Adverse reactions following intramuscular (IM) injection have included anxiety, mild transient diarrhea, ataxia, nervousness, pruritus, transitory exanthema, and a feeling of swelling of the entire body
Hydroxocobalamin: Pregnancy warnings
Reference: 51MQ50 5-Amino-1MQ 50mg 5-Amino-1MQ is a research compound that works by inhibiting the enzyme nicotinamide N-methyltransferase (NNMT), which in turn helps increase cellular NAD+ levels
Why Do Some People Struggle More With Early B12 Injection Symptoms Than Others
however, cases of hypercobalaminemia in leukemia, autoimmune diseases, and pulmonary and renal dysfunction have also been observed (Andrs et al., 2013