Nicotine withdrawal symptoms and how long they last
Last updated 19 October 2026
Nicotine withdrawal is strongest in the first week, especially the first three days, and usually eases over two to four weeks. Common symptoms are cravings, irritability, trouble concentrating, poor sleep, restlessness, anxiety, low mood and a bigger appetite.
Common symptoms
The US National Cancer Institute lists these as the most common:
- Cravings for a cigarette
- Irritability, frustration or anger
- Trouble concentrating
- Trouble sleeping
- Restlessness and anxiety
- Feeling down
- A bigger appetite
Less common symptoms
Some people also notice headaches, tiredness, dizziness, coughing, mouth ulcers or constipation. Coughing more in the first weeks is common as the airways start clearing themselves.
The timeline
The NHS says withdrawal is strongest in the first week, especially the first three days, and lasts three to four weeks on average. Cancer Research UK describes the same pattern: a peak in the first few days, easing over two to four weeks. Occasional cravings can return months later, often in a familiar situation, and they pass the same way.
If low mood is severe or does not lift, talk to a doctor.
Making the hard days visible
Freewill has a ten second daily check-in for happiness, confidence, craving and irritability. Over a few weeks the chart usually shows craving and irritability falling and confidence rising, with bad days in between, which makes a bad day easier to put in perspective. The community has rooms for the first week, the second week and beyond, so you can talk to people on the same day as you.
Sources
- National Cancer Institute: Handling nicotine withdrawal and triggers
- NHS: Managing nicotine withdrawal symptoms
- Cancer Research UK: How to stop smoking
This guide is general information, not medical advice. If you use nicotine replacement or medication, follow your doctor or pharmacist.