This reaction forms 1-methylnicotinamide (1-MNA) and S-adenosyl-L-homocysteine (SAH)
Vitamin B12 Deficiency: Recognition and Management
When combined with caloric restriction: the same study's diet-plus-injection arm showed 3.2 kg (7 pounds) additional loss versus diet-plus-placebo at 12 weeks, which was statistically significant (p=0.03)
Contact your healthcare provider if you experience: Severe or persistent abdominal pain Continuous vomiting or dehydration Severe constipation lasting for several days Signs of low blood sugar levels (dizziness, confusion, lightheadedness, sweating, or rapid heartbeat) Allergic or hypersensitivity reaction (Symptoms of hypersensitivity reaction are skin rash, itching, urticaria (hives), flushing, shortness of breath, swelling of face, lips, and tongue, redness, sneezing, nasal congestion, watery eyes, cough, wheezing, chest tightness, dizziness, vomiting, abdominal pain, rapid heartbeat, and low blood pressure