Phenethanolamine derivatives in the (?)-erythro form of the formula: < IMG > wherein X represents a halogen atom, are new compounds useful in therapy, particularly for the treatment of vigilance disorders, behavioural disorders attributal to cerebral vascular damage and cerebral sclerosis in geriatrics, as well as for treatment of absences due to cranial traumatisms, metabolic encephalopathies and depressive states.
PHENETHANOLAMINE DERIVATIVES