What is Vitamin B12 Sublingual (cyanocobalamin)?

Category: Supplements

Most popular types: Nature's Bounty Vitamin B-12 Sublingual No Shot B-12 Spring Valley Sublingual B-12 Show all


See also: Dr. Mercola Sublingual B12

Vitamin B12 is also known as cyanocobalamin. Vitamin B12 is important for growth, cell reproduction, blood formation, and protein and tissue synthesis. It is used to treat vitamin B12 deficiency in people with pernicious anemia and other conditions.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Fatigue 85 22
General health 62 25
Multiple sclerosis 9 1
Amyotrophic lateral sclerosis 8 6
Increase effect of another treatment 6 0

Show all 43 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 Percentage
Severe 1
Moderate 1
Mild 7
None 62

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

Side effect Patients Percentage
Acne breakout 1
Nausea if taken on empty stomach 1
Urinary incontinence 1


Based on patients currently taking Vitamin B12 Sublingual (cyanocobalamin)

Dosage Patients Percentage
1 mg daily 2
2 mg daily 2
2.5 mg daily 2
250 mcg daily 2
1 mg every other day 1
2 mg twice daily 1
1000 mcg daily 1
1200 mcg daily 1
2500 mcg daily 1
3000 mcg daily 1

See all 13 dosages

Why patients stopped taking Vitamin B12 Sublingual (cyanocobalamin)

Multiple reasons could be selected

Reason Patients Percentage
Other 25
Did not seem to work 11
Doctor's advice 8
Expense 7
Course of treatment ended 4
Personal research 3
Side effects too severe 2
See all 53 patients who've stopped taking Vitamin B12 Sublingual (cyanocobalamin)


Currently taking Vitamin B12 Sublingual (cyanocobalamin)

Duration Patients Percentage
6 months - 1 year 1
2 - 5 years 4
5 - 10 years 7
10 years or more 5

Stopped taking Vitamin B12 Sublingual (cyanocobalamin)

Duration Patients Percentage
Less than 1 month 4
1 - 6 months 15
6 months - 1 year 15
1 - 2 years 10
2 - 5 years 9
5 - 10 years 1
Adherence Evaluations Percentage
Always 52
Usually 13
Sometimes 4
Never taken as prescribed 2
Burden Evaluations Percentage
Very hard to take 0
Somewhat hard to take 3
A little hard to take 8
Not at all hard to take 60
Cost per month
Cost per month Evaluations Percentage
$200+ 0
$100-199 0
$50-99 0
$25-49 1
< $25 44
Not specified 26
Last updated:

8 patient evaluations for Vitamin B12 Sublingual (cyanocobalamin)

Feb 4, 2014 (Started Feb 15, 2010)

  • Effectiveness
    Moderate (for mild depression)
  • Side effects
  • Adherence
  • Burden
    Somewhat hard to take
Advice & Tips: The sub-lingual tablets are nice as far as being able to take it the moment I remembered, without having the barrier of needing to get a glass of water.

Mar 17, 2012 (Started Feb 15, 2010)

  • Effectiveness
    Slight (for mild depression)
  • Side effects
  • Adherence
  • Burden
    Not at all hard to take
Dosage: 1000 mcg Daily

  • 0 helpful marks

Jan 15, 2014 (Started Feb 01, 2011)

  • Effectiveness
    None (for vitamin B12 deficiency)
  • Effectiveness
    None (for fatigue)
  • Effectiveness
    None (for General health)
  • Side effects
  • Adherence
  • Burden
    Not at all hard to take
Dosage: 2000 mcg Daily
Advice & Tips: Eat iron rich foods. Get plenty of fluids and rest. If you have low iron levels -- and -- low blood pressure keep legs elevated when possible. When sitting and standing for long periods blood tends to pool around your waist and upper thighs so it's important to help your body to regulate the blood flow. I learned this in Yoga and it was so interesting because I naturally have an inclination to put my feet up whenever possible. (In the car as a passenger I put them up on the dash, watching TV or relaxing reading a book or in social situations I look for anything with an ottoman or a couch where I can lay semi-reclined. (My friends know me well enough that it isn't a problem. If you are at a stranger's house or restaurant, put your feet on a rung of a chair not being used but I have also put my feet up on an unused chair at the table and explained to people (the waitress, people, etc.) why I need to do this. Also: I recumbent using "Vitalyte" for a great, low sugar, no colorants form adding to your water. It is in powdered form so you can control the amount you think is best for you.
Cost: < $25 monthly

  • 0 helpful marks

Sep 30, 2013 (Started Dec 23, 2010)

  • Effectiveness
    Slight (for fatigue)
  • Effectiveness
    Slight (for General health)
  • Effectiveness
    Slight (for vitamin B12 deficiency)
  • Effectiveness
    Slight (for bariatric surgery)
  • Effectiveness
    Slight (for gastric bypass)
  • Side effects
  • Adherence
  • Burden
    Not at all hard to take

  • 0 helpful marks
Last updated:
Showing 3 of 8 patient evaluations for Vitamin B12 Sublingual (cyanocobalamin)