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Questions and Answers
What is the primary effect of hypnotics on an individual?
What is the primary effect of hypnotics on an individual?
- Natural sleep after administration (correct)
- Anxiety and inability to concentrate
- Tranquility and relaxation without causing sleep
- Induction of anesthesia
What is the therapeutic use of barbiturates in epilepsy?
What is the therapeutic use of barbiturates in epilepsy?
- Induction agent in anesthesia
- Anticonvulsant effect (correct)
- Muscle relaxant
- Sedative in anxiety
What is the classification of thiopental based on its duration of action?
What is the classification of thiopental based on its duration of action?
- Long acting
- Intermediate acting
- Ultra short acting (correct)
- Short acting
What is the therapeutic use of diazepam?
What is the therapeutic use of diazepam?
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What is the characteristic of sedatives?
What is the characteristic of sedatives?
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What is the duration of action of phenobarbitone?
What is the duration of action of phenobarbitone?
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What is the therapeutic use of pentobarbital?
What is the therapeutic use of pentobarbital?
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What is the classification of CNS drugs?
What is the classification of CNS drugs?
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Study Notes
CNS Drugs Classification
- CNS drugs are divided into two groups: CNS depressants and CNS stimulants
- CNS depressants are further divided into eight subgroups
CNS Depressants
- Sedatives & Hypnotics
- Analgesic & antipyretic
- Anti-Anxiety (Anxiolytic)
- Anaesthetics
- Antidepressant
- Antiepileptic
- Drugs used in Parkinson's disease
- Antipsychotics
Sedatives & Hypnotics
- Insomnia: characterized by inability to sleep, anxiety, and inability to concentrate
- Sedatives: drugs that cause tranquility, comfort, and relaxation without causing sleep
- Hypnotics: drugs that cause natural sleep
Barbiturates
- Therapeutic uses:
- Sedative in anxiety
- Hypnotic in insomnia
- Induction agent in anesthesia
- Anti-convulsant in epilepsy
- Classification of Barbiturates:
- Ultra short acting (5-10 minutes): used before general anesthesia (e.g., thiopental)
- Short acting (2-4 hours): (e.g., secobarbital)
- Intermediate acting (4-6 hours): (e.g., pentobarbital)
- Long acting (6-12 hours): (e.g., phenobarbitone)
Non-Barbiturates
- Benzodiazepines:
- Therapeutic uses:
- Hypnotic sedative
- Anxiolytic
- Anti-convulsant
- Used in irritable bowel syndrome
- Muscle relaxant
- Therapeutic uses:
- Examples of non-barbiturates:
- Emazepam
- Diazepam
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