A flavonoid, gossypin, was evaluated for its analgesic action by using acetic acid-induced writhing in mice and was compared with morphine. Gossypin inhibited writhing in a dose-dependent manner. This action was antagonised by naloxone. The pA2 values for morphine-naloxone and gossypin-naloxone were almost identical suggesting a definite involvement of opiate receptors in the analgesic action of gossypin.
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| http://dx.doi.org/10.1016/0014-2999(84)90604-6 | DOI Listing |
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