Abstract
PREVIOUS investigations have shown that pretreatment with barbiturates reduces the prothrombin response to coumarin anticoagulants, presumably by stimulating the metabolic breakdown of the coumarin drugs1. Hrdina, who was interested in the effect of centrally active drugs on the response to anticoagulants, confirmed this effect of barbiturates2. On the other hand, compounds of the morphine type were found to enhance the response to coumarins (Hrdina, personal communication), and to inhibit enzymes which metabolize drugs in the liver3. The present experiments were designed to determine whether tranquillizers or antidepressants exert an effect on the coumarin response which might correlate with the nature of their central effects.
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References
Dayton, P. G., Tarcan, Y., Chenkin, T., and Weiner, M., J. Clin. Invest., 40, 1797 (1961).
Hrdina, P., and Doualcik, V., Bratislavske Lekarske Listy, 2, 697 (1961).
Axelrod, J., Science, 124, 263 (1956).
Chenkin, T., Dayton, P. G., Weisberg, L. G., and Weiner, M., Exp. Med. Surg., 17, 219 (1959).
Greengard, P., and Quinn, G. P., Ann. N.Y. Acad. Sci., 96, 179 (1962).
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WEINER, M. Effect of Centrally Active Drugs on the Action of Coumarin Anticoagulants. Nature 212, 1599–1600 (1966). https://doi.org/10.1038/2121599a0
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DOI: https://doi.org/10.1038/2121599a0
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