 Optineuron InjectionThiamineVitamin B1 100mg Vitamin B6 Pyridoxine 100mg Cyanocobalamin 1000mcg Vitamin B2 5mg Nicotinamide 100mg D-Panthenol 50mgNutritional deficiencies Vitamin B12 deficiencyDiarrhea Tiredness Headache Nausea Sleepiness Upset stomach 