Some side effects: allergic reaction, change in urine colour, insomnia Some people state they have problems falling asleep after taking vitamin B12
Instead, it usually prevents your body from using the vitamin B12 that your body has
Advantages of oral form over IM injection: Less nursing time on injections Less complexity of care Less discomfort/pain Less bleeding in patients who take anticoagulants Less costly according to some analyses Disadvantages of oral form over IM injection:: Greater risk of non-compliance In 1991, a survey done on Minneapolis internists led one commentary to conclude that oral vitamin B 12 replacement for pernicious anemia was one of medicines best kept secret. 18 In 1996, when the survey was repeated again in the same area, awareness and use of oral vitamin B 12 for pernicious anemia had increased substantially (019%), but the majority of doctors still remain unaware of this treatment option (61%)
But if you have pernicious anemia (that is caused by a B12 deficiency) or have any other trouble absorbing B12, injections might be a good idea for you, Warren says
They complement each other, helping boost energy levels and enhance cognitive function
Carnitine in the treatment of valproic acid-induced toxicity
