Forms and strengths Generic bupropion • oral immediate-release tablet: 75 mg, 100 mg • oral extended-release tablet: 100 mg, 150 mg, 200 mg, 300 mg Wellbutrin XL • oral extended-release ...

Form Starting dosage Maintenance dosage Maximum dosage bupropion XL 150 mg once per day 300 mg once per day 300 mg per day bupropion SR 150 mg once per day 150 mg twice per day (300 mg per day ...

The mechanism of action of bupropion is unknown ... several weeks to max 450mg/day in 3 divided doses; max single dose: 150mg (give 400mg/day as 100mg 4 times daily at least 4hrs apart).

Bupropion HCl 150mg, 300mg; ext-rel tabs. Swallow whole. Avoid bedtime dosing. ≥18yrs: MDD: initially 150mg once daily in the AM for at least 4 days; if tolerated, increase to 300mg once daily ...