safety of vitamin b12 injection in pregnancy How Quickly Does Work What Does a B12 Shot

Published online September 2006:335-341

Some of the signs of lower B12 levels in your body include: Pale or yellow-tinged skin Weakness and fatigue Balance and coordination are affected A sensation of pins and needles Mouth ulcers Blurred or disturbed vision On rare occasions, high temperature Mood changes Rani MD Treatment of vitamin B12 deficiency often includes dietary changes, B12 shots, or supplements

Serious and rarer side effects can include muscle cramping, irregular heartbeat, shortness of breath, slurred speech, vision changes, chest pain and weakness on one side of the body

Post-Treatment Recovery The 48-72 hours after injection is when growth factors actively signal tissue repair