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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

METHYLCOBALAMIN: 424 Adverse Event Reports & Safety Profile

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424
Total FAERS Reports
46 (10.8%)
Deaths Reported
187
Hospitalizations
424
As Primary/Secondary Suspect
48
Life-Threatening
37
Disabilities

First Report: 20010301 · Latest Report: 20250621

What Are the Most Common METHYLCOBALAMIN Side Effects?

#1 Most Reported
Pyrexia
45 reports (10.6%)
#2 Most Reported
Rash
40 reports (9.4%)
#3 Most Reported
Productive cough
38 reports (9.0%)

All METHYLCOBALAMIN Side Effects by Frequency

Side Effect Reports % of Total Deaths Hosp.
Pyrexia 45 10.6% 2 12
Rash 40 9.4% 17 30
Cough 38 9.0% 0 3
Productive cough 38 9.0% 0 4
Diarrhoea 36 8.5% 19 24
Nasopharyngitis 36 8.5% 6 6
Drug hypersensitivity 35 8.3% 3 8
Drug intolerance 34 8.0% 3 5
Dyspnoea 34 8.0% 1 3
Lower respiratory tract infection 34 8.0% 6 6
Malaise 34 8.0% 0 3
Vomiting 34 8.0% 16 20
Wheezing 34 8.0% 6 6
Fall 33 7.8% 1 2
Rhinorrhoea 33 7.8% 0 0
Weight decreased 33 7.8% 0 0
Chest discomfort 32 7.6% 0 2
Condition aggravated 32 7.6% 9 25
Dizziness 32 7.6% 18 23
Insomnia 32 7.6% 0 4

Who Reports METHYLCOBALAMIN Side Effects? Age & Gender Data

Gender: 61.0% female, 39.0% male. Average age: 58.2 years. Most reports from: JP. View detailed demographics →

Is METHYLCOBALAMIN Getting Safer? Reports by Year

YearReportsDeathsHosp.
2001 2 0 1
2004 1 1 1
2005 2 0 2
2007 1 0 1
2008 1 0 1
2009 2 2 0
2010 6 0 2
2012 6 0 4
2013 9 2 6
2014 19 1 12
2015 25 3 17
2016 27 3 18
2017 17 2 11
2018 18 3 7
2019 15 1 10
2020 17 1 9
2021 16 0 8
2022 14 1 5
2023 11 3 2
2024 13 0 5
2025 5 0 4

View full timeline →

What Is METHYLCOBALAMIN Used For?

IndicationReports
Product used for unknown indication 167
Neuropathy peripheral 29
Mitochondrial encephalomyopathy 10
Lumbar spinal stenosis 7
Vitamin b12 deficiency 6
Vitamin supplementation 6
Hypoaesthesia 5
Nervous system disorder 5
Neuralgia 5

METHYLCOBALAMIN vs Alternatives: Which Is Safer?

METHYLCOBALAMIN vs METHYLDOPA METHYLCOBALAMIN vs METHYLENE BLUE METHYLCOBALAMIN vs METHYLENEDIOXYPYROVALERONE METHYLCOBALAMIN vs METHYLERGONOVINE METHYLCOBALAMIN vs METHYLNALTREXONE METHYLCOBALAMIN vs METHYLPHENIDATE METHYLCOBALAMIN vs METHYLPREDNISOLONE METHYLCOBALAMIN vs METHYLPREDNISOLONE ACEPONATE METHYLCOBALAMIN vs METHYLPREDNISOLONE HEMISUCCINATE METHYLCOBALAMIN vs METILDIGOXIN

Official FDA Label for METHYLCOBALAMIN

Official prescribing information from the FDA-approved drug label.