Montelukast sodium and Levothroid drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Montelukast sodium (montelukast sodium) and Levothroid (levothyroxine sodium). Common drug interactions include drug ineffective among females and abdominal discomfort among males.

The phase IV clinical study analyzes what interactions people have when they take Montelukast sodium and Levothroid. It is created by eHealthMe based on reports of 23 people who take the same drugs from the FDA, and is updated regularly.

What is Montelukast sodium?

Montelukast sodium has active ingredients of montelukast sodium. It is often used in asthma. eHealthMe is studying from 26,093 Montelukast sodium users. Check the latest studies of Montelukast sodium.

What is Levothroid?

Levothroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 8,974 Levothroid users. Check the latest studies of Levothroid.



On Jul, 17, 2026

23 people who take Montelukast sodium and Levothroid together, and have interactions are studied.

Montelukast sodium and Levothroid drug interactions.

What are the common drug interactions of Montelukast Sodium and Levothroid, by gender? *:

female:

  1. Drug ineffective
  2. Cardiogenic shock (inadequate circulation of blood)
  3. Fungal infection
  4. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
  5. Pyrexia (fever)
  6. Respiratory failure (inadequate gas exchange by the respiratory system)
  7. Shock haemorrhagic (a life-threatening condition with symptoms like low blood pressure, weakness, shallow breathing, cold, clammy skin due to excess bleeding)
  8. Abdominal hernia
  9. Back disorder
  10. Bone loss

male:

  1. Abdominal discomfort
  2. Adverse drug reaction
  3. Mouth ulceration (mouth ulcers)
  4. Oropharyngeal pain
  5. Palpitations (feelings or sensations that your heart is pounding or racing)
  6. Peritonitis (inflammation of the peritoneum, the thin tissue that lines the inner wall of the abdomen and covers most of the abdominal organs)
  7. Platelet count decreased
  8. Pyrexia (fever)
  9. Somnolence (a state of near-sleep, a strong desire for sleep)
  10. Urosepsis (secondary infection that occurs when a urinary tract infection spreads to the bloodstream)

What are the common drug interactions of Montelukast Sodium and Levothroid, 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:

  1. Constipation
  2. Cough
  3. Drug-induced liver injury (diseases of the liver that are caused by physician-prescribed medications)
  4. Malaise (a feeling of general discomfort or uneasiness)
  5. Pyrexia (fever)

60+:

  1. Cardiogenic shock (inadequate circulation of blood)
  2. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
  3. Fungal infection
  4. Gingival pain (gum pain)
  5. Haemorrhagic anaemia (anaemia due to excessive bleeding)
  6. Insomnia (sleeplessness)
  7. Loss of consciousness
  8. Mouth ulceration (mouth ulcers)
  9. Nausea (feeling of having an urge to vomit)
  10. Oropharyngeal pain

What are the existing conditions these people have? *

  1. Multiple Myeloma (cancer of the plasma cells): 9 people, 39.13%
  2. Type 2 Diabetes: 2 people, 8.70%
  3. Pain: 2 people, 8.70%
  4. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 8.70%
  5. Iron Deficiency: 2 people, 8.70%
  6. Ill-Defined Disorder: 2 people, 8.70%
  7. Hyperkalemia (damage to or disease of the kidney): 2 people, 8.70%
  8. Fever: 2 people, 8.70%
  9. Diabetes: 2 people, 8.70%
  10. Cough: 2 people, 8.70%

* Approximation only. Some reports may have incomplete information.

Do you take Montelukast sodium and Levothroid?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Montelukast sodium and Levothroid:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Montelukast sodium:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all side effects of Levothroid:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Montelukast sodium and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Levothroid and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on montelukast sodium and levothyroxine sodium (the active ingredients of Montelukast sodium and Levothroid, respectively), and Montelukast sodium and Levothroid (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

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