"Extra doses? No. Extra doses could cause your body to either OD or develop an immunity to it, but you're more of a chance to OD." He walked over to a cabinent and pulled out a small vial and walked over to her and handed it to her. "Drink this...and your magical abilities will be siphoned temporarily before returning to you within three hours. I'll only teach you for up to two hours a day, then you must be off. Shall we get started?"