I t gets The Other two ingredients into the blood stream quicker.
Concentration
I'm not sure how to answer this in any simpler terms than are used in the question. They're pills that contain both acetaminophen (which you may know as paracetamol instead) and codeine.
Paracetamol can come with or without caffeine in it. Sometimes it can contain codeine. I believe over the counter paracetamol comes without caffeine.
Caffeine
you can't
Codeine is composed of codeine. Obviously codeine pills will contain binders and filler. Sometimes pills containing codeine may contain Paracetamol or Ibuprofen. These are not directly related to Codeine but increase its ability to reduce pain when taken in combination.
Tylenol 3 contains acetaminophen, codeine, and caffeine. The caffeine component can act as a stimulant, potentially helping to keep some individuals awake or alert. However, the sedative effects of codeine may counteract this for some people. Overall, the impact on alertness can vary depending on individual sensitivity to caffeine and opioids.
you can get them in superdrug for about £1.99
no
no it is a barbiturate and contains caffeine, acetaminophen, and butabital. There is also a kind that contains codeine. Personally I like the ones without codeine better.
Vicoprofen, roxicodone, ibuprofen, morphine. There are a few.