Answer:
Acetaminophen is the drug in the brand "Tylenol". It is often combined with Codeine as "Tylenol #3", etc. Codeine is an ineffective pain-reliever according to the latest medical literature.
Acetaminophen is processed by the liver, so anything else you might take that is metabolized/processed/broken-down in the liver risks liver damage. That is why there are prescribed limits to the number and frequency of pain-pill doses you should take.
Nobody wants a Liver Transplant!
Alcohol - even that found in cough syrup - has been shown to increase the extent of liver stress/damage exponentially - when taken at or near the same time as acetaminophen.
So, avoid alcohol + acetaminophen and stick to the prescribed dosage of your pain pills. 8 or 10 a day is too many!
New approaches to pain-relief like "targeted-delivery" with topical pain-relief medications put the pain medicine directly on the painful area for fast-relief. Cochrane Reviews says 35 studies showed "Good" pain-relief is easy with topical pain-relief medication - even for back pain.
Best,
drdanbullock (orthopedics)