抗结石剂

例句：

1. 1.The patient was given an anti-calculus agent to help with his kidney stones.
   患者被给予一种抗结石剂以帮助他治疗肾结石。
2. 2. The doctor prescribed the patient an anti-calculus drug to reduce the size of his stones.
   医生给患者开了一种抗结石药物，以减小他的结石大小。
3. 3. The treatment for kidney stones often involves taking an anti-calculus agent orally.
   治疗肾结石通常需要口服抗结石剂。