Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives
do not self-initiate Dosing data for BPC-157 in humans is limited
Boosting Energy, Mood, and Metabolism A noticeable benefit many patients experience from vitamin b complex shots is a significant boost in energy
Gives me energy and focus
Poor dietary intake , particularly in those following vegetarian or vegan diets that lack animal-derived sources of B12