The remaining 25 articles were included in the qualitative synthesis, and 16 in the quantitative synthesis (Figure 1)
A: It varies by person and lifestyle, but results typically last from one to three weeks
Once your red blood cells return to normal, you'll typically be given further injections on alternate days for the next two weeks
Communicate regularly: Keep your healthcare provider updated on your routine and any side effects you notice
After having a B12 shot, a person should monitor for adverse symptoms and seek medical help if they experience: severe pain at the injection site mild diarrhea a swelling sensation in the body temporary itching of the skin In rare cases, a person may also be at risk of: pulmonary edema peripheral vascular thrombosis, which involves blood clots polycythemia vera, which is a type of blood cancer If anyone experiences difficulty breathing, hives, and swelling, they need emergency medical help