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What are the side effects of suddenly stopping nicotine intake?

Depending on the number of cigarettes you smoked, how frequently, and how long you have been smoking, you may experience symptoms of nicotine withdrawal, including irritability, anger, frustration, sad mood, anxiety, decreased concentration, hunger, insomnia, restlessness, and a decrease in your heart rate.
Robert S. Kaufmann, MD
Internal Medicine

You will have  headaches, maybe your heart rate will be up a little bit, you may have some sweating, but those are the biggest things that you will see.  These symptoms are not universal but most people who stop suddenly will have some withdrawal symptoms.

Dr. Michael Roizen, MD
Internal Medicine
Side effects of suddenly stopping nicotine intake are that you want to smoke or get more nicotine.  The patch, lozenge are much better than cigarettes because the cigarette or smoking gives you an inflammatory response in your lungs and esophagus, which causes real problems towards cancer.  Nicotine in a pill or patch are much safer than all the other hydrocarbons that you get.  The other side effects, in addition to really craving one, are that you may get your taste back and you may want to eat more, so that is why you should exercise, do walking, and weightlifting when you quit, or before you quit and into the quitting phase.  Other side effects are that you may actually restore sexual pleasure and sexual function.  That we consider a good thing.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.