Hi I have been on tegretol for past 4 years I used to expirience nocturnal convulsions but they ended and I have never experienced them for the past three years and a half earlier I was taking tegretol 200mg in the morning and 200mg at night they have subsequently been reduced to 100mg in morning 200at night then to 100mg morning 100 at night then to 50mg morning 100 night now am taking 50mg morning 50 at night am wondering my next dosage will be??