diagnosis for b12 injection INJECTIONS Pernicious Anemia - Diagnosis and
Description
Providers often indicate that youll need several shots each week although you may be able to slowly reduce shot frequency

Some patients may begin with weekly injections to establish steady nutrient levels, while others transition to biweekly or monthly treatments once those levels are stabilized

Biochemical Pharmacology (2019) 6

If you prefer the standard 1000 mcg dose, inform the doctor during your appointment

Safety and efficacy in humans remain unestablished