NAC can help curb urge to smoke

Dear Dr. Roach: I’d like to have your thoughts on what value the NAC supplement may have for reducing cravings for marijuana or nicotine?

I’m 73 and have been smoking marijuana daily since I was 21. Now I’m quitting for health reasons. I’ve been taking 1,000 mg of NAC every morning, as I’ve read it helps with smoking cravings. I’m not going to smoke anymore, but I’m just wondering what your take is on this, as I’m thinking of sending it to my 38-year-old son who’s been addicted to vaping/ cigarettes since he was a young man. He has ADD, anxiety, and problems with breath capacity.

Can the NAC supplement help me with the urge to smoke?

M.M.

Answer: N-acetyl cysteine, a precursor to the amino acid cysteine, has several roles in medicine. It is safe and well-tolerated. There are data that show oral NAC (sold as a dietary supplement) may have a role in helping people overcome addictions to tobacco, with small trials showing a reduction in smoking and the relapse rate in people using NAC compared with placebo.

In people who want to reduce their cannabis use, most of the data on NAC has been on younger people (adolescents and young adults), but also show some benefit.

Since the supplement is inexpensive and highly safe, and since a thirdparty lab found that the brands of NAC sold at reputable stores are what they say they are, I say it might be helpful.

However, there are many other products that are proven safe and effective to help with quitting smoking, ranging from group tobacco cessation classes, to nicotine replacement therapy, to prescription medications like varenicline and bupropion — all of which have many years of proven clinical efficacy.

Finally, there are a lot of people with attention deficit/hyperactivity disorder who are not getting appropriate treatment as adults. Getting treatment by an expert in ADD might make quitting smoking easier and may also improve many other areas of functioning for your son.