3. ADVERSE DRUG REACTIONS
Adverse Drug Reactions (ADRS) are the detrimental
or seriously unwanted effects of drug which results
at therapeutic, prophylactic or diagnostic dose level.
ADR results to call for decreased in the dose or
withdrawal of the drug from future use.
The incidences of ADRs are due to availability of
many potent drugs.
As per WHO, adverse drug reactions are defined as
any noxious and unwanted effect of drug that occurs
at doses given to human being for prophylaxis,
diagnosis or treatment.
4. CLASIFICATION OF ADVERSE DRUG
REACTIONS
1) Predictable or Type 1 or Non-immunologic Reactions
Excessive pharmacological effect.
Side effects.
Toxic effects.
Secondary pharmacological effect.
Rebound response after discontinuation
2) Unpredictable or Type B or Immunologic Reactions
(a) Idiosyncrasy or Pharmacogenetics
(b) Genetically Determined Toxicity
(c) Allergic Drug Reaction (Hypersensitivity Reaction):
(d) Super sensitivity
(e) Photosensitivity
(f) Intolerance
5. Management of Adverse Reactions of
Drugs
Management of ADR
Evaluate the nature
of event
1)Obtain
history of
patient
2)Classiy ADR
sevierity
3)Identyfy
&document the
clinical
reaction
4)Report ADr
Established the
cause
Corrective and
follow up action
1)Rapid action
2)Emergency
withdrawal of
medication
3)If dose
related ADR
then decrese
the dose
4)Observe the
patient after
withdrawal of
drug,if paitient
suffering from
withdrawal
symptomps
then substitute
drugs should
be given to
that patient or
giving same
drug but very
low
concentration
5)Do not treat
longer than is
necessary
6) Review
patient
6. Reference
PHARMACY PRACTICE By Dr. SACHIN
V.TEMBHURNE Dr. ASHWINI R.
MADGULKAR Dr.VIRENDRA S. LIGADE
NIRAL PRAKASHAN page no 3.17-3.19