Vitamin B12 is important for proper digestion, and a deficiency can lead to digestive issues such as diarrhoea, constipation, and loss of appetite
Hydroxocobalamin injection: Product information
[13] It is available as a generic medication and over the counter
Allergies to vitamin B12 are extremely rarerarer than common allergies like bee stings, peanut butter, or shellfish
Side effects are typically mild and may include temporary redness or soreness at the injection site, a brief "flushed" feeling, or short-lived lightheadedness
If your main concern is the constant feeling of tiredness or fatigue mainly caused by the deficiency of this vitamin, then you will be able to replenish your vibrancy with B12 as soon as a few days