True drug allergy is often preceded by prior exposure or sensitization to the same or to a similar substance.

药物过敏发生前常有同一物质或类似物质的接触或致敏。

youdao

True drug allergy is often preceded by prior exposure, or sensitization, to the same or to a similar substance.

药物过敏发生前常有同一物质或类似物质的接触或致敏。

youdao

The same is true for dozens of other crucial medicines, including the popular allergy medicine prednisone; metformin, for diabetes; and amlodipine, for high blood pressure.

其它一些很重要的药物也是如此，这包括流行的抗过敏药泼尼松、糖尿病药物二甲双胍和高血压用药氨氯地平。

youdao

While some daredevils may want to risk it and enjoy a juicy steak regardless of their alpha-gal allergy, the only true way to avoid an allergy attack is to avoid the food itself.

CNN: Ticks causing mysterious meat allergy