Each 5 mL contains: Thiamine Hydrochloride (Vitamin B1) 10 mg, Riboflavin Phosphate (Vitamin B2) 1.4 mg, Nicotinamide (Vitamin B3) 20 mg, Pyridoxine Hydrochloride (Vitamin B6) 5 mg, Cyanocobalamin (Vitamin B12) 5 mcg, L-Lysine Hydrochloride 300 mg, Ferrous Sulfate Heptahydrate 25 mg (equivalent to elemental iron 5 mg).