Singulair and Sprintec drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Singulair (montelukast sodium) and Sprintec (ethinyl estradiol; norgestimate). Common drug interactions include palpitations among females and angina pectoris among males.

The phase IV clinical study analyzes what interactions people have when they take Singulair and Sprintec. It is created by eHealthMe based on reports of 184 people who take the same drugs from the FDA, and is updated regularly.

What is Singulair?

Singulair has active ingredients of montelukast sodium. It is often used in asthma. eHealthMe is studying from 129,752 Singulair users. Check the latest studies of Singulair.

What is Sprintec?

Sprintec has active ingredients of ethinyl estradiol; norgestimate. It is often used in birth control. eHealthMe is studying from 4,397 Sprintec users. Check the latest studies of Sprintec.



On Aug, 10, 2026

184 people who take Singulair and Sprintec together, and have interactions are studied.

Singulair and Sprintec drug interactions.

What are the common drug interactions of Singulair and Sprintec, by gender? *

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

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What are the existing conditions these people have? *

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* Approximation only. Some reports may have incomplete information.

Do you take Singulair and Sprintec?

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Related studies:

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

Browse all drug interactions of Singulair and Sprintec:

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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 Singulair:

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Browse all side effects of Sprintec:

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Browse all interactions between Singulair 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 Sprintec 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 ethinyl estradiol; norgestimate (the active ingredients of Singulair and Sprintec, respectively), and Singulair and Sprintec (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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