Some here may not be aware that in Canada Tylenol #1 can be purchased from any pharmacy without a prescription. Some provinces require identification and make a note of it, but some require nothing except you asking the pharmacist for a bottle. A bottle of 100 costs roughly 5.00 - 6.00.
Totally agree that someone 'addicted' NEEDS to go somewhere inpatient or at the very least somewhere that they are monitored daily.
Tests for liver damage are also called for.
If you are taking it though for headaches say and you are not 'addicted' to it but are 'dependant' on it, it really is pretty easy to taper off of it with a good taper program. A daily 5% taper will be easy for the body to take and will not let the pain brighten considerably.
Look for a good taper program though - one where you are taking meds. on a schedule and you are decreasing at around 5% per day. This is totally different than detoxing. If you do a deotx you will have some awful withdrawal symptoms that will continue for a long time AND your pain levels from your h/a will make it very very hard on you.
A good taper program will be much much easier on your body and on you. It isn't advised if you are addicted because you will have T1's at home with you and most addicts would not be able to stay away from them. A chronic pain patient who was just looking for relief may find a taper program workable.
Look for a program that has you taking the meds. around the clock. If you now take 24 a day then day one would have you take 3 pills at a time every 3 hours. Day two, 3 pills at a time every 3 hours and 10 mins. (or so). Do that until you get to 3 pills every 6 hours and then cut to 2 pills every 4 hours, go again to 6 hours, reduce to one every 4 and repeat. The most important thing you have to do is to stay on the schedule. This stops your body from going into withdrawals. If you can't or won't commit to that then a taper probably isn't right for you.