Avoid shaking, as this can break down the peptide
Common symptoms associated with low vitamin B12 levels may include: Muscle weakness Fatigue Irritability or mood changes Numbness or tingling in the hands and feet Smooth or swollen tongue Nausea Diarrhea Changes in heart rate Unexplained weight loss Balance or mobility concerns If you are experiencing symptoms associated with low vitamin B12 levels, it is important to speak with your healthcare provider and request appropriate testing
B vitamins and the brain: mechanisms, dose and efficacy
Weeks 1 to 4: 20 units (0.2 mL) once weekly Weeks 5 to 8: 40 units (0.4 mL) once weekly Weeks 9 to 12: 70 units (0.7 mL) once weekly Weeks 13 to 16: 90 units (0.9 mL) once weekly These are unit measurements based on insulin syringe markings
Cyanocobalamin | Drugs | BNF - NICE
Overall, if you have enough vitamin B12 in your body, you should have an increased level of cognitive functioning, and energy, and are more likely to be in a good mood