Anivit 4BC Solution for Injection Presentation Anivit 4BC is a pale yellow to brown sterile solution for injection containing four members of the B-complex vitamins together with vitamin C. Each ml contains: Thiamine Hydrochloride (Vitamin B1) 35.0mg Riboflavin Sodium Phosphate (Vitamin B2) 0.5mg Pyridoxine Hydrochloride (Vitamin B6) 7.0mg Nicotinamide 23.0mg Ascorbic acid (Vitamin C) 70.0mg Chlorocresol (preservative) 1.0mg