Who can take varenicline
Most adults can take varenicline.
Who may not be able to take varenicline
Varenicline is not suitable for some people. To make sure it’s safe for you, tell your doctor before starting to take varenicline if you:
- have ever had an allergic reaction to varenicline or any of the ingredients in it
- have kidney problems
- have ever had problems with your heart
- are pregnant or breastfeeding
- have ever had a seizure or fit
Varenicline can also cause or make some conditions worse. These include:
- depression and other mental health conditions
- sleep problems such as insomnia
- abnormal dreams
This is not common but talk to a doctor before taking varenicline.