Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Vitamin B12 Deficiency 168 47
General health 160 67
Vitamin B12 deficiency 60 26
Fatigue 54 27
Fibromyalgia 20 8
Pernicious Anemia 19 7

Show all 99 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 178

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 25
1 mg daily 15
500 mcg daily 11
1 mg monthly 8
1 mg weekly 7
250 mcg daily 5
1 mg twice daily 4
5 mg daily 4
1,000 mg daily 4
1 capsule(s) daily 3

See all 43 dosages

Why patients stopped taking Vitamin B12 (cyanocobalamin)

Multiple reasons could be selected

Reason Patients
Other 38
Doctor's advice 24
Did not seem to work 21
Course of treatment ended 15
Expense 12
Personal research 4
Side effects too severe 2
See all 96 patients who’ve stopped taking Vitamin B12 (cyanocobalamin)

Duration

Currently taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 2
1 - 6 months 6
6 months - 1 year 14
1 - 2 years 23
2 - 5 years 36
5 - 10 years 29
10 years or more 18

Stopped taking Vitamin B12 (cyanocobalamin)

Duration Patients
Less than 1 month 8
1 - 6 months 29
6 months - 1 year 19
1 - 2 years 21
2 - 5 years 14
5 - 10 years 5
10 years or more 1
Adherence
Adherence Evaluations
Always 136
Usually 30
Sometimes 10
Never taken as prescribed 14
Burden
Burden Evaluations
Very hard to take 3
Somewhat hard to take 7
A little hard to take 34
Not at all hard to take 146
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 0
$25-49 2
< $25 117
Not specified 71
Last updated:

25 patient evaluations for Vitamin B12 (cyanocobalamin)

140 members have decided to share their profiles only with other members of PatientsLikeMe.

Les1952
36733 thumb
Les1952
Sex: M
Data Quality: 2 stars
Sensation: None
Overall: Mild
Cognition: mild
Vision: moderate
Speech: mild
Swallowing: none
Upper limb: moderate
Walking: mild
I am: vg
I have:
MS

See Les1952's full Vitamin B12 (cyanocobalamin) history

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
thjuland
647 thumb
thjuland
Sex: M
Data Quality: 3 stars
Sensation: Mild
Overall: Mild
Cognition: moderate
Vision: moderate
Speech: mild
Swallowing: mild
Upper limb: mild
Walking: moderate
I am: vg
I have:
MS

See thjuland's full Vitamin B12 (cyanocobalamin) history

May 11, 2016 (Started Feb 15, 2016)

  • Effectiveness
    Major (for Vitamin B12 deficiency)
  • Effectiveness
    Slight (for Multiple Sclerosis)
  • Effectiveness
    Major (for Loss of energy)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 mg Daily
Advice & Tips: This continues to be effective.
Cost: < $25 monthly

  • 0 helpful marks
tigger13039
27298 thumb
tigger13039
Sex: M
Data Quality: 2 stars
Sensation: Moderate
Overall: Moderate
Cognition: moderate
Vision: moderate
Speech: moderate
Swallowing: mild
Upper limb: moderate
Walking: moderate
I am: n
I have:
MS

See tigger13039's full Vitamin B12 (cyanocobalamin) history

Jul 1, 2015 (Started Sep 02, 2009)

  • Effectiveness
    None (for Vitamin B12 deficiency)
  • Effectiveness
    None (for Fatigue)
  • Effectiveness
    None (for Anemia)
  • Side effects
    None
  • Adherence
    Sometimes
  • Burden
    A little hard to take
Dosage: 2000 mcg Daily
Cost: < $25 monthly

Dec 29, 2010 (Started Sep 02, 2009)

  • Effectiveness
    Slight (for Fatigue)
  • Effectiveness
    Slight (for Anemia)
  • Effectiveness
    Moderate (for Vitamin B12 deficiency)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 500 mcg Daily
Cost: < $25 monthly

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