Injections bypass the gastrointestinal system and, with it, any potential digestive obstacles
[9] [11] However, there is no robust evidence that B12 injections provide benefits to individuals with normal B12 levels
[20] For nutritional deficiency without intrinsic-factor loss, shorter courses-such as 30-100 mcg intramuscularly daily for five to ten days followed by 100-200 mcg monthly-are often sufficient
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Cyanocobalamin is primarily prescribed for vitamin B12 deficiency, which can occur due to a variety of conditions such as pernicious anemia, prolonged use of certain medications, surgery in the gastrointestinal tract or dietary deficiencies
The Samaritans (116 123) also provide 24/7 emotional support