Methylcobalamin and Multivitamin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Methylcobalamin (vitamin b12) and Multivitamin (ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e). Common drug interactions include fatigue among females and chills among males.

The phase IV clinical study analyzes what interactions people have when they take Methylcobalamin and Multivitamin. It is created by eHealthMe based on reports of 20 people who take the same drugs from the FDA, and is updated regularly.

What is Methylcobalamin?

Methylcobalamin has active ingredients of vitamin b12. It is often used in vitamin b12 deficiency. eHealthMe is studying from 3,184 Methylcobalamin users. Check the latest studies of Methylcobalamin.

What is Multivitamin?

Multivitamin has active ingredients of ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e. It is often used in vitamin supplementation. eHealthMe is studying from 83,597 Multivitamin users. Check the latest studies of Multivitamin.

On Jul, 11, 2026

20 people who take Methylcobalamin and Multivitamin together, and have interactions are studied.

Methylcobalamin and Multivitamin drug interactions.

What are the common drug interactions of Methylcobalamin and Multivitamin, by gender? *:

female:

Fatigue (feeling of tiredness)
Hypoaesthesia (reduced sense of touch or sensation)
Muscle spasms (muscle contraction)
Administration site pain
Agoraphobia (extreme or irrational fear of crowded spaces or enclosed public places)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anaemia (lack of blood)
Anxiety
Aphasia (damage to the parts of the brain that control language)
Arrhythmia (irregular heartbeat)

male:

Chills (felling of cold)
Depression
Fatigue (feeling of tiredness)
Pain
Pyrexia (fever)

What are the common drug interactions of Methylcobalamin and Multivitamin, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Agoraphobia (extreme or irrational fear of crowded spaces or enclosed public places)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anxiety
Aphasia (damage to the parts of the brain that control language)
Bruxism (habitual grinding of the teeth, typically during sleep)
Confusional state
Crying
Dyspepsia (indigestion)
Dyspnoea (difficult or laboured respiration)
Dysstasia (difficulty in standing)

30-39:

n/a

40-49:

Bradycardia (abnormally slow heart action)
Dizziness

50-59:

n/a

60+:

Hypoaesthesia (reduced sense of touch or sensation)
Weight decreased
Fatigue (feeling of tiredness)
Fear
Full blood count decreased
Haematochezia (passage of stools containing blood)
Haemoglobin decreased
Hallucination, visual (seeing things that aren't there)
Hypersensitivity
Insomnia (sleeplessness)

What are the existing conditions these people have? *

Cataplexy (loss of muscle tone accompanied by full conscious awareness): 3 people, 15.00%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 15.00%
Pain: 3 people, 15.00%
Swelling: 2 people, 10.00%
Tinnitus (a ringing in the ears): 1 person, 5.00%
Fabry's Disease (build up of a particular type of fat, called globotriaosylceramide, in the body's cells): 1 person, 5.00%
High Blood Pressure: 1 person, 5.00%
Herpes Simplex (herpes simplex is a common viral infection): 1 person, 5.00%
Hallucinations (sensations that appear real but are created by your mind): 1 person, 5.00%
General Symptom: 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

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