Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
vitamin B12 deficiency 187 59
General health 170 92
Vitamin B12 deficiency 71 30
Fatigue 57 27
fibromyalgia 21 9
pernicious anemia 20 7

Show all 102 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 1
Moderate 5
Mild 6
None 214

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

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

Show all 13 reported side effects

Dosages

Based on patients currently taking Vitamin B12 (cyanocobalamin)

Dosage Patients
1,000 mcg daily 31
1 mg daily 16
500 mcg daily 12
1 mg monthly 7
1 mg weekly 5
1 mcg daily 5
1 mg twice daily 5
250 mcg daily 5
2.5 mg daily 4
1,000 mg daily 4

See all 55 dosages

Why patients stopped taking Vitamin B12 (cyanocobalamin)

Multiple reasons could be selected

Reason Patients
Other 40
Doctor's advice 25
Did not seem to work 21
Course of treatment ended 17
Expense 12
Personal research 4
Change in health plan coverage 1
Side effects too severe 1
See all 101 patients who've stopped taking Vitamin B12 (cyanocobalamin)

Duration

Currently taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 2
1 - 6 months 10
6 months - 1 year 16
1 - 2 years 21
2 - 5 years 40
5 - 10 years 49
10 years or more 18

Stopped taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 11
1 - 6 months 31
6 months - 1 year 19
1 - 2 years 20
2 - 5 years 14
5 - 10 years 6
10 years or more 1
Adherence
Adherence Evaluations
Always 169
Usually 32
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 36
Not at all hard to take 179
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 0
$25-49 2
< $25 139
Not specified 85
Last updated:

25 patient evaluations for Vitamin B12 (cyanocobalamin)

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

Aug 17, 2016 (Started Feb 15, 2015)

  • Effectiveness
    None (for vitamin B12 deficiency)
  • Side effects
    None
  • Adherence
    Never taken as prescribed
  • Burden
    Not at all hard to take

Feb 15, 2016 (Started Feb 15, 2015)

  • Effectiveness
    Major (for vitamin B12 deficiency)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 2.5 mg Daily

  • 0 helpful marks

Jun 15, 2016 (Started Jun 30, 2012)

  • Effectiveness
    None (for vitamin B12 deficiency)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 mg Twice daily

  • 0 helpful marks
Last updated:
Showing 3 of 25 patient evaluations for Vitamin B12 (cyanocobalamin)