vitamin b1 b12 injection Sandoz Injectable Solution - 1000 mcg/10 mL vitamin b1 b6 b12 injection

Wintrobe's clinical hematology (12th ed.)

B12 injections are designed to help restore healthy B12 levels and support the bodys normal energy and metabolic functions

Compounded peptides are sometimes offered when branded medications are expensive or in short supply, but the FDA has warned that compounded semaglutide and tirzepatide may not meet the same safety or quality standards as FDA-approved products (FDA statement on compounded semaglutide)

That being said, some people who have taken injectable vitamin B12 have complained of difficulty walking and balancing, nervousness, anxiety, weakness, lack of coordination, and even a sensation of pins and needles, per SFGate

People on PPIs for a long time should get their B12 levels checked regularly