Thiamine and Lenvatinib drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Thiamine (thiamine (vitamin b1)) and Lenvatinib (lenvatinib). Common drug interactions include hepatic encephalopathy among females and hypotension among males.

The phase IV clinical study analyzes what interactions people have when they take Thiamine and Lenvatinib. It is created by eHealthMe based on reports of 30 people who take the same drugs from the FDA, and is updated regularly.

What is Thiamine?

Thiamine has active ingredients of thiamine (vitamin b1). eHealthMe is studying from 11,036 Thiamine users. Check the latest studies of Thiamine.

What is Lenvatinib?

Lenvatinib has active ingredients of lenvatinib. eHealthMe is studying from 3,587 Lenvatinib users. Check the latest studies of Lenvatinib.

On Aug, 04, 2026

30 people who take Thiamine and Lenvatinib together, and have interactions are studied.

Thiamine and Lenvatinib drug interactions.

What are the common drug interactions of Thiamine and Lenvatinib, by gender? *:

female:

Hepatic encephalopathy (spectrum of neuropsychiatric abnormalities in patients with liver failure)
Embolism (obstruction of an artery, typically by a clot of blood or an air bubble)
Epistaxis (bleed from the nose)
Syncope (loss of consciousness with an inability to maintain postural tone)
Contrast media reaction (reaction associated with the use of intravenous contrast material during radiology)
Opsoclonus myoclonus (a rare neurological disorder of unknown causes which appears to be the result of an autoimmune process involving the nervous system)
Anaemia (lack of blood)
Angina pectoris (chest pain due to ischemia of the heart muscle)
Diarrhoea
Dyspnoea (difficult or laboured respiration)

male:

Hypotension (abnormally low blood pressure)
Anaemia (lack of blood)
Hypertension (high blood pressure)
Mucosal inflammation (infection of mucous membrane)
Blood alkaline phosphatase increased
Blood bilirubin increased
Blood creatinine increased
Glomerular filtration rate decreased
Hypoalbuminaemia (levels of albumin in blood serum are abnormally low)
Mastitis (inflammation of breast)

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

0-1:

n/a

2-9:

n/a

10-19:

Anaemia (lack of blood)

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development)
Anal abscess
Anal fistula
Hypokalaemia (low potassium)
Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
Hypotension (abnormally low blood pressure)
Infection
Nausea (feeling of having an urge to vomit)
Hypertension (high blood pressure)
Blood alkaline phosphatase increased

60+:

Hepatic encephalopathy (spectrum of neuropsychiatric abnormalities in patients with liver failure)
Embolism (obstruction of an artery, typically by a clot of blood or an air bubble)
Angina pectoris (chest pain due to ischemia of the heart muscle)
Diarrhoea
Dyspnoea (difficult or laboured respiration)
Escherichia urinary tract infection (urinary tract infection by escherichia coli)
Hyperkalaemia (damage to or disease of the kidney)
Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
Epistaxis (bleed from the nose)
Rectal abscess (pus in rectum)

What are the existing conditions these people have? *

Hepatocellular Carcinoma (liver cancer): 15 people, 50.00%
Pain: 11 people, 36.67%
Adverse Event: 5 people, 16.67%
Nervous System Disorder (a general class of medical conditions affecting the nervous system): 3 people, 10.00%
Nasopharyngeal Cancer (cancer of nasopharynx): 3 people, 10.00%
Ascites (accumulation of fluid in the abdominal cavity): 3 people, 10.00%
Renal Cell Carcinoma (a kidney cancer): 2 people, 6.67%
Ovarian Cancer Recurrent (reoccurrence of ovary cancer): 2 people, 6.67%
Non-Small Cell Lung Cancer Metastatic (type of epithelial lung cancer spreads to other parts): 2 people, 6.67%
Folate Deficiency (lack of folic acid): 2 people, 6.67%

* Approximation only. Some reports may have incomplete information.

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