Letrozole and Tapazole drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Letrozole (letrozole) and Tapazole (methimazole). Common drug interactions include asthenia among females.

The phase IV clinical study analyzes what interactions people have when they take Letrozole and Tapazole. It is created by eHealthMe based on reports of 13 people who take the same drugs from the FDA, and is updated regularly.

What is Letrozole?

Letrozole has active ingredients of letrozole. It is often used in breast cancer. eHealthMe is studying from 54,125 Letrozole users. Check the latest studies of Letrozole.

What is Tapazole?

Tapazole has active ingredients of methimazole. It is often used in hyperthyroidism. eHealthMe is studying from 2,477 Tapazole users. Check the latest studies of Tapazole.

On Jul, 16, 2026

13 people who take Letrozole and Tapazole together, and have interactions are studied.

Letrozole and Tapazole drug interactions.

What are the common drug interactions of Letrozole and Tapazole, by gender? *:

female:

Asthenia (weakness)
Decreased appetite
Choking sensation (feeling of obstruction in respiratory system)
Connective tissue disorder (any disease that has the connective tissues of the body)
Cutaneous vasculitis (an inflammatory process affecting the vessel wall that leads to its damage)
Cystitis (inflammation of the wall of the bladder)
Dizziness
Fall
Feeling drunk
Fluid retention (an abnormal accumulation of fluid in the blood)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

Influenza
Meningioma (a diverse set of tumours arising from the meninges)
Neutropenia (an abnormally low number of neutrophils)
Oesophagitis (inflammation of oesophagus)
Osteoarthritis (a joint disease caused by cartilage loss in a joint)
Osteolysis (dissolution of bone)
Second primary malignancy (after getting cure a cancer, a new cancer development)
Thyroid mass

60+:

Asthenia (weakness)
Decreased appetite
Connective tissue disorder (any disease that has the connective tissues of the body)
Cutaneous vasculitis (an inflammatory process affecting the vessel wall that leads to its damage)
Cystitis (inflammation of the wall of the bladder)
Dizziness
Fall
Feeling drunk
Fluid retention (an abnormal accumulation of fluid in the blood)
Gingivitis (inflammation of gums)

What are the existing conditions these people have? *

Breast Cancer Metastatic: 8 people, 61.54%
High Blood Pressure: 3 people, 23.08%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 2 people, 15.38%
Neoplasm Malignant (cancer tumour): 2 people, 15.38%
High Blood Cholesterol: 2 people, 15.38%
Toxic Nodular Goitre (a thyroid gland that contains autonomously functioning thyroid nodules, with resulting excess thyroid hormone secretion): 1 person, 7.69%
Thyroid Diseases: 1 person, 7.69%
Stress And Anxiety: 1 person, 7.69%
Neuropathy Peripheral (surface nerve damage): 1 person, 7.69%
Depression: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

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