B12 injections can help restore energy levels and support general wellbeing, especially for those with clinically low levels or dietary restrictions
The symptoms experienced by the patient may include weakness, pale skin, irregular heartbeat, fatigue, shortness of breath, lightheadedness, pain in the chest, headaches, and even cold hands or feet
In that situation the responsible default is not assume it is fine unless proven harmful
Ask your pharmacy about them
The trials failed to show much benefit, though there appears to be a small protection against stroke and possibly cognitive decline
Hydroxocobalamin can be naturally produced by gut bacteria when digesting food but is also another man-made form of B12 that can be easily absorbed and used by the body