What the?

And before I go to bed before these vicodin pills really do me in. Some other pills my doctor gave me today left me wondering if I should really take them or not. He said: "The only side effect of these pills is coughing. If you start coughing stop taking them immediately."

Huh? What the? Why do they make you cough? What are they doing to me to make me cough? Why the stop taking them immediately if they make me cough?

Me thinks I don't want to take these pills.

cough..cough..