The course of treatment with Propan TLC (Vitamin B12) is 2 weeks. In traumatic lesions of peripheral nervous system - at 200-400 mcg every other day for 40-45 days. When hepatitis and cirrhosis - 30-60 mcg / day or 100 mg every other day for 25-40 days. Dystrophy in young children, Down syndrome and cerebral palsy - by 15-30 mcg every other day.