Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Vitamin B12 deficiency 200 61
General health 186 90
Fatigue 59 27
Fibromyalgia 21 9
Multiple sclerosis 20 10

Show all 95 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 2
Moderate 5
Mild 7
None 221

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

Side effect Patients
Back pain 1
Bruising 1
Diarrhea 1
Dizziness with nausea 1
Fatigue 1
Heavy sensation 1

Show all 15 reported side effects

Dosages

Based on patients currently taking Vitamin B12 (cyanocobalamin)

Dosage Patients
1 mg daily 43
1,000 mcg daily 37
500 mcg daily 23
1 mg monthly 7
2,500 mcg daily 7
1 mg twice daily 6
2,000 mcg daily 6
5,000 mcg daily 6
1 mg weekly 5
2.5 mg daily 4

See all 60 dosages

Why patients stopped taking Vitamin B12 (cyanocobalamin)

Multiple reasons could be selected

Reason Patients
Other 42
Doctor's advice 26
Did not seem to work 23
Course of treatment ended 18
Expense 13
Personal research 4
Change in health plan coverage 1
Side effects too severe 1
See all 107 patients who've stopped taking Vitamin B12 (cyanocobalamin)

Duration

Currently taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 2
1 - 6 months 12
6 months - 1 year 20
1 - 2 years 34
2 - 5 years 57
5 - 10 years 73
10 years or more 27

Stopped taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 11
1 - 6 months 34
6 months - 1 year 21
1 - 2 years 21
2 - 5 years 14
5 - 10 years 6
10 years or more 1
Adherence
Adherence Evaluations
Always 177
Usually 33
Sometimes 10
Never taken as prescribed 15
Burden
Burden Evaluations
Very hard to take 3
Somewhat hard to take 8
A little hard to take 35
Not at all hard to take 189
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 0
$25-49 2
< $25 144
Not specified 89

What people switch to and from

Patients started taking Vitamin B12 (cyanocobalamin) after stopping:

Treatment Patients
Vitamin B12 (hydroxocobalamin) Injection (Hydro B12) 1
Last updated:

27 patient evaluations for Vitamin B12 (cyanocobalamin)

Oct 30, 2017 (Started Jan 15, 2015)

  • Effectiveness
    Moderate (for multiple sclerosis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 5000 mcg Weekly
Cost: < $25 monthly

  • 0 helpful marks

Oct 7, 2017 (Started Jun 15, 2014)

  • Effectiveness
    Can't tell (for vitamin B12 deficiency)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 tablet(s) Daily

  • 0 helpful marks

Dec 20, 2016 (Started Jun 28, 2013)

  • Effectiveness
    Major (for vitamin B12 deficiency)
  • Effectiveness
    Can't tell (for loss of energy)
  • Effectiveness
    Can't tell (for General health)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1000 mcg Daily
Advice & Tips: The amount of Vitamin B12 in my blood has improved GREATLY.
Cost: < $25 monthly

Feb 24, 2015 (Started Jun 28, 2013)

  • Effectiveness
    Slight (for loss of energy)
  • Effectiveness
    Can't tell (for General health)
  • Effectiveness
    Major (for vitamin B12 deficiency)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1000 mcg Daily
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 27 patient evaluations for Vitamin B12 (cyanocobalamin)