SummaryTo restore impaired carbohydrate metabolism, sympathicomimetic amines may be used in view of two purposes : either to raise glycemia or to oppose circulatory collapse.To avoid, in case of hypoglycemic coma the administration of substance unnecessarily hypertensive and in case of diabetic coma the administration of drugs dangerously increasing glycemia, we studied the effect of 17 sympathicomimetic amines on the glycemia of man in correlation with arterial pressure.Among these substances, we found two, the hypertensive and hyperglycemic properties of which are definitely dissociated, namely :Stryphnon, which increases glycemia without being hypertensive, and is therefore appropriate in hypoglycemic coma ;Veritol, frequently lowering glycemia ; owing to its reliable effect on blood pressure, valuable as efficaciously opposing collapse in diabetic coma.