Nuedexta and Premarin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Nuedexta (dextromethorphan hydrobromide; quinidine sulfate) and Premarin (estrogens, conjugated). Common drug interactions include cognitive disorder among females and drug ineffective among males.

The phase IV clinical study analyzes what interactions people have when they take Nuedexta and Premarin. It is created by eHealthMe based on reports of 13 people who take the same drugs from the FDA, and is updated regularly.

What is Nuedexta?

Nuedexta has active ingredients of dextromethorphan hydrobromide; quinidine sulfate. eHealthMe is studying from 3,781 Nuedexta users. Check the latest studies of Nuedexta.

What is Premarin?

Premarin has active ingredients of estrogens, conjugated. It is often used in hormone replacement therapy. eHealthMe is studying from 99,630 Premarin users. Check the latest studies of Premarin.



On Jul, 10, 2026

13 people who take Nuedexta and Premarin together, and have interactions are studied.

Nuedexta and Premarin drug interactions.

What are the common drug interactions of Nuedexta and Premarin, by gender? *:

female:

  1. Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving)
  2. Depression
  3. Dizziness
  4. Fall
  5. Fatigue (feeling of tiredness)
  6. Functional gastrointestinal disorder (functional problem in separate organs of gastrointestinal system)
  7. Gait disturbance
  8. Hypoaesthesia (reduced sense of touch or sensation)
  9. Mobility decreased (ability to move is reduced)
  10. Multiple sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)

male:

  1. Drug ineffective
  2. Schizophrenia (a mental disorder characterized by a breakdown of thought processes)
  3. Sleep apnoea syndrome (a sleep-related disorder in which the effort to breathe is diminished or absent)
  4. Somnambulism (sleep walking)
  5. Suicidal ideation
  6. Suicide attempt

What are the common drug interactions of Nuedexta and Premarin, 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:

  1. Chronic kidney disease

50-59:

  1. Complex partial seizures (epileptic seizure)

60+:

  1. Flatulence (flatus expelled through the anus)
  2. Nausea (feeling of having an urge to vomit)
  3. Alopecia (absence of hair from areas of the body)

What are the existing conditions these people have? *

  1. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 7 people, 53.85%
  2. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 23.08%
  3. High Blood Cholesterol: 2 people, 15.38%
  4. Stress And Anxiety: 1 person, 7.69%
  5. Arthritis (form of joint disorder that involves inflammation of one or more joints): 1 person, 7.69%
  6. Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 1 person, 7.69%
  7. Cardiac Disorder: 1 person, 7.69%
  8. Crying: 1 person, 7.69%
  9. Depression: 1 person, 7.69%
  10. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Nuedexta and Premarin?

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Related studies:

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

Browse all drug interactions of Nuedexta and Premarin:

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 Nuedexta:

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 Premarin:

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 Nuedexta 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 Premarin 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 dextromethorphan hydrobromide; quinidine sulfate and estrogens, conjugated (the active ingredients of Nuedexta and Premarin, respectively), and Nuedexta and Premarin (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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