I don't know the amount of each drug. That said, if they were separated, I'd take 25mg to max. 50mg of promethazine with 125mg to max. 300mg of codeine, depending on your tolerance.
its a cough medicine bottle i think and it doesnt tell me the ratios or anything but i think for every 5ml its equal to 10mg of codeine, and btw its all in 1 bottle if you didnt know