| BOOK REVIEW |
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| Year : 1979 | Volume
: 11
| Issue : 4 | Page : 307 |
B.N.Ghosh s Text Book of Pharmacology and Therapeutics
SS Bhattacharya
Correspondence Address:
S S Bhattacharya
 Source of Support: None, Conflict of Interest: None  | Check |
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Pretreatment with L-histidine, precursor of histamine, was found to potentiate haloperido1 induced catalepsy and to antagonise methamphetamine stereotypy while pretreatment with chlorcyclizine, a H1-receptor blocker, was found to antagonise haloperidol catalepsy and to potentiate methamphetamine stereotypy: Further, chlorcyclizine was found to antagonise the potentiating effect of L-histidine on haloparidol catalepsy and also the inhibitory effect of L histidine on methamphetamine stereotypy. Our results indicate that the central histaminergic system by exerting a modulatory influence on the striatal dopaminergic system may influence the functioning of the extrapyramidal motor system.
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