Call your doctor at once if you have a serious side effect such as: 1  headache with chest pain and severe dizziness, fast or pounding heartbeats, shortness of breath, fainting; 2  diarrhea that is watery or bloody;  fever, swollen glands, body aches, flu symptoms, new or worsening cough;
The maximum daily doses is also slightly different as both Wellbutrin XL and Wellbutrin have a maximum daily dose of 450 mg per day, whereas the maximum dosage for Wellbutrin SR is only 400 mg per day.
WellbutrinÂ® (bupropion hydrochloride) is a prescription medicine used for the treatment of depression (also known as major depression or clinical depression). (The information in this article refers specifically to short-acting, immediate-release Wellbutrin, not the longer-acting Wellbutrin SRÂ® or Wellbutrin XLÂ®.)