8 Questions
What is the primary effect of hypnotics on an individual?
Natural sleep after administration
What is the therapeutic use of barbiturates in epilepsy?
Anticonvulsant effect
What is the classification of thiopental based on its duration of action?
Ultra short acting
What is the therapeutic use of diazepam?
Anxiolytic
What is the characteristic of sedatives?
Causing tranquility and relaxation without causing sleep
What is the duration of action of phenobarbitone?
6-12 hours
What is the therapeutic use of pentobarbital?
Hypnotic in insomnia
What is the classification of CNS drugs?
CNS stimulants and CNS depressants
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
Quiz about central nervous system drugs, their classification, and effects. Covers CNS depressants, stimulants, and their uses in treating various conditions.
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