老年糖尿病患者代谢率低,用药容易发生低血糖,尤其是服用一些长效磺脲类降糖药如优降糖时,易发生晚间低血糖。因此,对这些药,即使要用,也应避免1日3次用药:小剂量时可早晨一次服;中剂量时则早晨服2/3,中午服1/3,晚间不用。老年人因为神经反应等比较迟缓,更易发生“未察觉的低血 Elderly diabetic patients with low metabolic rate, prone to hypoglycemia medication, especially taking some long-acting sulfonylureas such as hypoglycemic agents, prone to evening hypoglycemia. Therefore, the use of these drugs, should be avoided even if 3 times a day medication: small doses can be a morning service; medium dose when the morning service 2/3, noon serving 1/3, night without. Older people are more likely to have "unobtrusive hypoglycemia because they are slow to respond to their nerves