why do people take b12 injections Feeling worse after Injection: Answering concerns How Often Can You Get

[18] Endogenous vitamin B 12 becomes inactive when exposed to hydrogen cyanide and nitric oxide in cigarette smoke

There are no other absolute contraindications reported for hydroxocobalamin use in deficiency states, but caution is advised in individuals with conditions such as early Lebers optic neuropathy (a rare hereditary optic atrophy) due to the theoretical risk of worsening vision

We also typically recommend cycling peptides, using them for a set period followed by a break, to maintain the bodys sensitivity and maximize results over the long term

Please report these side effects immediately to your providerespecially if it is your first time receiving B12 injections