名词 over-the-counter drug:

1. a drug that is sold without a prescription

overprep.在 ... 的上方；遍及地；在 ... 期间adv.穿过；完全覆盖；结束；落下n.(板球中)每个投球手一次连续所投出的球数overreactv.反应过度

1. Coffee, tea, cola, cocoa, chocolate and some prescription and non-prescription drugs contain caffeine.
   咖啡，浓茶，可乐，可可饮料，巧克力和含咖啡因的处方药或者非处方药。
2. Classifying medicine to prescription drugs and nonprescription drugs is a precondition of the drug classification system.
   药品分为处方药与非处方药是实施药品分类管理的重要前提。