What’s the Wellbutrin dosage range? Immediate release Wellbutrin is supplied as either a 75 mg (milligrams) or 100 mg tablet. Although there’s no single best starting dose of Wellbutrin ...

The dosage for bupropion varies depending on the condition it’s being used to treat and the form of the drug you’re prescribed. Your doctor will prescribe the dosage and form that’s best for ...

The mechanism of action of bupropion is unknown, as is the case with other antidepressants. However, it is presumed that this action is mediated by noradrenergic and/or dopaminergic mechanisms.

Intervention. Random assignment of patients to placebo or SR bupropion treatment, 100, 150, or 300 mg/d, for 7 weeks (total duration of study was 52 weeks: 7 weeks of treatment and 45 weeks of ...