title: Clinical studies of the effect of (+) and (-)-oxaprotiline upon noradrenaline uptake.
abstract: In six normal male subjects the mydriatic effect of tyramine eye drops was inhibited by 1 day's treatment with desipramine and the (+)- but not the (-)-enantiomer of oxaprotiline. In the same experiment, the secretion of melatonin was increased after treatment with (+)- but not with (-)-oxaprotiline. The effects of (+)-oxaprotiline and of desipramine treatment were similar, as were those of (-)-oxaprotiline and placebo. These findings extend to clinical studies the demonstration in animal experiments of stereo-specificity for the effects of (+)- and (-)-oxaprotiline upon noradrenaline uptake. A comparison of the effects of the two enantiomers should provide an ideal strategy for studying effects of noradrenaline uptake blockade in clinical studies.
mesh_terms: D000873:Anthracenes / Q000494:pharmacology*; D000928:Antidepressive Agents / Q000494:pharmacology*; D003891:Desipramine / Q000494:pharmacology; D006801:Humans; D008297:Male; D008376:Maprotiline / Q000031:analogs & derivatives / Q000494:pharmacology*; D008550:Melatonin / Q000378:metabolism; D009638:Norepinephrine / Q000378:metabolism*; D011680:Pupil / Q000187:drug effects; D013237:Stereoisomerism
chemical_list: D000873:Anthracenes; D000928:Antidepressive Agents; D008376:Maprotiline; C027299:hydroxymaprotilin; D008550:Melatonin; D003891:Desipramine; D009638:Norepinephrine