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Synthroid and Jalyn drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Synthroid (levothyroxine sodium) and Jalyn (dutasteride; tamsulosin hydrochloride). Common drug interactions include bacterial infection among females and diarrhoea among males.

The phase IV clinical study analyzes what interactions people have when they take Synthroid and Jalyn. It is created by eHealthMe based on reports of 32 people who take the same drugs from the FDA, and is updated regularly.

What is Synthroid?

Synthroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 249,202 Synthroid users. Check the latest studies of Synthroid.

What is Jalyn?

Jalyn has active ingredients of dutasteride; tamsulosin hydrochloride. It is often used in prostate examination abnormal. eHealthMe is studying from 1,168 Jalyn users. Check the latest studies of Jalyn.

On Aug, 12, 2026

32 people who take Synthroid and Jalyn together, and have interactions are studied.

Synthroid and Jalyn drug interactions.

What are the common drug interactions of Synthroid and Jalyn, by gender? *:

female:

  1. Bacterial infection
  2. Leukaemia (blood or bone marrow cancer)
  3. Wound

male:

  1. Diarrhoea
  2. Rash
  3. Cough
  4. Dysstasia (difficulty in standing)
  5. Eating disorder
  6. Fall
  7. Fracture
  8. Hypersensitivity
  9. Hypoacusis (loss of hearing)
  10. Hypoaesthesia (reduced sense of touch or sensation)

What are the common drug interactions of Synthroid and Jalyn, 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:

n/a

60+:

  1. Rash
  2. Urinary incontinence (inability to control the flow of urine and involuntary urination)
  3. Diarrhoea
  4. Dysstasia (difficulty in standing)
  5. Eating disorder
  6. Fall
  7. Fracture
  8. Hypersensitivity
  9. Hypoacusis (loss of hearing)
  10. Hypoaesthesia (reduced sense of touch or sensation)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 15.62%
  2. Thyroid Diseases: 3 people, 9.38%
  3. Sinusitis (inflammation of sinus): 3 people, 9.38%
  4. High Blood Pressure: 3 people, 9.38%
  5. Acute Myeloid Leukaemia (acute cancer in which the bone marrow makes abnormal myeloblasts): 3 people, 9.38%
  6. Type 2 Diabetes: 2 people, 6.25%
  7. Pain: 2 people, 6.25%
  8. Nausea And Vomiting: 2 people, 6.25%
  9. Nausea (feeling of having an urge to vomit): 2 people, 6.25%
  10. Multiple Myeloma (cancer of the plasma cells): 2 people, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Synthroid and Jalyn?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Browse all drug interactions of Synthroid and Jalyn:

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 Synthroid:

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 Jalyn:

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 Synthroid 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 Jalyn 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

How the study uses the data?

The study uses data from the FDA. It is based on levothyroxine sodium and dutasteride; tamsulosin hydrochloride (the active ingredients of Synthroid and Jalyn, respectively), and Synthroid and Jalyn (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

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