Korlym and Zanaflex drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Korlym (mifepristone) and Zanaflex (tizanidine hydrochloride). Common drug interactions include blood potassium decreased among females.

The phase IV clinical study analyzes what interactions people have when they take Korlym and Zanaflex. 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 Korlym?

Korlym has active ingredients of mifepristone. eHealthMe is studying from 3,078 Korlym users. Check the latest studies of Korlym.

What is Zanaflex?

Zanaflex has active ingredients of tizanidine hydrochloride. It is often used in muscle spasms. eHealthMe is studying from 17,476 Zanaflex users. Check the latest studies of Zanaflex.

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, 03, 2026

23 people who take Korlym and Zanaflex together, and have interactions are studied.

Korlym and Zanaflex drug interactions.

What are the common drug interactions of Korlym and Zanaflex, by gender? *:

female:

  1. Blood potassium decreased
  2. Vaginal discharge
  3. Blood glucose increased
  4. Hot flush (sudden feelings of heat)
  5. Pruritus (severe itching of the skin)
  6. Bladder pain
  7. Genital pain (pain in genital)
  8. Nausea (feeling of having an urge to vomit)
  9. Pelvic pain
  10. Urinary tract infection

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Bladder pain
  2. Genital pain (pain in genital)
  3. Nausea (feeling of having an urge to vomit)
  4. Pelvic pain
  5. Urinary tract infection
  6. Vaginal discharge
  7. Vaginal haemorrhage (vaginal bleeding)
  8. Vomiting

40-49:

  1. Balance disorder
  2. Blood glucose increased

50-59:

  1. Fall
  2. Fatigue (feeling of tiredness)
  3. Spinal fracture (fracture in one of vertebrae)

60+:

  1. Blood glucose increased
  2. Blood potassium decreased
  3. Gastroenteritis viral (inflammation of stomach and intestine caused by virus infection)
  4. Heart rate increased
  5. Myalgia (muscle pain)
  6. Oral neoplasm benign (non cancer tumour of mouth)
  7. Parkinson's disease
  8. Pericardial effusion (fluid around the heart)
  9. Pleural effusion (water on the lungs)
  10. Pneumonia

What are the existing conditions these people have? *

  1. Cushing's Syndrome (obesity, a rounded face, increased fat): 19 people, 82.61%
  2. Ectopic Acth Syndrome (a type of cancer-usually associated with the lung): 2 people, 8.70%

* Approximation only. Some reports may have incomplete information.

Do you take Korlym and Zanaflex?

- 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 Korlym and Zanaflex:

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 Korlym:

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 Zanaflex:

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 Korlym 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 Zanaflex 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 mifepristone and tizanidine hydrochloride (the active ingredients of Korlym and Zanaflex, respectively), and Korlym and Zanaflex (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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