drug interaction

例句：

1. 1.The drug interaction between the two drugs can affect their effectiveness.
   两种药物之间的药物相互作用会影响它们的有效性。
2. 2. The patient's condition worsened due to a drug interaction with his medication.
   患者的病情因与他的药物治疗发生药物相互作用而恶化。
3. 3. The study found that certain medications could interact with each other, leading to unexpected side effects.
   研究发现某些药物可能会相互干扰，导致意外的副作用。