NRT may cause problems if you are:

Pregnant
Breast-feeding
Suffering from an active peptic ulcer
Suffer from angina, high blood - pressure, heart problems etc
Have hyperthyroidism
Have diabetes mellitus

If you have one of these conditions it may still be safe for you to use NRT but you should discuss with your doctor whether it would be OK for you to use them.

If the doctor thinks it is safe, you should consider using one of the nicotine products other than the patch because the patch offers you less control over the dose being absorbed at any one time than the other NRT products.

Leaving daytime nicotine patches on at night can lead to vivid dreams and/or nightmares.

NRT is not licensed for people under 18 years of age: young people should seek the advice of a doctor.