What is Vitamin B12 (methylcobalamin)?

Category: Supplements

Most popular types: Methyl B-12 Prescription Jarrow B12 Lozenges Vitamin B12 (Methylcobalamin) Lozenge Show all

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Methylcobalamin is a form of vitamin B12. It can be used to replace levels in patients who don't have enough and may also be used to treat certain conditions such as neuropathy, ALS, and certain types of anemia.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Fatigue 77 43
General health 66 34
Amyotrophic lateral sclerosis 55 25
Multiple sclerosis 20 3
Loss of energy 12 3

Show all 52 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 0
Moderate 1
Mild 17
None 93

Commonly reported side effects and conditions associated with Vitamin B12 (methylcobalamin)

Side effect Patients
Restlessness (akathisia) 2
Diabetic neuropathy 1
Dizziness with disorientation 1
Fatigue 1
Hot flashes 1
Injection site bruising 1

Show all 10 reported side effects

Dosages

Based on patients currently taking Vitamin B12 (methylcobalamin)

Dosage Patients
1 mg daily 13
5,000 mcg daily 9
1,000 mcg daily 6
500 mcg daily 5
1,000 mg daily 5
25 mg daily 4
5 mg daily 3
2 mg daily 2
50 mg weekly 2
1,000 mcg weekly 2

See all 31 dosages

Why patients stopped taking Vitamin B12 (methylcobalamin)

Multiple reasons could be selected

Reason Patients
Other 23
Did not seem to work 15
Doctor's advice 11
Expense 8
Personal research 6
Course of treatment ended 4
Side effects too severe 3
See all 61 patients who've stopped taking Vitamin B12 (methylcobalamin)

Duration

Currently taking Vitamin B12 (methylcobalamin)

Duration Patients
6 months - 1 year 5
1 - 2 years 14
2 - 5 years 21
5 - 10 years 28
10 years or more 5

Stopped taking Vitamin B12 (methylcobalamin)

Duration Patients
Less than 1 month 6
1 - 6 months 20
6 months - 1 year 11
1 - 2 years 19
2 - 5 years 4
5 - 10 years 1
Adherence
Adherence Evaluations
Always 83
Usually 15
Sometimes 7
Never taken as prescribed 6
Burden
Burden Evaluations
Very hard to take 0
Somewhat hard to take 14
A little hard to take 29
Not at all hard to take 68
Cost per month
Cost per month Evaluations
$200+ 10
$100-199 5
$50-99 5
$25-49 2
< $25 37
Not specified 52
Last updated:

10 patient evaluations for Vitamin B12 (methylcobalamin)

Jun 15, 2015 (Started Jan 01, 2012)

  • Effectiveness
    None (for multiple sclerosis)
  • Side effects
    None
  • Adherence
    Never taken as prescribed
  • Burden
    Not at all hard to take
Dosage: 1000 mcg Daily

  • 0 helpful marks

Jan 10, 2014 (Started May 14, 2012)

  • Effectiveness
    Can't tell (for tremor in hands)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take

Jun 14, 2012 (Started May 14, 2012)

  • Effectiveness
    Moderate (for General health)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 500 mg Daily

  • 0 helpful marks

Feb 19, 2012 (Started Jul 01, 2010)

  • Effectiveness
    Can't tell (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 2 mg Daily

Jan 13, 2011 (Started Jul 01, 2010)

  • Effectiveness
    Can't tell (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Sometimes
  • Burden
    Not at all hard to take
Dosage: 2 mg Daily

  • 1 helpful mark
Last updated:
Showing 3 of 10 patient evaluations for Vitamin B12 (methylcobalamin)