Each injection comes in its own individually prefilled package capped for safety and easy insertion in the Self-Injector
Bacteriostatic Water for Injection - Prescribing Information (Pregnancy Use)
The injections, whether B-12, Lipo-B12 or Super B-12, are to be given as intramuscular injections, ONCE A WEEK (5 to 7 days okay for optimal utilization, 4 to 8 days interval is either too early or too later) If you want, you can take the 5 or 10 shot injection kit of any kind home for self-administration

B12 (cobalamin) is a water-soluble vitamin essential for neurological function, red blood cell formation, and DNA synthesis Joint pain is not listed as a recognised adverse effect in the BNF or licensed B12 product information When joint discomfort occurs after starting B12, it is typically coincidental or related to excipients, injection technique, or pre-existing conditions Severe B12 deficiency itself can cause neuropathic symptoms that may be misinterpreted as joint pain Do not discontinue prescribed B12 treatment without medical guidance, particularly for confirmed deficiency or pernicious anaemia Seek prompt medical advice for severe joint pain, hot swollen joints with fever, or symptoms of allergic reaction Table of Contents Can Vitamin B12 Cause Joint Pain
Neonates: Bacteriostatic Water for Injection is contraindicated in neonates (newborn infants), especially premature infants
(Vitamin B12 is found in meats and animal products like eggs.) Poor absorption When patients consume enough Vitamin B12 and Folate, but their body can not absorb or use the vitamins normally