According to a 2004 article in New Scientist, theobromine maybe a stronger cough suppressant than codeine.
Theobromine is an alkaloid primarily found in dark chocolate.
Edit: The article did not actually say it was better than Codeine. I read that somewhere else–I forget where.
Edit 2: Anyone in the Estacado Systems office this week would tell you I was in need of such. I tried some–and it worked for a while, anyway. (Thanks, Brian!)
copied here in case it goes away:
Dead and wandering chickens closed all of westbound Interstate 30 just before First Avenue on Tuesday afternoon.
A tractor-trailer hauling chickens and crates overturned about noon, Dallas police Senior Cpl. Jamie Matthews said. Some chickens died from the wreck, while others wandered about.
Cpl. Matthews estimated about 2 p.m. that the mess could be cleaned up before the late-afternoon rush hour.
The driver of the tractor-trailer was not seriously injured. No other vehicles were involved, and investigators were trying to determine how the truck overturned.
Police did not know why the chickens crossed the interstate.
Irish camels have quite the party instinct.