Methylcobalamin side effects - from FDA reports


Summary

In this review, we analyze Methylcobalamin side effects by the time on the drug, gender and age of the people who have side effects while taking Methylcobalamin. The review is based on 167 people who have side effects while taking the drug from FDA, and is updated regularly.

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Methylcobalamin

Methylcobalamin has active ingredients of vitamin b12. It is often used in vitamin b12 deficiency. (latest outcomes from Methylcobalamin 196 users)

On Jul, 21, 2017

167 people who take Methylcobalamin are studied.


Number of reports submitted per year:

Methylcobalamin side effects.

Most common side effects over time *:

< 1 month:
  • rash
  • therapeutic response unexpected
  • tongue oedema
  • urticaria
  • visual impairment
  • vomiting
1 - 6 months:
  • asthma
  • dizziness
  • eye pain
  • yellow skin
6 - 12 months:
  • therapeutic response unexpected
  • hypoaesthesia
  • blood alkaline phosphatase increased
  • abnormal behaviour
  • blood pressure decreased
  • haemorrhoids
  • muscle spasms
1 - 2 years:
  • disseminated intravascular coagulation
  • white blood cell count decreased
2 - 5 years:
  • blood pressure increased
  • septic shock
not specified:
  • vomiting
  • cerebral infarction
  • weight decreased
  • acne
  • weight increased
  • convulsion
  • interstitial lung disease
  • myocardial infarction
  • nausea
  • personality change

Most common side effects by gender *:

female:
  • asthma
  • blood pressure increased
  • visual impairment
  • vomiting
  • weight increased
  • cerebral infarction
  • disseminated intravascular coagulation
  • dizziness
  • personality change
  • post-traumatic stress disorder
male:
  • acne
  • hypoaesthesia
  • vomiting
  • blood alkaline phosphatase increased
  • cerebral infarction
  • interstitial lung disease
  • myocardial infarction
  • platelet count decreased
  • rash
  • rash generalised

Most common side effects by age *:

2-9:
  • vomiting
10-19:
  • memory impairment
  • methylenetetrahydrofolate reductase deficiency
20-29:
  • abnormal behaviour
  • somnolence
  • suicidal ideation
  • tongue biting
  • weight increased
30-39:
  • blood alkaline phosphatase increased
  • personality change
  • rash
  • blood pressure decreased
  • cytomegalovirus infection
  • eye pain
  • large intestinal ulcer
  • muscle spasms
  • petechiae
  • urticaria
40-49:
  • splenic cyst
  • dizziness
  • overdose
  • prescribed overdose
  • rosacea
  • systemic lupus erythematosus
  • upper respiratory tract infection
  • vomiting
  • weight decreased
  • withdrawal syndrome
50-59:
  • weight decreased
  • dizziness
  • haematocrit increased
  • pain
  • pancreatic insufficiency
  • posterior reversible encephalopathy syndrome
  • pruritus
  • staphylococcal infection
  • tremor
  • vitreous floaters
60+:
  • cerebral infarction
  • acne
  • asthma
  • blood pressure increased
  • hypoaesthesia
  • convulsion
  • disseminated intravascular coagulation
  • interstitial lung disease
  • myocardial infarction
  • platelet count decreased

* Approximation only. Some reports may have incomplete information.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

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Related studies

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On eHealthMe, Methylcobalamin (vitamin b12) is often used to treat neuropathy peripheral. Find out below the conditions the drugs are used for and how effective they are.

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