there was a question ask by some-one on the inter-net he said he wanted to know-- if he is taking he wanted to know how many 40mgs.. of methadone wafers would he have to take to equal the10/10mgs. of the hydrocodine and a lady answered him by saying he needed to do a cold water wash to get the apap--(tylenol) out cause that was too much tylenol. i want to know what and how do you do a cold water wash?thank you very much.