Smoking Cessation
Quitting smoking is the single most important step you can take to improve your lung health and reduce the risk of heart disease, stroke, cancer, and premature death. The USPSTF gives smoking cessation a Grade A recommendation — the highest level of evidence.[1]
Benefits of quitting — at any age
What happens when you quit
- Within hours: Heart rate and blood pressure begin to normalize. Carbon monoxide levels in the blood drop.
- Within weeks: Circulation and lung function begin to improve. Cough and shortness of breath decrease.
- Within months: Cilia in the airways recover, improving ability to clear mucus and reduce infection risk.
- Within 1 year: Excess risk of coronary heart disease drops to about half that of a current smoker.
- Within 5–15 years: Stroke risk approaches that of a non-smoker. Risk of many cancers decreases substantially.
- Within 10–15 years: Lung cancer death risk drops to about half that of a continuing smoker.
Quitting and lung disease
- COPD: Smoking cessation is the single most effective intervention for slowing lung function decline in COPD. It matters more than any inhaler.[2]
- Asthma: Smoking worsens asthma control, reduces the effectiveness of inhaled corticosteroids, and increases exacerbation risk.
- Lung cancer: Quitting reduces lung cancer risk progressively. Screening eligibility criteria include a quit window of 15 years.
- Sleep apnea: Smoking increases upper airway inflammation and edema, worsening OSA severity.
- Pulmonary fibrosis: Smoking is a risk factor for IPF. Cessation is recommended for all patients with interstitial lung disease.
It is never too late to quit. Benefits begin within hours and continue to accumulate for years.
FDA-approved medications for quitting
Medications approximately double quit rates compared to willpower alone. The USPSTF recommends that clinicians offer FDA-approved pharmacotherapy to all adults who smoke.[1]
Nicotine replacement therapy (NRT)
NRT provides controlled nicotine to reduce withdrawal symptoms and cravings without the harmful chemicals in cigarette smoke.[1]
- Nicotine patch: Provides steady nicotine delivery over 24 hours. Available OTC. Step-down dosing (21mg → 14mg → 7mg).
- Nicotine gum: Short-acting, chew-and-park technique. Available in 2mg and 4mg. Use 4mg if you smoke within 30 minutes of waking.
- Nicotine lozenge: Dissolves in the mouth over 20–30 minutes. Available OTC in 2mg and 4mg.
- Nicotine inhaler: Prescription. Mimics the hand-to-mouth habit. Delivers nicotine to the oral mucosa, not deep into the lungs.
- Nicotine nasal spray: Prescription. Fastest-acting NRT form. Can cause nasal irritation initially.
- Combination NRT: Using the patch (long-acting) plus gum or lozenge (short-acting for breakthrough cravings) is more effective than either alone.[1]
Prescription medications
- Varenicline (Chantix): The most effective single-agent medication for smoking cessation. Partially activates nicotine receptors, reducing cravings and withdrawal while blocking the rewarding effects of smoking. Typical course is 12 weeks. The EAGLES trial confirmed cardiovascular safety.[1]
- Bupropion SR (Wellbutrin SR, Zyban): An antidepressant that reduces cravings and withdrawal symptoms. Can be combined with NRT. Contraindicated in patients with seizure disorders or eating disorders.
All FDA-approved cessation medications are safe and effective. The choice depends on patient preference, medical history, and insurance coverage. Combining medication with behavioral support produces the best outcomes.[1]
Counseling and support resources
Behavioral interventions increase quit rates, and combining them with pharmacotherapy is more effective than either approach alone.[1]
Support options
- Quitline: Call 1-800-QUIT-NOW (1-800-784-8669) — free counseling and often free NRT, available in all US states.
- Smokefree.gov: Free text programs (text QUIT to 47848), smartphone apps (quitSTART), and online chat support from the National Cancer Institute.
- In-person or telehealth counseling: Individual, group, or clinician-delivered counseling all improve quit rates.
- Your clinician: Ask at any visit. Even brief advice from a clinician increases the likelihood of a quit attempt.
Practical strategies
- Set a quit date: Choose a date within the next 2 weeks. Start medication 1–2 weeks before (for varenicline) or on the quit date (for NRT).
- Identify triggers: Note situations where you smoke (morning coffee, driving, stress, alcohol) and plan alternatives.
- Tell people: Social support matters. Let friends, family, and coworkers know you are quitting.
- Remove cues: Get rid of cigarettes, lighters, and ashtrays. Clean your car and home to remove the smell.
- Expect withdrawal: Irritability, anxiety, difficulty concentrating, and increased appetite typically peak in the first week and improve within 2–4 weeks.
- Relapse is not failure: Most people make multiple quit attempts before succeeding permanently. Each attempt teaches you something useful for the next one.
Insurance coverage
Because smoking cessation has a USPSTF Grade A recommendation, most private health insurance plans are required to cover FDA-approved cessation medications and behavioral counseling without cost-sharing (no copay, no deductible). Medicare covers two quit attempts per year with up to four counseling sessions each. Medicaid coverage varies by state. Ask your clinician or insurer about your specific benefits.[1]
References
- US Preventive Services Task Force; Krist AH, Davidson KW, Mangione CM, et al. Interventions for tobacco smoking cessation in adults, including pregnant persons: US Preventive Services Task Force recommendation statement. JAMA. 2021;325(3):265-279. doi:10.1001/jama.2020.25019
- Global Initiative for Chronic Obstructive Lung Disease (GOLD). Global Strategy for Prevention, Diagnosis and Management of COPD: 2026 Report. Available from: goldcopd.org