1. Home
  2. Analysis
  3. Simcor
  4. Testim

Simcor and Testim drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Simcor (niacin; simvastatin) and Testim (testosterone). Common drug interactions include flushing among males.

The phase IV clinical study analyzes what interactions people have when they take Simcor and Testim. It is created by eHealthMe based on reports of 11 people who take the same drugs from the FDA, and is updated regularly.

What is Simcor?

Simcor has active ingredients of niacin; simvastatin. It is often used in high blood cholesterol. eHealthMe is studying from 11,604 Simcor users. Check the latest studies of Simcor.

What is Testim?

Testim has active ingredients of testosterone. It is often used in testosterone. eHealthMe is studying from 5,453 Testim users. Check the latest studies of Testim.

On Jul, 29, 2026

11 people who take Simcor and Testim together, and have interactions are studied.

Simcor and Testim drug interactions.

What are the common drug interactions of Simcor and Testim, by gender? *:

female:

n/a

male:

  1. Flushing (the warm, red condition of human skin)
  2. Gastrointestinal disorder (functional problems of gastrointestinal tract)
  3. Atrial flutter (an abnormal heart rhythm that occurs in the atria of the heart)
  4. Depression
  5. Dysphagia (a condition in which swallowing is difficult or painful)
  6. Generalised erythema (redness of the skin all over the body)
  7. Headache (pain in head)
  8. Infection
  9. Ligament rupture (tear in ligament)
  10. Muscle rupture (tear in muscle)

What are the common drug interactions of Simcor and Testim, 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:

  1. Flushing (the warm, red condition of human skin)

60+:

  1. Flushing (the warm, red condition of human skin)
  2. Gastrointestinal disorder (functional problems of gastrointestinal tract)
  3. Erythema (redness of the skin)
  4. Infection
  5. Ligament rupture (tear in ligament)
  6. Muscle rupture (tear in muscle)
  7. Rheumatoid arthritis (a chronic progressive disease causing inflammation in the joints)
  8. Urinary retention (the inability to completely or partially empty the bladder)
  9. Myalgia (muscle pain)
  10. Prostate infection

What are the existing conditions these people have? *

  1. Hyperlipidaemia (presence of excess lipids in the blood): 3 people, 27.27%
  2. High Blood Pressure: 3 people, 27.27%
  3. Type 2 Diabetes: 2 people, 18.18%
  4. Sleep Disorder: 2 people, 18.18%
  5. Pain: 2 people, 18.18%
  6. High Density Lipoprotein Decreased: 2 people, 18.18%
  7. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 18.18%
  8. Enlarged Prostate: 2 people, 18.18%
  9. Depression: 2 people, 18.18%
  10. Constipation: 2 people, 18.18%

* Approximation only. Some reports may have incomplete information.

Do you take Simcor and Testim?

- 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 Simcor and Testim:

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 Simcor:

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 Testim:

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 Simcor 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 Testim 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 niacin; simvastatin and testosterone (the active ingredients of Simcor and Testim, respectively), and Simcor and Testim (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.

Recent studies on eHealthMe:

© 2026 eHealthMe.com. All rights reserved. Use of this site constitutes acceptance of eHealthMe.com's terms of service and privacy policy.