CNS Stimulants : Definition, Classification, Example, Mechanism of Action, Uses, Side Effects, Contraindications, & Interactions
- CNS Stimulants are drugs whose primary action is to stimulate the CNS globally or to improve specific brain functions.
- The CNS stimulants mostly produce a generalized action which may, at high doses, result in convulsions.
- As a group, the CNS stimulants have diverse clinical uses and are important as drugs of abuse, as are the CNS depressants.
1. Psychomotor Stimulants : Psychomotor stimulants have predominant cortical action; their psychic effects are more important than those on medullary vital centres. They cause excitement and euphoria, decrease feelings of fatigue, and increase motor activity.
- Pentylenetetrazol (PTZ)/ Metrazol/ Leptazol
3. Analeptics (Respiratory stimulants) : These are drugs which stimulate respiration and can have resuscitative value in coma or fainting. They do stimulate respiration in subconvulsive doses, but margin of safety is narrow; the patient may get convulsions while still in coma.
The role of analeptics in therapeutics is very limited.
For detailed query about Uses, Side Effects, Contraindications, Interactions of CNS stimulant drugs, refer to individual drugs.
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