Review: could Vitamin b12 cause Sleepiness (Drowsiness)?
Summary: Sleepiness is found among people who take Vitamin b12, especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months, also take medication Lyrica, and have Multiple myeloma.
We study 2,481 people who have side effects while taking Vitamin b12 from FDA and social media. Among them, 27 have Sleepiness. Find out below who they are, when they have Sleepiness and more.
You are not alone: join a support group for people who take Vitamin b12 and have Sleepiness >>>
Vitamin b12 has active ingredients of cobalamin. It is often used in vitamin b12 deficiency. (latest outcomes from 2,982 Vitamin b12 users)
Sleepiness (excess sleeping) has been reported by people with depression, pain, high blood pressure, multiple sclerosis, stress and anxiety. (latest reports from 69,920 Sleepiness patients)
On Mar, 26, 2015: 2,481 people reported to have side effects when taking Vitamin b12. Among them, 27 people (1.09%) have Sleepiness.
Time on Vitamin b12 when people have Sleepiness * :
|< 1 month||1 - 6 months||6 - 12 months||1 - 2 years||2 - 5 years||5 - 10 years||10+ years |
Gender of people who have Sleepiness when taking Vitamin b12 * :
Age of people who have Sleepiness when taking Vitamin b12 * :
Severity of Sleepiness when taking Vitamin b12 ** :
|least||moderate||severe||most severe |
How people recovered from Sleepiness ** :
|while on the drug||after off the drug||not yet |
Top conditions involved for these people * :
- Multiple myeloma (3 people, 11.11%)
- Anxiety (3 people, 11.11%)
- Pain (2 people, 7.41%)
- Deficiency anaemia (2 people, 7.41%)
- High blood pressure (2 people, 7.41%)
Top co-used drugs for these people * :
- Lyrica (5 people, 18.52%)
- Synthroid (4 people, 14.81%)
- Thalomid (4 people, 14.81%)
- Folic acid (4 people, 14.81%)
- Lasix (3 people, 11.11%)
* Approximation only. Some reports may have incomplete information.
** Reports from social media are used.
How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.
Get connected: join our support group of vitamin b12 and sleepiness on
Do you have Sleepiness while taking Vitamin B12?
You are not alone! Join a mobile support group on :
- support group for people who take Vitamin b12 and have Sleepiness
- support group for people who take Vitamin b12
- support group for people who have Sleepiness
Drugs in real world that are associated with:
Could your condition cause:
- A study of side effects of Cellcept for a 21-year old woman with Thrombotic Thrombocytopenic Purpura. The patient has Chills (felling of cold), Lack Of Strength, Muscle Weakness, Weakness, Sweating - Excessive (abnormally increased sweating), Fever, Sleepiness (excess sleeping), Exhaustion, Fatigue, Lethargy, Tiredness, Weariness (feeling of tiredness), Diarrhoea, Nausea (feeling of having an urge to vomit)
- A study of side effects of Pristiq for a 33-year old woman with Anxiety Disorder. The patient has Agitation (state of anxiety or nervous excitement), Sleepy, Irritability, Mania Aggravated (a state of abnormally elevated or irritable mood)
- A study of side effects of Seroquel Xr for a 41-year old woman with Bipolar Ii Disorder. The patient has Sleepy, Abdominal Pain, Headache (pain in head)
- A study of side effects of Lithium Carbonate for a 67-year old woman with Bipolar Disorder. The patient has Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development), Dry Mouth, Weight Gain, Sleepiness - During The Day (excess sleeping during day time)
- A study of side effects of Vitamin B12 for a 29-year old woman with Vitamin B-12 Level. The patient has Dry Throat
Recent Vitamin b12 related drug comparison:
NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.
WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.
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