Student or Learner
I edit it to be:
The era that one drug is used against one disease is over.
Your opinion will be appreciated.
The era of "one drug for one disease" is over is fine
Hmm, that makes me wonder when it began. I doubt there was ever such an era.
"one drug for one disease" and found a lot of articles mentioning it, including a couple, from pharmaceutical compamies, presenting this as an aim.