When smoked, tobacco delivers nicotine to your blood stream.
Some medications can interact with nicotine to cause a harmful effect.
The most obvious drugs are those that contain nicotine itself. These are medications that are used to help a person quit smoking. The purpose of these drugs is to ease the withdrawal symptoms and the craving for nicotine that occurs when we stop smoking. There are now 3 types of nicotine products that are available for people quitting smoking. The patch is placed on the body once a day.