Among the ingredients that have caused concern are anticough medicines including dextromethorphan, which is the DM in many preparations.

I leave you gentlemen now, and you will write it. You will interpret. That’s your right. But as I leave you I want you to know—just think how much you’re going to be missing. You won’t have Nixon to kick around anymore, because gentlemen, this is my last press conference, and it will be the one in which I have welcomed the opportunity to test wits with you. I have always respected you. I have sometimes disagreed with you. But unlike some people, I’ve never cancelled a subscription to a paper, and also I never will.

Their feet steady, their hands diligent, their eyes watchful, and their hearts resolute.

I've got billions and billions of rhymes to flex / 'Cause I've got more rhymes than Carl Sagan's got turtlenecks