D. Anti-inflammatory Flashcards
anti-inflammatory drugs:
Pathophysiology
•Inflammation
- Reaction to tissue injury
- Caused by release of chemical mediators
- Leads to a vascular response
- Fluid and WBCs migrate to injured site
•Chemical mediators
- Histamines
- Kinins
- Prostaglandins
signs of inflammation
- erythema ( redness)
- edema (swelling)
- heat
- pain
- loss of function
cyclo-oxygenase (COX)
COX-1 platelets/GI protective effect
COX-2 Pain
anti-inflammatory
Ind/Contra
- Indications or Uses
- Reduce inflammation and pain
- Gout, inflammation, fever, platelet
inhibition, rheumatoid & osteoarthritis
- Not recommended for fever or headaches
- Except aspirin, ibuprofen
- Contraindications: allergy and pts at risk of
bleeding
•EX: low platelet ct
, peptic ulcer disease
1st generation NSAID
•Salicylates
•Aspirin*
•Propionic
acid derivatives
•Ibuprofen (Advil)*
•Naproxen (Naprosyn)
NSAID effects/action
Effects:
Anti-inflammatory,
Analgesic, Antipyretic*(Aspirin and Advil only),
Second generation NSAID
- COX-2 inhibitors
1. Celecoxib (Celebrex)
salicylates-lab-food interactions
•Drugs
- Anticoagulants (Coumadin & warfarin) Increases anticoagulation= bleed, bleed, bleed
- ↑ hypoglycemia with oral hypoglycemic drugs
- ↑ gastric ulcer risk with glucocorticoids
•Lab
- Increase PT, INR, bleeding time, uric acid
- Decrease potassium, cholesterol, T3 and T4 levels
- Foods containing salicylates
- Prunes, raisins, licorice, certain
spices
Salicylates -Aspirin
Caution
- Do not take with other NSAIDs
- Avoid during third trimester of pregnancy
- Do not give to children with flu or virus
symptoms–Reyes’ syndrome
Aspirin SE/AR
•Side effects/adverse reactions
•Tinnitus(ringing ears)
- Gastric distress (heartburn); Peptic ulcer
- Urticaria
- Life threatening: Agranulocytosis, hemolytic
anemia, Anaphylaxis, Thrombocytopenia, Hepatotoxicity, Bronchospasm, Renal Failure
salicytes severe reactions
- Hypersensitivity
- Tinnitus, dizziness, bronchospasm
- Salicylism (mild)
- Tinnitus, dizziness, headache, confusion, sweating, drowsy, thirst, nausea, vomiting, diarrhea
- Severe salicylate poisoning
- Convulsions, cardiovascular collapse, coma
nsaid ibuprofen &
Naproxen
- Ibuprofen
- Nonselective COX inhibitors (blocks both)
- Brand/trade names •Ibuprofen (Motrin, Advil)
•Drug interactions
•Increase effects of warfarin, phenytoin
•Side effects
•Gastric
distress
•Naproxen (Naprosyn)
COX-2 Inhibitors
action/use
•Action
•Selectively inhibits COX-2 enzyme without
inhibition of COX-1 (reduces GI distress)
•Use
- Decrease inflammation and pain
- Drug agents
- Celecoxib (Celebrex)
- Similar agents
- Nabumetone (Relafen), meloxicam (Mobic)
- Some COX-1 inhibition
COX-2 inhibitors
caution/SE
•Caution
•Avoid during third trimester of pregnancy
Side Effects
•Mild: headache, dizziness, nausea, diarrhea,
sinusitis, peripheral edema
•Assess renal function and GI
status (can cause kidney damage with long-term use)
NSAID Patient teaching
- Inform of Drug & Herbal interactions
- Avoid Alcohol
- Inform surgeon and dentist before procedures of
NSAID use
- Avoid NSAIDs 1-2 days prior to menstruation
- Do not take if pregnant
- Inform of SE
- Take with food to ↓ GI upset