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If no improvement appears after six months of consistent use, consider whether the protocol needs modification
For example, you shouldn't use this medication if you're allergic to cyanocobalamin or cobalt, or if you have Lebers disease, which is an inherited form of vision loss
Other long-term causes may also need ongoing treatment based on clinical review
An intramuscular (IM) injection delivers vitamin B12 directly into a muscle, usually in the upper arm, thigh, or upper buttocks
Information provided in this article reflects publicly available guidance as of the publication date and may not reflect the most current regulatory requirements
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