Bupropion is prescribed to relieve depression (available under the brand name Wellbutrin) and enhance smoking cessation (Zyban). As you can see in the infographic, it’s linked with unwanted side effects. Obviously, a full list is longer and includes both physiological (dry mouth, high blood pressure, headache, etc.) and psychological (anxiety, irritability, restlessness, etc.) symptoms. They vary from person to person. You will probably experience a couple of mildly uncomfortable events that will go away within a week or two. 

The risks of unwanted effects are low if a user follows a doctor’s prescription carefully (sticks to the exact dose, takes a whole pill instead of chewing or dividing it, and takes pills at the same time every day). Also, AddictionResource authors warn users against taking bupropion to treat more than one condition at a time. If it’s your means to overcome depression, do not use it to support smoking cessation.

https://addictionresource.com/drugs/wellbutrin/side-effects/