📌 Introduction
Antiepileptic drugs (AEDs) are used to treat epilepsy (seizure disorders). These drugs help control abnormal electrical activity in the brain.
This topic is very important for GPAT, DSSSB, and other pharmacy exams.
🔍 What is Epilepsy?
Epilepsy is a neurological disorder characterized by recurrent seizures due to excessive neuronal activity in the brain.
Symptoms:
• Convulsions
• Loss of consciousness
• Muscle jerks
📝 Classification of Antiepileptic Drugs
• Sodium channel blockers
Examples: Phenytoin, Carbamazepine
• GABA enhancers
Examples: Diazepam, Valproate
• Calcium channel blockers
Examples: Ethosuximide
• Newer drugs
Examples: Levetiracetam
🧬 Mechanism of Action
• Reduce neuronal excitability
• Enhance inhibitory neurotransmitter (GABA)
• Block sodium/calcium channels
• Prevent spread of seizure activity
🩺 Pharmacological Effects
• Control seizures
• Stabilize neuronal activity
• Prevent recurrence
💊 Therapeutic Uses
Used in:
• Epilepsy
• Status epilepticus
• Bipolar disorder (Valproate)
🚨 Side Effects
• Drowsiness
• Dizziness
• Ataxia
• Gingival hyperplasia (Phenytoin)
📑 Important Exam Points
• Phenytoin → sodium channel blocker
• Valproate → broad-spectrum AED
• Ethosuximide → absence seizures
• Diazepam → emergency seizures
🛑 Precautions
• Do not stop suddenly
• Monitor drug levels
• Avoid in pregnancy (some AEDs)
🎯 Conclusion
Antiepileptic drugs are essential for managing seizures. Understanding classification and mechanism is crucial for exams.
👉 Practice MCQs in evening post
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