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Effect of methadone and morphine on serotonin uptake in rat periaqueductal gray slices
European Journal of Pharmacology
|October 26, 1979
Abstract:
In vitro effects of d,l-methadone and morphine on [3H]serotonin (3H-5-HT) uptake in rat periaqueductal gray (PAG) slices were investigated. Only methadone had a significant inhibitory effect on 3H-5-HT uptake which was significantly enhanced by naloxone. The systemic administration of methadone did not affect 3H-5-HT uptake in vitro. These data further weaken the possible relationship between narcotic analgesia and blockade of the 5-HT reuptake mechanism.