what is the best time to take b12 injections When Should You Get a Vitamin Injection? The Complete Guide to B12

Studies have demonstrated bioequivalence between generic and brand-name cyanocobalamin, meaning they have comparable absorption rates and overall effects

Initially, injections may be given weekly or biweekly until levels improve, followed by maintenance doses every 1-3 months

Gastrointestinal symptoms (more common with oral preparations): Mild nausea or upset stomach Diarrhoea (typically with very high doses) Other effects: Headache, particularly when treatment is first initiated Dizziness or light-headedness Skin reactions such as mild rash or itching Temporary reddish discolouration of urine (chromaturia) after hydroxocobalamin injections, which is harmless It is important to note that many symptoms attributed to B12 supplementation may actually represent the body's response to correcting a deficiency

Yes, but classical swallowed peptides are largely destroyed by gastric acid and digestive enzymes

Those who follow a vegetarian diet also have vitamin B12 deficiency