We usually suggest injections for pernicious anemia to keep vitamin B12 levels up
Vitamin B12 supplements may help treat certain symptoms of kidney disease
Methylcobalamin: Metabolites of vitamin B12 are formed by this process

its relevance to retatrutide specifically is not yet established A history of pancreatitis or significant gastrointestinal disease Gallbladder disease , including a history of gallstones or cholecystitis Diabetes mellitus , particularly if managed with insulin or sulphonylureas, due to hypoglycaemia risk Cardiovascular disease , including arrhythmias or recent cardiac events Renal or hepatic impairment , which may affect tolerability and increase the risk of dehydration-related complications Pregnancy or breastfeeding no safety data exist for retatrutide in these groups Use of oral medicines where absorption may be affected by delayed gastric emptying , such as levothyroxine or combined oral contraceptives Seek urgent medical attention if you experience severe or persistent nausea or vomiting, persistent abdominal pain (which may indicate pancreatitis or gallbladder disease), signs of an allergic reaction (rash, swelling, difficulty breathing), chest pain, palpitations, or signs of dehydration

Injectable administration ensures rapid systemic absorption , particularly valuable for patients with malabsorption syndromes, gastrointestinal disorders, or those requiring higher therapeutic doses