Medicine Name: Optineuron Injection. Composition: Thiamine(Vitamin B1) (100mg) + Vitamin B6 (Pyridoxine) (100mg) + Cyanocobalamin (1000mcg) + Vitamin B2 (5mg) + Nicotinamide (100mg) + D-Panthenol (50mg). Side Effects: Diarrhea Tiredness Headache Nausea Sleepiness Upset stomach.