Nitrofurantoin and Hypothyroidism - a phase IV clinical study of FDA data

Summary:

Hypothyroidism is reported as a side effect among people who take Nitrofurantoin (nitrofurantoin, macrocrystalline), especially for people who are female, 60+ old, also take Protonix, and have Stress and anxiety.

The phase IV clinical study analyzes which people have Hypothyroidism when taking Nitrofurantoin. It is created by eHealthMe based on reports of 4,140 people who have side effects when taking Nitrofurantoin from the FDA, and is updated regularly.

What is Nitrofurantoin?

Nitrofurantoin has active ingredients of nitrofurantoin, macrocrystalline. It is often used in urinary tract infection. eHealthMe is studying from 4,840 Nitrofurantoin users. Check the latest studies of Nitrofurantoin.

What is Hypothyroidism?

Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development) is found to be associated with 1,617 drugs and 2,600 conditions by eHealthMe. Check the latest studies of Hypothyroidism.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Sep, 04, 2026

4,140 people reported to have side effects when taking Nitrofurantoin.
Among them, 25 people (0.6%) have Hypothyroidism.

Could Nitrofurantoin cause Hypothyroidism?

Among these 25 people:

What is the gender of people who have Hypothyroidism when taking Nitrofurantoin? *

female: 76 %
male: 24 %

What is the age of people who have Hypothyroidism when taking Nitrofurantoin? *

What are other drugs people take besides Nitrofurantoin? *

What are other side effects people have besides Hypothyroidism? *

Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 11 people, 44.00%
Fall: 10 people, 40.00%
Pain: 9 people, 36.00%
Dyspnea (difficult or laboured breathing): 7 people, 28.00%
Hair Loss: 7 people, 28.00%
Multiple Sclerosis Relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 7 people, 28.00%
Diabetes: 7 people, 28.00%
High Blood Pressure: 7 people, 28.00%
Movement Disorder (neurological syndromes where they may be excess of movement or a paucity of movement that is not connected to weakness): 6 people, 24.00%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 6 people, 24.00%

What are the existing conditions these people have? *

Stress And Anxiety: 13 people, 52.00%
Pain: 10 people, 40.00%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 9 people, 36.00%
Sleep Disorder: 8 people, 32.00%
Multiple Sclerosis Relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 7 people, 28.00%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 6 people, 24.00%
Birth Control: 5 people, 20.00%
Depression: 5 people, 20.00%
High Blood Pressure: 5 people, 20.00%
Infection: 5 people, 20.00%

* Approximation only. Some reports may have incomplete information.

Do you take Nitrofurantoin and have Hypothyroidism?

- Check whether Hypothyroidism is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Nitrofurantoin:

Nitrofurantoin (4,840 reports)

Hypothyroidism treatments and more:

Hypothyroidism (168,071 reports)

How severe was Hypothyroidism and when was it recovered:

Hypothyroidism in Nitrofurantoin

Expand to all the drugs that have ingredients of nitrofurantoin, macrocrystalline:

Hypothyroidism and drugs with ingredients of nitrofurantoin, macrocrystalline (40 reports)

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 Nitrofurantoin:

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 the drugs that are associated with Hypothyroidism:

Hypothyroidism (1,617 drugs)

Browse all the conditions that are associated with Hypothyroidism:

Hypothyroidism (2,600 conditions)

Related publications that referenced our studies

Ezeji GC, Inoue T, Bahtiyar G, Sacerdote A, "Hallucinations associated with miglitol use in a patient with chronic kidney disease and hypothyroidism", BMJ case reports, 2015 Feb .
Ezeji GC, Inoue T, Bahtiyar G, Sacerdote A, "Hallucinations associated with miglitol use in a patient with chronic kidney disease and hypothyroidism", BMJ case reports, 2015 Feb .

How the study uses the data?

The study uses data from the FDA. It is based on nitrofurantoin, macrocrystalline (the active ingredients of Nitrofurantoin) and Nitrofurantoin (the brand name). 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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