Euthyrox and Remeron drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Euthyrox (levothyroxine sodium) and Remeron (mirtazapine). Common drug interactions include bradypnoea among females and pancreatitis among males.

The phase IV clinical study analyzes what interactions people have when they take Euthyrox and Remeron. It is created by eHealthMe based on reports of 44 people who take the same drugs from the FDA, and is updated regularly.

What is Euthyrox?

Euthyrox has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 8,740 Euthyrox users. Check the latest studies of Euthyrox.

What is Remeron?

Remeron has active ingredients of mirtazapine. It is often used in depression. eHealthMe is studying from 26,474 Remeron users. Check the latest studies of Remeron.

On Jul, 07, 2026

44 people who take Euthyrox and Remeron together, and have interactions are studied.

What are the common drug interactions of Euthyrox and Remeron, by gender? *:

female:

Bradypnoea (an abnormally slow respiratory rate)
Cutaneous sarcoidosis (a multisystem disease with skin lesion)
Dyspnoea (difficult or laboured respiration)
Hallucination (an experience involving the perception of something not present)
Muscle spasms (muscle contraction)
Pulmonary sarcoidosis (growth of tiny collections of inflammatory cells in lungs)
Serotonin syndrome (occurs when two drugs that affect the body's level of serotonin are taken together at the same time)
Abdominal discomfort
Liver disorder (liver diseases)
Mixed liver injury

male:

Pancreatitis (inflammation of pancreas)
Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
Metabolic acidosis (body produces too much acid, or when the kidneys are not removing enough acid from the body)
Mucosal inflammation (infection of mucous membrane)
Pemphigoid (tense blisters on the skin)
Surgery
Thyroiditis (inflammation of thyroid gland)
Arachnoiditis (neuropathic disease caused by inflammation of the arachnoid)
Haemochromatosis (body to absorb more iron than usual from food)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Pancreatitis (inflammation of pancreas)

30-39:

n/a

40-49:

Arachnoiditis (neuropathic disease caused by inflammation of the arachnoid)
Weight decreased
Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving)
Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
Electrocardiogram qt prolonged
Poisoning
Surgery
Tachycardia (a heart rate that exceeds the range of 100 beats/min)

50-59:

Bradypnoea (an abnormally slow respiratory rate)
Cutaneous sarcoidosis (a multisystem disease with skin lesion)
Hallucination (an experience involving the perception of something not present)
Muscle spasms (muscle contraction)
Pulmonary sarcoidosis (growth of tiny collections of inflammatory cells in lungs)
Serotonin syndrome (occurs when two drugs that affect the body's level of serotonin are taken together at the same time)
Haemochromatosis (body to absorb more iron than usual from food)
Sleep apnoea syndrome (a sleep-related disorder in which the effort to breathe is diminished or absent)
Dyspnoea (difficult or laboured respiration)
Seizure (abnormal excessive or synchronous neuronal activity in the brain)

60+:

Mixed liver injury
Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
Blood lactate dehydrogenase increased
Dehydration (dryness resulting from the removal of water)
Dermatitis (inflammation of the skin resulting from direct irritation by an external agent or an allergic reaction to it)
Diarrhoea
Dysphagia (a condition in which swallowing is difficult or painful)
Dyspnoea (difficult or laboured respiration)
Fatigue (feeling of tiredness)
Hypokalaemia (low potassium)

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 11.36%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 3 people, 6.82%

* Approximation only. Some reports may have incomplete information.

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