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. 1975 Jan;53(1):121–125. doi: 10.1111/j.1476-5381.1975.tb07338.x

Inhibition of 5-hydroxytryptamine-induced human blood platelet aggregation by chlorpromazine and its metabolites.

D J Boullin, D G Grahame-Smith, R P Grimes, H F Woods
PMCID: PMC1666266  PMID: 1125484

Abstract

1 Blood platelets from normal human subjects were isolated and aggregated in vitro with adenosine diphosphate (ADP) or 5-hydroxytryptamine (5-HT). 2 The effects of chlorpromazine and 7 major metabolites upon 5-HT-induced aggregation were investigated. 3 All the phenothiazines inhibited 5-HT-induced aggregation when added to platelet rich plasma 3 min prior to 5-HT. 4 There were no qualitative differences in the inhibitory effects, but inhibitory potency varied over a wide range. The decreasing order of potency was monodesmethylchlorpromazine, chlorpromazine, 7-hydroxychlorpromazine, didesmethylchlorpromazine, 3,7 -dimethoxy-chlorpromazine, didesmethylchlorpromazine sulphoxide, chlorpromazine sulphoxide, chlorpromazine nitroxide.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Ahtee L. 5-Hydroxytryptamine release from blood platelets and haemolysis of red blood cells of rabbit induced by phenothiazines and related compounds. Ann Med Exp Biol Fenn. 1966;44(3):431–452. [PubMed] [Google Scholar]
  2. Ahtee L., Mattila M. J., Vapaatalo H. I. The binding of some phenothiazines to human serum in vitro. Biochem Pharmacol. 1967 Dec;16(12):2432–2435. doi: 10.1016/0006-2952(67)90229-8. [DOI] [PubMed] [Google Scholar]
  3. Ahtee L., Paasonen M. K. Distribution of some phenothiazines in red blood cells and platelets. J Pharm Pharmacol. 1966 Feb;18(2):126–128. doi: 10.1111/j.2042-7158.1966.tb07834.x. [DOI] [PubMed] [Google Scholar]
  4. Ahtee L., Paasonen M. K. The haemolytic effect of some phenothiazine derivatives. Ann Med Exp Biol Fenn. 1965;43(2):101–105. [PubMed] [Google Scholar]
  5. Ahtee L. Surface activity of phenothiazines and related compounds. Ann Med Exp Biol Fenn. 1966;44(3):453–457. [PubMed] [Google Scholar]
  6. BARTHOLINI G., PLETSCHER A., GEY K. F. Diminution of 5-hydroxytryptamine in thrombocytes in vitro by chlorpromazine and related compounds. Experientia. 1961 Dec 15;17:541–542. doi: 10.1007/BF02156407. [DOI] [PubMed] [Google Scholar]
  7. Baumgartner H. R., Born G. V. Effects of 5-hydroxytryptamine on platelet aggregation. Nature. 1968 Apr 13;218(5137):137–141. doi: 10.1038/218137a0. [DOI] [PubMed] [Google Scholar]
  8. Boullin D. J., Green A. R., Price K. S. The mechanism of adenosine diphosphate induced platelet aggregation: binding to platelet receptors and inhibition of binding and aggregation by prostaglandin E 1 . J Physiol. 1972 Mar;221(2):415–426. doi: 10.1113/jphysiol.1972.sp009758. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Curry S. H. Chlorpromazine: concentrations in plasma, excretion in urine and duration of effect. Proc R Soc Med. 1971 Mar;64(3):285–289. doi: 10.1177/003591577106400323. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Curry S. H., Lader M. H., Mould G. P., Sakalis G. Proceedings: Clinical pharmacology of chlorpromazine. Br J Pharmacol. 1972 Feb;44(2):370P–371P. [PMC free article] [PubMed] [Google Scholar]
  11. Manian A. A., Efron D. H., Goldberg M. E. A comparative pharmacological study of a series of monohydroxylated and methoxylated chlorpromazine derivatives. Life Sci. 1965 Dec;4(24):2425–2438. doi: 10.1016/0024-3205(65)90298-5. [DOI] [PubMed] [Google Scholar]
  12. Miller R. J., Iversen L. L. Effect of chlorpromazine and some of its metabolites on the dopamine-sensitive adenylate cyclase of rat brain striatum. J Pharm Pharmacol. 1974 Feb;26(2):142–144. doi: 10.1111/j.2042-7158.1974.tb09243.x. [DOI] [PubMed] [Google Scholar]
  13. O'BRIEN J. R. A COMPARISON OF PLATELET AGGREGATION PRODUCED BY SEVEN COMPOUNDS AND A COMPARISON OF THEIR INHIBITORS. J Clin Pathol. 1964 May;17:275–281. doi: 10.1136/jcp.17.3.275. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. POSNER H. S., HEARST E., TAYLOR W. L., COSMIDES G. J. Model metabolites of chlorpromazine and promazine: relative activities in some pharmacological and behavioral tests. J Pharmacol Exp Ther. 1962 Jul;137:84–90. [PubMed] [Google Scholar]
  15. Sakalis G., Chan T. L., Gershon S., Park S. The possible role of metabolites in therapeutic response to chlorpromazine treatment. Psychopharmacologia. 1973 Sep 28;32(3):279–284. doi: 10.1007/BF00422150. [DOI] [PubMed] [Google Scholar]
  16. Solatunituri E., Ahtee L. Subcellular distribution of some phenothiazines in blood platelets of rabbit. J Pharm Pharmacol. 1968 Apr;20(4):289–292. doi: 10.1111/j.2042-7158.1968.tb09740.x. [DOI] [PubMed] [Google Scholar]
  17. Telkkä A., Nyholm M., Paasonen M. K. Effect of chlorpromazine and reserpine on the blood platelets of rabbit. An electron microscope study. Experientia. 1964 Jan 15;20(1):27–28. doi: 10.1007/BF02146024. [DOI] [PubMed] [Google Scholar]
  18. Usdin E. The assay of chlorpromazine and metabolites in blood, urine, and other tissues. CRC Crit Rev Clin Lab Sci. 1971 Sep;2(3):347–391. doi: 10.3109/10408367109151312. [DOI] [PubMed] [Google Scholar]
  19. Vapaatalo H. I., Ahtee L., Paasonen M. K. Release of adrenaline and noradrenaline by some phenothiazines from the bovine adrenal gland. Ann Med Exp Biol Fenn. 1966;44(3):464–468. [PubMed] [Google Scholar]

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