What is Pharamcovigilance
Pharmacovigilance is the science of detecting, assessing, understanding, and preventing side effects or problems caused by medicines.
In simple words, PV means monitoring the safety of medicines after they are used by patients.
Definition
According to the World Health Organization (WHO):
Pharmacovigilance is the science and activities related to the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problems.
What is Adverse Drug Reaction (ADR)
An Adverse Drug Reaction (ADR) is a harmful or unwanted effect caused by a medicine.
Example:
| Medicine may cause | Side Effect |
|---|---|
| Antibiotic sometimes results in | Rash |
| Painkiller may cause | Stomach pain |
| Chemotherapy drug results in | Hair loss |
If doctors or patients report these reactions, PV teams analyse the data and check if the drug is safe.
What Pharmacovigilance Professionals Do
People working in PV usually:
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Collect adverse event reports
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Analyze drug safety data
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Write safety reports
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Submit reports to regulatory authorities
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Monitor drug risks
Example workflow:
Patient → Doctor reports side effect → PV team reviews → Report submitted to regulatory authority.
Pharmacovigilance helps to:
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Detect new side effects
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Improve drug safety
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Protect patients
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Support safe use of medicines
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Sometimes even remove dangerous drugs from the market
Example
A patient takes a medicine and experiences:
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Severe headache, Vomiting
The doctor reports this to the pharmacovigilance system.
PV experts analyse whether the medicine caused the reaction.
If many patients report the same issue, regulators like the
Food and Drug Administration (FDA) or
European Medicines Agency (EMA) may update the drug’s safety warning.
What a Pharmacovigilance Associate Does (Daily Work)
Receive adverse event reports
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From doctors
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Hospitals
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Patients
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Clinical trials
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Check the report
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Patient details
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Drug taken
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Reaction observed
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Enter data into safety databases
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Common system: Oracle Argus Safety
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Medical coding
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Using MedDRA terminology.
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Write case narrative
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Submit safety report to authorities
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Food and Drug Administration
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European Medicines Agency
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Basic concepts
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Adverse Event (AE)
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Adverse Drug Reaction (ADR)
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Serious vs Non-serious events
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Expected vs unexpected events Case processing
ICSR = Individual Case Safety Report
ICSR contains:
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Patient information
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Drug name
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Reaction details
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Outcome
Medical coding
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Using MedDRA to code symptoms.
PV Databases Used in Companies
You should know these names:
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Oracle Argus Safety
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ARISg Pharmacovigilance System
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Veeva Safety
Most companies train employees on these tools.
Next module we will learn about the case studies and real work scenarios how PV managed.
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