Dont't need a plan, just make ads for prescription drugs illegal. Like it is in most countries. But I guess you need a plan to get congress to change the laws and I can imagine the bribery before the vote. So i guess, before that you need to make taking bribes illegal and how would you get congress to accept that. I giess you first have to lock away all corrupt politicians and then have a new election and then change the laws.

I don't envy Trump. Hell of a job cleaning up all the corruption.