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硝酸酯类药防治心绞痛疗效确切。但是,当连续使用硝酸酯类药物48~72小时,患者对同一剂量的硝酸酯其临床效应会下降或消失,或伴有运动耐量的下降,这就是所谓的硝酸酯耐药现象。医学上称为“零点现
Nitrate prevention and treatment of angina pectoris exact effect. However, when nitrates are continuously administered for 48 to 72 hours, their clinical effect on the same dose of nitrates decreases or disappears, or their exercise tolerance decreases. This is known as nitrate resistance. Medically known as ”zero is now