Pain part 1 and part 2 Flashcards
What systems affect by NSAIDS?
GI, Renal, CV
Cox 2 inhibition effect?
Anti-inflammatory
analgesic
Cox-1 and Cox-2 inhibition effects?
antipyretic
anelgesic
When does Cox-2 is induced?
during injury or surgery
List the generic name for NSAID?
Asprin, Ibuprofen, Naproxen, Indomethacin, Diclofenac, Celecoxib, Meloxicam
Aspirin indications
analgesia, antipyretic, anti-inflammatory, antithrombotic
Aspirin MOA
irreversibly inhibits Cox-1 and Cox-2,
decrease formation of prostaglandin precursors (thromboxane A2= decrease platelet aggregation)
At low dose aspirin is….
selective for Cox-1= cardio protection
What do you do get anti-inflammatory and analgesia effects when taking asprin?
increase dosage
Aspirin AE
GI (N/V(nausua or vomiting), dyspepsia, ulcers, bleeding), bleeding/bruising; rare- skin rash, photosensitivity, bronchospasm
When should you avoid Aspirin
history of GI bleed , adolescents with recent flu/viral illness (Reye’s syndrome)
NSAIDs indications
analgesia, antipyretic, anti-inflammatory
NSAIDs MOA
reversibly inhibits COX-1 and Cox-2 enzymes
Which drug is Cox-2 selective
Celecoxib
NSAIDs AE
GI (N/V, dyspepsia, ulcers, bleed), ↑ BP, nephrotoxicity, CV risk (variable)
Who should be careful when taking NSAIDs
history or GI bleeds, elderly, poor kidney function
Negative GI effects with Cox-1 inhibition
peptic ulcers
Negative Renal effects with Cox-1 and Cox-2 inhibition
Na and water retention
hypertension
acute kidney injury
Negative CV effects with Cox-1 and Cox-2 inhibition
if Cox-2>Cox-1 inhibition then it increases stroke and MI
How do you manage renal risk when taking NSAIDs/pain meds
monitor DDI, hydrate
How do you manage CV risk when taking NSAIDs/pain meds?
avoid celcoxib: naproxen (Aleve) generally consider safest
How do you manage GI risk when taking NSIDs?
celecoxib or ibuprofen is best; moderate risk may combine with PPI(protein pump inhibitors), or H2 blocker
other factors to reduce risk when taking NSAIDs
If very high risk – avoid NSAIDs if possible
Use topical if possible
Always lowest dose for shortest duration
Acetaminophen indications
analgesia, antipyretic, combo with NSAID to reduce NSAID dose and potential AE