i take 300 mg. welbutrin a day,150 mg inthe morning ,150 at night.Cani reduced my dosage to 150 without hurting myself?I was taking 150 mg a day and increase it to 300,no different effects,going back to 150 mg a day. will that cause any ill effects.?As of three weeks i have felt no change.the first dose of 150 help and i thought adding 150 mg would help .it's the same.There's nothing left to detail from me.