What is Vitamin B12 Injection?

Category: Prescription Drugs

Most popular types: Medivitan

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Vitamin B-12 via intramuscular or deep subcutaneous injection is used to treat pernicious anemia; dietary deficiencies due to malabsorption diseases, inadequate secretion of intrinsic factor, and inadequate utilization; for increased requirements due to pregnancy.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Fatigue 140 61
Vitamin B12 Deficiency 136 56
Vitamin B12 deficiency 71 29
General health 35 14
Pernicious Anemia 34 8
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome 24 12

Show all 54 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 6
Mild 18
None 142

Commonly reported side effects and conditions associated with Vitamin B12 Injection

Side effect Patients
Injection site bruising 6
Injection site pain 3
Bruising 2
Jittery feeling 2
Diarrhea 1
Headaches 1

Show all 19 reported side effects

Dosages

Based on patients currently taking Vitamin B12 Injection

Dosage Patients
1 mg monthly 24
1 mg weekly 6
1 mg every other week 5
1 mg every 3 months 3
1 mg every 8 weeks 3
1 other monthly 3
1 mg m,w,f 2
1 mg daily 2
25 mg daily 2
1 mg every 3 weeks 1

See all 17 dosages

Why patients stopped taking Vitamin B12 Injection

Multiple reasons could be selected

Reason Patients
Course of treatment ended 41
Other 36
Did not seem to work 23
Doctor's advice 19
Expense 12
Change in health plan coverage 1
Personal research 1
See all 120 patients who’ve stopped taking Vitamin B12 Injection

Duration

Currently taking Vitamin B12 Injection

Duration Patients
1 - 6 months 1
6 months - 1 year 6
1 - 2 years 14
2 - 5 years 16
5 - 10 years 17
10 years or more 5

Stopped taking Vitamin B12 Injection

Duration Patients
Less than 1 month 21
1 - 6 months 32
6 months - 1 year 19
1 - 2 years 18
2 - 5 years 21
5 - 10 years 5
10 years or more 4
Adherence
Adherence Evaluations
Always 123
Usually 30
Sometimes 8
Never taken as prescribed 5
Burden
Burden Evaluations
Very hard to take 7
Somewhat hard to take 42
A little hard to take 58
Not at all hard to take 59
Cost per month
Cost per month Evaluations
$200+ 3
$100-199 3
$50-99 6
$25-49 13
< $25 70
Not specified 71

What people switch to and from

Patients started taking Vitamin B12 Injection after stopping:

Treatment Patients
Vitamin B12 Prescription (cyanocobalamin) 2
Methotrexate (Metoject) 1

Patients stopped taking Vitamin B12 Injection and switched to:

Treatment Patients
Vitamin B12 Prescription (cyanocobalamin) 2
Methotrexate (Metoject) 1
Last updated:

28 patient evaluations for Vitamin B12 Injection

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

margie99
70573 thumb
margie99
Sex: F
Data Quality: 3 stars
On
Mouth/throat: mild
Arms: mild
Chest: mild
Legs: moderate
I am: g
I have:
Parkinson's

See margie99's full Vitamin B12 Injection history

Oct 10, 2016 (Started Jul 30, 2012)

  • Effectiveness
    Major (for Vitamin B12 Deficiency)
  • Effectiveness
    Major (for Fatigue)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 1 mg Monthly
Cost: < $25 monthly

Sep 14, 2016 (Started Jul 30, 2012)

  • Effectiveness
    Moderate (for Vitamin B12 Deficiency)
  • Effectiveness
    Moderate (for Fatigue)
  • Side effects
    Mild (Soreness)
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 1 mg Monthly
Advice & Tips: No change
Cost: < $25 monthly

Jul 13, 2016 (Started Jul 30, 2012)

  • Effectiveness
    Moderate (for Vitamin B12 Deficiency)
  • Effectiveness
    Major (for Fatigue)
  • Side effects
    Mild (Soreness)
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 1 mg Monthly
Advice & Tips: Helps with fatigue. Soreness, but relaxing the arm really helps.
Cost: < $25 monthly

Sep 16, 2015 (Started Jul 30, 2012)

  • Effectiveness
    Moderate (for Vitamin B12 Deficiency)
  • Effectiveness
    Major (for Fatigue)
  • Side effects
    Mild (Soreness)
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 1 mg Monthly
Advice & Tips: Sometimes it gets sore even when relaxed
Cost: < $25 monthly

Jul 15, 2015 (Started Jul 30, 2012)

  • Effectiveness
    Major (for Vitamin B12 Deficiency)
  • Effectiveness
    Major (for Fatigue)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 1 mg Monthly
Advice & Tips: Relax area where injection is placed, so it doesn't make the area sore.
Cost: < $25 monthly

  • 0 helpful marks
suzzie
18770 thumb
suzzie
Sex: F
Data Quality: 3 stars
Sensation: Severe
Overall: Moderate
Cognition: moderate
Vision: moderate
Speech: moderate
Swallowing: moderate
Upper limb: moderate
Walking: severe
I am: vg
I have:
MS

See suzzie's full Vitamin B12 Injection history

Sep 26, 2016 (Started Oct 05, 2011)

  • Effectiveness
    Slight (for Vitamin B12 Deficiency)
  • Effectiveness
    Slight (for Fatigue)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 mg Monthly

  • 0 helpful marks
lazaras
12975 thumb
lazaras
Gender: M
Data Quality: 3 stars
Pain: Most
Fatigue: Most
Sleep: Some
Stiffness: All
function: Some
external_stress: Little
Stickman: most
Description:M52y
FM:9y Dx
CFS:8y Dx
I am: n
I have:
Fibromyalgia

See lazaras's full Vitamin B12 Injection history

Oct 9, 2015 (Started Aug 01, 2015)

  • Effectiveness
    Slight (for Vitamin B12 Deficiency)
  • Effectiveness
    Slight (for Fatigue)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Somewhat hard to take
Dosage: 1 mg Monthly

  • 0 helpful marks
Last updated:
Showing 3 of 28 patient evaluations for Vitamin B12 Injection