Nsaid ppt

5,223 views 28 slides Mar 18, 2018
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About This Presentation

DRX MOHD ASAD FAROOQUI


Slide Content

Nonsteroidal Nonsteroidal
Antiinflammatory Drugs Antiinflammatory Drugs
(NSAIDs)(NSAIDs)
Under The Guidance Of – Presented By -Under The Guidance Of – Presented By -
Mr. Sudhakar Singh Mohd Asad FarooquiMr. Sudhakar Singh Mohd Asad Farooqui
(ASST.PROFESSOR ) B.Pharm 3(ASST.PROFESSOR ) B.Pharm 3
rdrd
year year
CHANDRA SHEKHAR SINGH COLLEGE OF PHARMACY CHANDRA SHEKHAR SINGH COLLEGE OF PHARMACY
ALLAHABADALLAHABAD

What are NSAIDs and how do they What are NSAIDs and how do they
work?work?
Drug with analgesic( without impairing Drug with analgesic( without impairing
consciousness ), antipyretic, and anti- consciousness ), antipyretic, and anti-
inflamammatory effectsinflamammatory effects
weak acids, PH 3-5, well absorbed weak acids, PH 3-5, well absorbed
from stomach and intestinal mucosafrom stomach and intestinal mucosa
protein-bound in plasma ( albumin),protein-bound in plasma ( albumin),
metabolised in the livermetabolised in the liver

ProstaglandinsProstaglandins
Prostaglandins : produced by the cells, Prostaglandins : produced by the cells,
promote inflammation, pain, and fever; blood promote inflammation, pain, and fever; blood
clotting function of platelets; protect the lining clotting function of platelets; protect the lining
of the stomach from damaging effects of acid.of the stomach from damaging effects of acid.
two COX enzymes, COX-1 and COX-2. two COX enzymes, COX-1 and COX-2.
produce prostaglandins that promote produce prostaglandins that promote
inflammation, pain, and fever inflammation, pain, and fever

What are NSAIDs and how do they What are NSAIDs and how do they
work work ??
NSAIDs block the COX enzymes , reduce NSAIDs block the COX enzymes , reduce
prostaglandins, inflammation, pain, and fever are prostaglandins, inflammation, pain, and fever are
reduced. reduced.
COX-1 produced prostaglandins that support platelets COX-1 produced prostaglandins that support platelets
and protect the stomach.and protect the stomach.
Reduced prostaglandins that protect the stomach and Reduced prostaglandins that protect the stomach and
support blood clotting, so NSAIDs can cause ulcers support blood clotting, so NSAIDs can cause ulcers
in the stomach and promote bleeding. in the stomach and promote bleeding.

For what conditions are NSAIDs For what conditions are NSAIDs
used?used?
Infalmmatory arthritis, Infalmmatory arthritis,
AS, psoriatic arthritis, AS, psoriatic arthritis,
ReterReter’’s syndromes syndrome
Acute goutAcute gout
Metastatic bone painMetastatic bone pain
Headache, migrainHeadache, migrain
Postoperative painPostoperative pain
Pyrexia ( fever)Pyrexia ( fever)
Renal colicRenal colic

For what conditions are NSAIDs For what conditions are NSAIDs
used?used?
AspirinAspirin (also an NSAID) : inhibit the clotting (also an NSAID) : inhibit the clotting
of blood( platelet aggregation ) ,prevent of blood( platelet aggregation ) ,prevent
strokes and cardiovascular attacksstrokes and cardiovascular attacks

Classification of NSAIDClassification of NSAID

Mode of action of NSAIDMode of action of NSAID

COXCOX
Cyclooxygenase (COX) is found bound to the
endoplasmatic reticulum. It exists in 3 isoforms:
• COX-1 (constitutive) acts in physiological
conditions.
• COX-2 (inducible) is induced in inflammatory
cells by pathological stimulus.
• COX-3 (in brain).

COX-2
inhibitors
• Selective (coxibs)
• Preferential
COX-3
inhibitors
•Antipyretic
analgesics
Nonselective
COX-1/COX-2
inhibitorsUnder
NSAIDs
COX inhibitOrs

MODE OF ACTION OF PARACETAMOL

Mode Of Action Of Aspirin

Prostaglandin synthesis-

SIDE EFFECTS SIDE EFFECTS

Side effects of NSAIDsSide effects of NSAIDs
GastrointestinalGastrointestinal
Direct irritation : acidic molecules Direct irritation : acidic molecules
Indirect irritation: inhibit COX-1, reduce Indirect irritation: inhibit COX-1, reduce
protective prostaglandinsprotective prostaglandins
nausea, vomiting, dyspepsia, gastric nausea, vomiting, dyspepsia, gastric
ulcer/bleeding, diarrheaulcer/bleeding, diarrhea
Duration of therapy, doseDuration of therapy, dose

Side effects of NSAIDsSide effects of NSAIDs
CardiovascularCardiovascular
80% increase risk with newer COX-2 and high 80% increase risk with newer COX-2 and high
dose traditional NSAIDdose traditional NSAID
Heart failure risk Heart failure risk

Side effects of NSAIDsSide effects of NSAIDs
RenalRenal
Decrease prostaglandinsDecrease prostaglandins→→ constriction of constriction of
afferent arteriole afferent arteriole →→ decreased renal perfusion decreased renal perfusion
→→alter renal functionalter renal function
: salt and fluid retension, hypertension: salt and fluid retension, hypertension
Caution: NSAID with ACE inhibitor, diureticCaution: NSAID with ACE inhibitor, diuretic
Rare: ARF, ATN, nephrotic syn.Rare: ARF, ATN, nephrotic syn.

Side effects of NSAIDsSide effects of NSAIDs
OthersOthers
Allergy: shortness of breath Allergy: shortness of breath
Asthma : a higher risk for serious allergic Asthma : a higher risk for serious allergic
reactionreaction
with a serious allergy to one NSAID are likely with a serious allergy to one NSAID are likely
to have similar reaction to a different NSAID to have similar reaction to a different NSAID
photosensitivityphotosensitivity

Combinational RiskCombinational Risk
If COX-2 inhibitor taken, should not use a If COX-2 inhibitor taken, should not use a
traditional NSAID concomitantlytraditional NSAID concomitantly
With daily aspirin therapy, should use other With daily aspirin therapy, should use other
NSAID carefully, they may block the NSAID carefully, they may block the
cardioprotective effect of aspirincardioprotective effect of aspirin

During pregnancyDuring pregnancy
Not recommended during pregnancy, Not recommended during pregnancy,
particular 3rd trimesterparticular 3rd trimester
Cause early closure of fetal ductus arteriosus, Cause early closure of fetal ductus arteriosus,
and fetal renal toxicity, premature birthand fetal renal toxicity, premature birth
Acetaminophen ia more safe during pregnancyAcetaminophen ia more safe during pregnancy
In France, NSAID and aspirin is contra-In France, NSAID and aspirin is contra-
indicated after 6 months of pregnancyindicated after 6 months of pregnancy

REFERENCEREFERENCE
https://www.google.com/https://www.google.com/
https://en.wikipedia.org/wiki/Arachidonic_acidhttps://en.wikipedia.org/wiki/Arachidonic_acid
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