Nicotine Dependence

Nicotine dependence is a powerful addiction that affects millions of people worldwide, making it extremely difficult to stop using tobacco products even when people know the serious health risks.

Table of contents

• What is nicotine dependence?
• How common is nicotine dependence?
• How nicotine addiction works
• Signs and symptoms
• Nicotine withdrawal symptoms
• Health risks of tobacco use
• Who does nicotine dependence affect?
• Treatment options
• Medications for quitting
• Counseling and support
• Success rates and challenges
• Tips for managing cravings and triggers

What is nicotine dependence?

Nicotine dependence happens when your body craves nicotine and you cannot stop using it. Nicotine is a chemical found in tobacco products that is highly addictive. When you use tobacco, nicotine travels quickly to your brain and triggers the release of dopamine, a chemical that makes you feel pleasure and satisfaction^[2].

Nicotine dependence involves both physical and psychological components. Physical dependence means your body needs nicotine to avoid uncomfortable withdrawal symptoms like restlessness and agitation. Psychological dependence means you feel like you need nicotine to get through your day because it has become part of your routine^[2].

The chemical brings on pleasant feelings, but these effects are short-lived, lasting only a few minutes. So you reach for another cigarette, cigar, or other tobacco product. The more you use tobacco, the more nicotine you need to feel good^[1][2].

How common is nicotine dependence?

Nicotine dependence is very common. In the United States, about 45 million Americans smoke tobacco, and approximately 23.6 million people, or 8.5% of people ages 12 and older, have nicotine dependence^[2][4].

Currently, about 19% of American adults smoke cigarettes. Seventy percent of smokers say they would like to quit, and every year, 40% do quit for at least one day. However, the 80% who attempt to quit on their own return to smoking within a month, and each year, only 3% of smokers quit successfully^[4].

How nicotine addiction works

Nicotine is as addictive as cocaine, heroin, and alcohol. Some experts even say it may be more addictive than these substances. Using nicotine just one time puts you at risk of becoming dependent on the drug because of its immediate effect on your brain^[2][5].

When you smoke or use tobacco products, nicotine is quickly absorbed into your bloodstream. It travels to your brain within minutes of your first puff and causes your brain to release dopamine and other feel-good chemicals. This creates temporary feelings of happiness and satisfaction^[2][5].

Over time, if you smoke, your brain makes more receptors that respond to nicotine. Think of nicotine as a key and receptors as little locks. When nicotine unlocks these receptors, dopamine is released, giving you a little hit or buzz. But this does not last long. The nicotine soon fades, making the receptors eager for more, which triggers cigarette cravings^[6].

Nicotine changes how your brain works, making it one of the most addictive substances in the world. The release of dopamine from nicotine is much larger than from other stimulants like caffeine^[2].

Signs and symptoms

Several signs indicate that you have developed nicotine dependence^[1]:

• You cannot stop smoking despite repeated attempts. You have made one or more serious attempts to stop without long-term success.
• You smoke within 30 minutes of waking up. The sooner you start smoking after waking and the more cigarettes you smoke during the day, the more dependent on nicotine you are.
• You experience withdrawal symptoms when you try to stop. Your attempts at stopping have caused physical and mood-related symptoms.
• You keep smoking despite health conditions. Even though you have developed health problems linked to smoking, you have not been able to stop.

Usually, if you smoke more than 10 cigarettes a day or have a cigarette in the first half hour after waking up, you have a nicotine addiction that is significant enough to give you real trouble when quitting^[6].

Nicotine withdrawal symptoms

When you stop using tobacco, withdrawal symptoms appear because your body has become dependent on nicotine. These symptoms typically start within hours of your last cigarette, peak during the first week, and usually subside within two to four weeks. However, everyone is different, and some people have withdrawal symptoms for several months after quitting^[5][16].

Common nicotine withdrawal symptoms include^[1][5][16]:

• Strong cravings for nicotine
• Anxiety
• Irritability, frustration, and anger
• Restlessness and impatience
• Difficulty concentrating or focusing
• Sleep problems, such as insomnia or sleeping too much
• Depression
• Increased appetite and weight gain
• Constipation

Other less common symptoms can include headaches, fatigue, dizziness, coughing, and mouth ulcers^[16].

Health risks of tobacco use

Tobacco use is responsible for about one in five deaths annually in the United States. On average, 435,000 people in the United States die prematurely from smoking-related diseases each year. The chance that a lifelong smoker will die prematurely from a complication of smoking is approximately 50%^[4].

Although nicotine plays a minor role, if any, in causing smoking-induced diseases, addiction to nicotine is the root cause of these diseases. Smoking-caused disease is a consequence of exposure to toxins in tobacco smoke^[4].

Tobacco use is a major cause of^[4][5]:

• Cancer, especially lung cancer
• Cardiovascular disease and heart attacks
• Chronic obstructive pulmonary disease (COPD)
• Stroke
• Respiratory tract and other infections
• Osteoporosis
• Reproductive disorders
• Delayed wound healing
• Duodenal and gastric ulcers
• Diabetes complications

The risk of serious disease diminishes rapidly after quitting, and permanent stopping reduces the risk of lung cancer, heart disease, and chronic lung disease. For example, after a heart attack, smokers’ cardiovascular death rate falls by 36% over two years if they stop smoking^[13][23].

Who does nicotine dependence affect?

Nicotine affects people of all ages but is most dangerous among teenagers. The brain is still developing during the teenage years, making it easier to become addicted to nicotine. Science has shown that the younger you are when you start using nicotine, the more likely you are to become addicted^[2].

A Surgeon General’s Report found that about three out of four high school students who smoke will continue to smoke in adulthood. The average smoker starts smoking as a teenager, a time of stress and searching for self-identity and general lack of concern about long-term health consequences^[2][5].

Nicotine dependence can develop from any tobacco product, including cigarettes, cigars, smokeless tobacco (dip), and electronic cigarettes used for vaping^[2].

Treatment options

The good news is that tobacco addiction is treatable. You are much more likely to be able to stop smoking if you use medications and counseling together. Both of these treatments work, especially when used in combination^[12][23].

No matter how long you have used nicotine, stopping can improve your health. While it is not easy, you can break your dependence on nicotine. There are effective treatment options, and you should ask your healthcare professional for help^[1].

Tobacco use and dependence is a chronic, relapsing condition that often requires repeated intervention and long-term support. Most people need multiple quit attempts to quit for good, and that is okay. You can learn from your setbacks and get closer to becoming smokefree^[9][23].

Medications for quitting

Seven medications are approved by the U.S. Food and Drug Administration (FDA) for smoking cessation. Using these medications can double your chances of quitting successfully^[9][10].

Nicotine Replacement Therapy (NRT)

Nicotine replacement therapy provides you with lower levels of nicotine without the harmful toxins found in tobacco smoke. This takes the edge off cravings and reduces withdrawal symptoms. NRT is available in several forms^[6][9]:

• Long-acting forms: Nicotine patches provide a slow, steady level of nicotine over a long period
• Short-acting forms: Nicotine gum, lozenges, nasal spray, and inhalers give faster delivery of nicotine to help you get past short, strong cravings

Most people who smoke need combination therapy: patches plus a faster-acting form of NRT. The most effective way to use NRT is to combine the long-acting nicotine patch with a shorter-acting product, and extend treatment beyond 12 weeks^[6][12].

Some nicotine replacement products are available over the counter, while others require a prescription. Nicotine patches can be purchased at a discounted price with a prescription from your doctor^[6].

Varenicline

Varenicline is a medication available only by prescription. It reduces nicotine withdrawal symptoms, including cravings, and reduces the rewarding effects of cigarettes by blocking nicotine receptors in the brain. Studies have shown that varenicline offers significant improvement in quit rates compared to other medications^[9][13].

While there have been case reports of behavior changes associated with varenicline, observational studies have not confirmed these reports, and the drug’s benefits outweigh potential risks^[12].

Bupropion

Bupropion is an antidepressant medication that reduces craving and other withdrawal symptoms. It works by affecting chemicals in the brain related to nicotine craving. It is available by prescription only and can be used alone or together with nicotine replacement therapy^[9][10].

Counseling and support

Behavioral counseling is an important part of quitting tobacco. Counseling can be in person, one-on-one or in a group, or over a telephone quitline. Text messaging and web-based programs also help people quit smoking^[9].

Two types of counseling are most effective: providing practical problem-solving skills and providing support and encouragement as part of treatment. Even brief advice from a healthcare professional, lasting less than three minutes, improves the chance of quitting successfully and is highly cost-effective^[8][10].

Free counseling is available through telephone quitlines. In the United States, any smoker can call 1-800-QUIT-NOW to access free counseling services. Quitlines may include call-back counseling and proactive interventions by quit line counselors^[10][14].

Healthcare professionals can contribute powerfully to motivating patients to attempt and sustain quitting by offering encouragement, advice, and assistance. Reassurance that a knowledgeable health professional stands ready to offer guidance and support is immensely beneficial to people addicted to nicotine^[14].

Success rates and challenges

In 2022, 67.7% of adults who smoked said they wanted to quit smoking. Half of adults who smoke cigarettes reported trying to quit in the past year. However, less than one in ten adults who smoke cigarettes succeed in quitting each year. In 2022, only 8.8% of adults who smoked were able to successfully quit smoking in the past year^[8].

Many adults who smoke do not get the advice, assistance, and treatments that can help them quit for good. In 2022, among adults who smoked and saw a health professional during the past year, only 50.5% reported receiving advice to quit from a health professional^[8].

Less than four in ten adults who smoke cigarettes used proven treatments when trying to quit smoking. In 2022, among adults who smoked and tried to quit in the last year or successfully quit in the last two years, only 38.3% used counseling or medication when trying to quit. Using counseling and medication together provides the best chance of quitting successfully^[8].

Despite these challenges, quitting is possible. Nearly two in three adults who have ever smoked cigarettes have quit. In fact, since 2002, there have been more people who used to smoke than people who currently smoke^[8].

Tips for managing cravings and triggers

Cravings develop when your body wants nicotine. The urge to smoke will come and go. You may start experiencing cravings within an hour or two after your last use of tobacco, and you may have them frequently for the next few days or weeks. As time passes, the cravings will get farther apart. However, you may have occasional mild cravings months or years after you quit^[16].

Strategies for handling cravings

Here are practical tips for managing nicotine cravings^[15][16][17]:

• Use nicotine replacement products or medications: These can help reduce the intensity of cravings
• Remind yourself that cravings will pass: Most cravings last only a few minutes
• Distract yourself: Listen to music, go for a walk, call a friend, play a video game, or do anything that takes your mind off the urge to smoke
• Avoid triggering situations: Stay away from places, activities, and situations that you associate with smoking, especially in the first weeks after quitting
• Find safe substitutes: Chew gum, eat healthy snacks, drink water, or keep your hands busy with other activities
• Practice deep breathing: Take slow, deep breaths to help manage stress and cravings

Managing your environment

You can change things about your home, car, and work that will make it easier to quit and stay quit^[17]:

• Get rid of all cigarettes, lighters, matches, and ashtrays before you quit
• Wash your clothes and anything else that smells of tobacco smoke
• Tell people you are quitting so they can support you
• Ask people who smoke not to smoke around you and not to offer you cigarettes
• Avoid places where people smoke, especially during the first couple of months

Dealing with specific triggers

Common triggers for tobacco use include being around other smokers, drinking coffee or alcohol, feeling stressed, and certain daily routines. Identifying your personal triggers and planning how to handle them is an important part of quitting successfully^[16][17].

For example, if you always smoke with your morning coffee, try switching to tea or drinking your coffee in a different location. If stress triggers your urge to smoke, find healthier ways to cope with stress, such as exercise, meditation, or talking to a friend^[15].

Remember that quitting tobacco is one of the most important steps you can take for your health. While it is extremely difficult, the treatments and support available today make success more achievable than ever before. Do not be discouraged if you are not able to quit on the first attempt—most people require multiple attempts before they quit for good^[5][10].