Anti Inflammatory Drugs: NSAIDS & Acetaminophen (75) Flashcards
Tissue injury causes the relapse of (5)
-prostaglandins
-bradykinin
-histamine
-leukotriennes
-serotonin
Most importantly tissue injury causes release of…
Prostaglandins
What are signs of inflammation
-vasodilation
-increased vascular permeability
-chemotaxis
-pain
A stimulus like damage causes release of phospholipase A2 which interacts with ____ to create ___
Interacts with PHODPHOLIPIDS to create ARACHIDONIC ACID
ARACHIDONIC acid is metabolized by _____ to create PGH2 or different variations
Cyclooxygenase
What are the two versions of cyclooxygenase
COX-1 and COX-2
PG stands for
Prostaglandin
What does COX-1 do
Physiological functions
-GI, renal, platelet function, blood vessels
What does COX-2 do
Inflammation
Which of the COX is inhibition undesirable?
COX-1 since it is related to regular physiological functions
NSAIDS stands for
Non steroidal anti inflammation drugs
Where do NSAIDS work in the action of creating prostaglandins?
NSAIDS stop the metabolism of ARACHIDONIC acid, by competition inhibition of COX
Is the inhibition of COX reversible or permanent?
Reversible
NSAIDS can block
Either one or both COX
What are the properties of NSAIDS groups
-analgesic
-anti inflammatory
-antipyretic
Indications of NSAIDs
-relief of mild to moderate pain
-fever
-gout, RA, osteoarthritis
Non selective NSAIDs target
Inhibitbition of both COX 1 and 2
Non selective NSAIDs are used for
-alleviating mild to moderate pain
-inflammatory disorders
The downside of non selective NSAIDs are
That they suppress inflammation but pose risks of serious harm
Examples of non selective NSAIDs
-acetylsalicylic acid (ASA or ASPRIN)
-ibuprofen (Advil)
-naproxen (Aleve)
NSAIDs can be used in
Combination
-codeine, caffeine
Acetylsalicylic acid is the
Standard NSAID agains which all others are compared
Acetylsalicylic acid is created from
Salicylic acid- Willow bark, and other plants ‘
Acetyl- added on in that era to create a drug
Where does the name ASPRIN come from
Acetalation spiraea
Acetylsalicylic acid properties
-anti inflammatory
-analgesic
-antipyretic
-antiplatelet
Antiplatelet properties of Acetylsalicylic acid
A special property of Acetylsalicylic acid
-COX will be inhibited for the life time of the platelet (eight days)
Positives of Acetylsalicylic acid being an antiplatelet
Heart attack
-prolonged use can reduce the risk of heart attack
Acetylsalicylic acid is different to other NSAIDs because it
Irreversibly inhibits COX
Daily dose for prophylactic use of Acetylsalicylic acid
80 to 160mg
Contraindications and cautions Acetylsalicylic acid
-pregnancy
-bleeding disorders
-operations
-renal dysfunction
-gastrointestinal
Contraindications and cautions Acetylsalicylic acid: pregnancy
In late trimester connected with low weight, intracranial bleed, and even death
Contraindications and cautions Acetylsalicylic acid: bleeding disorders
Hemophilia, as it is an ntiplatelet
Contraindications and cautions Acetylsalicylic acid: operations
Discontinue one week before operations (antiplatelet)
Contraindications and cautions Acetylsalicylic acid: renal
Renal dysfunction
-relies on PG in kidney dysfunction
-can exacerbate function