Hematocrit, reticulocyte count, vitamin B12, folate and iron levels should be obtained prior to treatment
Nothing in this article should be interpreted as guidance for human use, in line with MHRA regulations under the Human Medicines Regulations 2012
B12 injections should be avoided during pregnancy, breastfeeding, or if you plan to become pregnant or breastfeed soon
Symptoms can develop quickly and include: feeling faint or lightheaded difficulty breathing or wheezing rapid heartbeat confusion anxiety clammy skin collapsing or losing consciousness hives swelling stomach pain, nausea, or vomiting If you or someone nearby develops these symptoms, you should: Check to see whether they have an epinephrine pen
Vegetarians and vegans lack dietary B12 sources unless they consume fortified foods
How quickly will I feel the effects