Carnitine and Vitamin d3 drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Carnitine (l - carnitine) and Vitamin d3 (cholecalciferol). Common drug interactions include low density lipoprotein increased among females and fatigue among males.

The phase IV clinical study analyzes what interactions people have when they take Carnitine and Vitamin d3. It is created by eHealthMe based on reports of 61 people who take the same drugs from the FDA, and is updated regularly.

What is Carnitine?

Carnitine has active ingredients of l - carnitine. eHealthMe is studying from 1,808 Carnitine users. Check the latest studies of Carnitine.

What is Vitamin d3?

Vitamin d3 has active ingredients of cholecalciferol. It is often used in heart health. eHealthMe is studying from 32,171 Vitamin d3 users. Check the latest studies of Vitamin d3.

On Jul, 16, 2026

61 people who take Carnitine and Vitamin d3 together, and have interactions are studied.

Carnitine and Vitamin d3 drug interactions.

What are the common drug interactions of Carnitine and Vitamin D3, by gender? *:

female:

Low density lipoprotein increased (cholesterol increased in blood)
Muscle twitching
Nocturia (the need to get up in the night to urinate)
Pain
Pneumonia
Rash
Road traffic accident
Somnolence (a state of near-sleep, a strong desire for sleep)
Swollen tongue (swelling of tongue)
Therapeutic response unexpected

male:

Fatigue (feeling of tiredness)
Muscular weakness (muscle weakness)
Hyperkalaemia (damage to or disease of the kidney)
Iron overload
Limb discomfort (discomfort in leg)
Mood altered (changes in mood)
Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)
Nasopharyngitis (inflammation of the nasopharynx)
Oedema (fluid collection in tissue)
Overdose

What are the common drug interactions of Carnitine and Vitamin D3, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

Cough
Nausea (feeling of having an urge to vomit)
Overdose
Vomiting

10-19:

n/a

20-29:

Anxiety
Hallucination (an experience involving the perception of something not present)
Insomnia (sleeplessness)
Nausea (feeling of having an urge to vomit)
Vomiting

30-39:

Alopecia (absence of hair from areas of the body)
Depressed mood
Dysarthria (speech disorder)
Fatigue (feeling of tiredness)
Hair colour changes
Muscle spasms (muscle contraction)
Overdose
Pain
Rash
Skin papilloma (a general medical term for a tumour of the skin or mucous membrane with finger-like projections)

40-49:

Abdominal distension
Abdominal pain
Abnormal faeces (abnormal stool)
Asthma
Blood glucose increased
Blood triglycerides increased
Burning sensation
Carnitine deficiency
Chest pain
Diarrhoea

50-59:

Back pain
Balance disorder
Blood testosterone decreased
Body temperature decreased
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Burning sensation
Chest discomfort
Chest pain
Coagulopathy (blood's ability to clot is impaired)
Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving)

60+:

Pruritus (severe itching of the skin)
Anaemia (lack of blood)
Ankle fracture
Bone fragmentation
Cardiac disorder
Cardiac failure congestive
Cellulitis (infection under the skin)
Decreased appetite
Diarrhoea
Ecchymosis (a discoloration of the skin resulting from bleeding underneath)

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 12 people, 19.67%
Pain: 8 people, 13.11%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 6 people, 9.84%
Primary Myelofibrosis (primary disorder of the bone marrow): 5 people, 8.20%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 8.20%
Insomnia (sleeplessness): 5 people, 8.20%
High Blood Pressure: 5 people, 8.20%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 4 people, 6.56%
High Blood Cholesterol: 4 people, 6.56%
Gait Disturbance: 4 people, 6.56%

* Approximation only. Some reports may have incomplete information.

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