It may be better to slowly come off the Caffiene drink by having a Caffiene free version. You could try having a Caffiene Cola first, the next one Caffiene Free, the next with Caffiene and so on. This should reduce your Caffiene intake considerably.

Once the Caffiene level comes down, the cold turkey will be easier to manage when you do finally stop.

The other thing is that the other ingredients like Aspartame is not very good for your mental state, if taken in large quantities. The major soft drink companies are working hard to remove Aspartame from their drinks, but it will take time.

Aspartame dissolves into solution and can therefore travel throughout the body and deposit within any tissue. The body digests Aspartame unlike Saccharin, which does not break down within us.

Aspartame changes the ratio of amino acids in the blood, blocking or lowering the levels of serotonin, tyrosine, dopamine, norepinephrine, and adrenaline. Therefore, it is typical that Aspartame symptoms cannot be detected in lab tests and on x-rays.

The 1976 Groliers encyclopedia states cancer cannot live without phenylalanine. Aspartame contains 50% phenylalanine. Phenylalanine is one of the essential amino acids found in proteins.

Get off the stuff A.S.A.P, and you will find yourself feeling a lot better quite quickly.