If you are using bupropion to quit smoking and experience any of these symptoms, stop taking it and contact your doctor right away.

Also, tell your doctor right away if you have any of these symptoms after stopping treatment with bupropion. It may also be used to prevent seasonal affective disorder (SAD), a type of depression that occurs each year at the same time (for example, during winter).

If you have stomach upset, you may take this medication with or after a meal or snack.

Taking this medication late in the day may cause trouble sleeping (insomnia).

If any of these effects persist or worsen, tell your doctor or pharmacist promptly. This effect is harmless because your body has already absorbed the medication.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects.

Do not increase your dose or use this drug more often or for longer than prescribed.

Your condition will not improve any faster, and your risk of side effects will increase.However, a small number of people (especially people younger than 25) who take antidepressants for any condition may experience new or worsening depression, other mental/mood symptoms, or suicidal thoughts/attempts.Therefore, it is very important to talk with the doctor about the risks and benefits of antidepressant medication, even if treatment is not for a mental/mood condition.Bupropion is an antidepressant used for smoking cessation and to treat a variety of conditions, including depression and other mental/mood disorders.Antidepressants can help prevent suicidal thoughts/attempts and provide other important benefits.It may also be used to treat anxiety in people with depression.