Known side effects of Champix 0.5MG&1MG 2X14S include Nausea Headache Insomnia (difficulty in sleeping) Abnormal dreams Nasopharyngitis (inflammation of the throat and nasal passages). Not everyone experiences these side effects.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated June 2026
This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.