Have you tried N acetyl cysteine (http://en.wikipedia.org/wiki/N-acetyl_cysteine
)? Its a very cheap antioxidant you can get in most health/wellness stores It is being used in some promising clinical studies on a variety of physical and mental disorders. Some evidence shows it cuts the addiction from nicotine, cocaine, and other stimulants. It also reduces the toxic damage from the cigarettes and a number of toxic substances. Its been studied for years in the laboratory, some ER physicians use it to treat tylenol overdose (in iv form). You can get 600mg, to 1g pill sizes for about $6-10 that should be about a months supply.
When I was quitting I found green tea to be very helpful. It contains theanine (http://en.wikipedia.org/wiki/Theanine
) which can also be very useful.
"Quitting smoking is easy. I've done it a thousand times." Mark Twain
Efficacy of N-acetylcysteine in the treatment of nicotine dependence: a double-blind placebo-controlled pilot study.http://www.ncbi.nlm.nih.gov/pubmed/21606648** "Interestingly, subjects receiving NAC rated the first cigarette after the abstinence period of 3.5 days as significantly less rewarding than subjects on placebo (p = 0.04, d = 0.85)."
Effects of oral administration of N-acetyl-L-cysteine: a multi-biomarker study in smokers.http://www.ncbi.nlm.nih.gov/pubmed/11867504
Antioxidant N-acetyl cysteine reverses cigarette smoke-induced myocardial infarction by inhibiting inflammation and oxidative stress in a rat model.http://www.ncbi.nlm.nih.gov/pubmed/21968809
Effects of N-acetylcysteine on Clara cells in rats with cigarette smoke exposure.http://www.ncbi.nlm.nih.gov/pubmed/20193479