(PT)
use of assistive devices (OT)
joint protection
weight loss as necessary
surgery
Term
OA pharm therapy
Definition
use in conjunction w/non-pharm therapy
current meeds don't change the course of the disease, use for symptom management
Term
Acetaminophen for OA
Definition
1st line therapy for mild to moderate pain
up to 4gm.day, reduce dose by 50-75% for renal or hepatic failure or EToH abuse
Term
Acetaminophen for OA
advantages
Definition
effective for mild to moderate pain
low risk for AE
Term
Acetaminophen for OA
disadvantages
Definition
not effective for pain associated w/inflammation
use w/caution for patient w/hepatic dysfunction
Term
OA topical capsaicin
Definition
mild to moderate pain, no response to APAP & desire to avoid systems therapy or adjunct
capsaicin applied to symptomatic joint bid-qid
Term
OA topical capsaicin
advantages
Definition
avoids systemic side effects
Term
OA topical capsaicin
disadvantages
Definition
local irritation (burning sensation), delayed response (up to 2wks), non-adherence
Term
OA topical capsaicin
MOA & Note
Definition
releases & depletes substance P from afferent nociceptive nerve fibers
topical NSAIDs:ibuprofen (compounded); diclofenac gel solution, or patch recommended by AAOS for patients w/increased GI risk
Term
OA Glucosamine sulfate +/- Chondroitin
Definition
500 mg po tid (eval effect after 8-12 wks)
consider for symptom improvement before initiation of NSAIDs: mixed trial results, try 8-12 wks & DC if no improvement
Term
OA Glucosamine sulfate +/- Chondroitin
disadvantages
Definition
potential for allergic reaction in patients w/shellfish allergy, may cause GI upset & nausea
Term
OA nonselective NSAIDs
Definition
moderate to severe pain, no response to APAP
advantage-effective for moderate to severe pain
Term
OA nonselective NSAIDs
disadvantages
Definition
GI S/E, renal dysfunction
precautions:
Warfarin increase risk of bleeding (NSAIDs do NOT change INR)
Diuretics, ACE-I, ARB. decrease the effect
Lithium increases Li levels
INdomethacin: long term use in hip OA may be associated w/accelerated joint destruction in the setting, avoid!
Term
OA NONsalicylates
Definition
moderate to sever pain, no response to APAP, alternative to nonselcetive NSAIDs due to AE or drug interaction
500-750 mg bid, Choline magnesium trisalicylate 500-750 mg tid
Term
OA NONsalicylates
advantages
Definition
effective for moderate to severe pain
less risk of GI toxicity compared to NSAIDs
do not affect platelet aggregation
Term
OA NONsalicylates
disadvantages
Definition
potential for GI adverse effects, renal disfunction
use w/caution for patients w/renal failure, CHF, HTN
Term
OA COX 2 Inhibitor
Definition
moderate to severe pain, no response to APAP, AE or high risk of AE w/nonselective NSAIDs: consider patients w/high GI & low CV risk
Celecoxib 100 mg bid or 200 mg qd
Term
OA COX 2 inhibitor
advantages
Definition
effective for moderate to severe pain
less risk of GI toxicity compared to NSAIDs
do not affect the platelet aggregation
Term
OA COX 2 Inhibitor
disadvantages
Definition
potential for GI AE, renal dysfunction
use w/caution for patients w/renal failure, CHF, HTN
Celecoxib CI w/allergy to sulfa-containing products
possible increased risk of CV events, do NOT exceed 200 mg/day
drug interactions: Warfarin may increase INR, ACE-I, ARBS, diuretics, lithium
Term
OA tramadol
Definition
moderate to severe pain, no response, AE or CI to APAP, NSAIDs, & COX 2 I
50-100 mg q4-6hr (max 400 mg/day: >75yo 300mg/day)
Term
OA tramadol disadvantages
Definition
sedation, confusion, urinary incontinence, seizures
Adjust the dose to q12hrs for CrCl<30 ml/min (max 200 mg/day)
Term
OA Opioids
Definition
moderate to severe pain, no response, AE or CI to APAP, NSAIDs, COX2 I, & tramadol
Term
OA Opioids
disadvantages
Definition
constipation, seadtion, confusion
Propoxyphene NOT recommended due to lack of efficacy & potential for AE
Meperdine NOT recommended due to normeperidine accumulation in the elderly
Term
OA intraarticular Glucocorticoids
Definition
adjunctive therapy
various doses methylprednisolone 4-80 mg based on side of joint q1-5weeks
Term
OA intraarticular Glucocorticoids
advantages/disadvantages
Definition
ad-effective for knee OA
disad-not studied in hip OA
Term
OA intraarticular Hyaluronic acid
Definition
moderate to severe pain, no response, AE or CI to APAP, NSAIDs, & COX 2I, not a candidate for intraarticular glucosteroids or surgery
Hyalgan 20 mg intra-articualr qweek x 5, synivisc 16mg intra-articular qweek x 3, Supartz 25mg intra-articular qweek x 5
Term
OA intraarticular hyaluroinc acid
Advantages/disadvantages
Definition
ad- duration of relief may last up to 6months
disad- delayed onset of action, not approved for hip OA, some clinical trial results similar to placebo, use w/caution w/allergies to avian products, feathers, or egg products
Term
OA alternative therapy
Duloxetine (Cymbalta)
Definition
Consider if analgesics aren't sufficient & theres current depression
now indicated for chronic musculoskeletal pain 2ndary low back pain & OA
start 30 mg/day x 1week to decrease nausea, don't exceed 60 mg/day for pain (higher doses do not improve efficacy but increase S/E)
Term
OA summary
Definition
OA is most common joint disease
treatment should always include nonpharm
pharm therapy should be selected based on severity of joint pain & patient characteristics
Term
acetaminophen (APAP)
Definition
tylenol
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