yǐjīng chī guò shénme yào yào rúshí gàosu yīshēng hái méi chī de yào búyào zìjǐ luàn shì

已经吃过什么药，要如实告诉医生；还没吃的药，不要自己乱试。

Tell the doctor truthfully what medicine you have already taken, and do not try untried medicines on your own.