none.

buckley's cough syrup does work. really good. I thought I would try the pills because its really gross. unforntley the pills do not work. witch sucks because now if I want to use it. I have to use the liquid.

I tried Buckley twice in my life and will never use it again. Very strong smell and it tastes just like it smells. This couch syrup literally took my breath away that I was gasping for air which was not a pleasant feeling. I experienced this feeling twice and that was enough for me. By the way it did not aid with my couch. I have found other couch medicines on the market that work way better.