Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Vitamin B12 deficiency 199 62
General health 185 90
Fatigue 59 27
Fibromyalgia 20 8
Pernicious anemia 20 7

Show all 93 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
218

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
1,000 mcg daily 40
1 mg daily 34
500 mcg daily 21
1 mg monthly 9
1 mg twice daily 9
2,500 mcg daily 7
250 mcg daily 5
1 mg weekly 4
1 tablet(s) daily 4
100 mcg daily 4

See all 66 dosages

Why patients stopped taking Vitamin B12 (cyanocobalamin)

Multiple reasons could be selected

Reason Patients
Other 41
Doctor's advice 26
Did not seem to work 23
Course of treatment ended 18
Expense 12
Personal research 5
Change in health plan coverage 1
Side effects too severe 1
See all 106 patients who've stopped taking Vitamin B12 (cyanocobalamin)

Duration

Currently taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 1
1 - 6 months 15
6 months - 1 year 21
1 - 2 years 32
2 - 5 years 59
5 - 10 years 62
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 20
1 - 2 years 21
2 - 5 years 14
5 - 10 years 6
10 years or more 1
Adherence
Adherence Evaluations
Always 174
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 186
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 0
$25-49 2
< $25 141
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)

Feb 7, 2018 (Started Oct 20, 2017)

  • Effectiveness
    Major (for myalgic encephalomyelitis/chronic fatigue syndrome)
  • Side effects
    Mild (sore throat, back pain)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 other Twice daily
Cost: < $25 monthly

Dec 2, 2017 (Started Oct 20, 2017)

  • Effectiveness
    Major (for myalgic encephalomyelitis/chronic fatigue syndrome)
  • Side effects
    Severe (sore throat, back pain)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 other Twice daily
Advice & Tips: The novelty had worn off. I am talking my dosage more in line with the recommendation. That would be 2 vapes after getting up and 2 vapes when preparing for bed. A few times, after exertion I take 2 vapes top remove fatigue. The pain I feel is not new or a direct cause of vaping but because I am not so fatigued that pain is unnoticeable. In fact, It has been a long time since feeling the intensity of pain that I am able to feel now. However, fatigue from autonomic exertion has all but disappeared. Ate a large (normal for the day) meal Thanksgiving and did not get fatigued as my body digested the meal. I really think a clinical study on taking huge dosages of vitamin B12 to mitigate systemic fatigue should be undertaken.
Cost: < $25 monthly

Nov 16, 2017 (Started Oct 20, 2017)

  • Effectiveness
    Moderate (for myalgic encephalomyelitis/chronic fatigue syndrome)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 other Twice daily
Advice & Tips: Continue to have more energy. Came back from chiropractor today and he was shocked at how well I looked. Guess the effects are noticing to other people also. Two vapes prior to making bed in morning and at night and one or two during the day when I am active.
Cost: < $25 monthly

Oct 20, 2017 (Started Oct 20, 2017)

  • Effectiveness
    Slight (for myalgic encephalomyelitis/chronic fatigue syndrome)
  • Effectiveness
    Moderate (for General health)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 other Twice daily
Advice & Tips: First report. Might be placebo effect. Taking to improve/prevent fatigue/malaise.
Cost: < $25 monthly

  • 0 helpful marks

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
Last updated:
Showing 3 of 27 patient evaluations for Vitamin B12 (cyanocobalamin)