The intramuscular route is often chosen for the first treatment because it works well
Vitamin B12 deficiency can manifest through various psychiatric symptoms
Gastrointestinal Issues Nausea: One of the most common side effects, particularly when starting treatment
The Food and Nutrition Board has established recommended dietary allowances and dietary reference intakes for vitamin B12
22,23 In patients with a normal or low-normal serum vitamin B 12 level, complete blood count results demonstrating macrocytosis, or suspected clinical manifestations, a serum methylmalonic acid level is an appropriate next step 1,2,6,18 and is a more direct measure of vitamin B 12 's physiologic activity
After the specified room temperature storage period expires, the medication should be discarded even if doses remain, as potency cannot be guaranteed beyond these timeframes