Megace and Gemfibrozil drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Megace (megestrol acetate) and Gemfibrozil (gemfibrozil). Common drug interactions include pain among females and nausea among males.

The phase IV clinical study analyzes what interactions people have when they take Megace and Gemfibrozil. It is created by eHealthMe based on reports of 35 people who take the same drugs from the FDA, and is updated regularly.

What is Megace?

Megace has active ingredients of megestrol acetate. It is often used in weight loss. eHealthMe is studying from 10,095 Megace users. Check the latest studies of Megace.

What is Gemfibrozil?

Gemfibrozil has active ingredients of gemfibrozil. It is often used in high blood cholesterol. eHealthMe is studying from 18,213 Gemfibrozil users. Check the latest studies of Gemfibrozil.



On Jul, 09, 2026

35 people who take Megace and Gemfibrozil together, and have interactions are studied.

Megace and Gemfibrozil drug interactions.

What are the common drug interactions of Megace and Gemfibrozil, by gender? *:

female:

  1. Pain
  2. Reflux oesophagitis (an oesophageal mucosal injury that occurs of gastric contents into the oesophagus)
  3. Rib fracture
  4. Sinus headache (headache caused by sinus infections)
  5. Sinusitis (inflammation of sinus)
  6. Spinal column stenosis (narrowing of spinal column)
  7. Toothache (tooth pain)
  8. Transient ischaemic attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow))
  9. Trigeminal neuralgia (a painful condition of the nerve responsible for most facial sensation)
  10. Back pain

male:

  1. Nausea (feeling of having an urge to vomit)
  2. Dehydration (dryness resulting from the removal of water)
  3. Fatigue (feeling of tiredness)
  4. Weight decreased
  5. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  6. Anxiety
  7. Asthenia (weakness)
  8. Back pain
  9. Bone density decreased
  10. Dyspnoea (difficult or laboured respiration)

What are the common drug interactions of Megace and Gemfibrozil, 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. Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
  2. Abdominal pain
  3. Antiphospholipid syndrome (disorder that manifests clinically as recurrent venous or arterial thrombosis and/or fetal loss)
  4. Anxiety
  5. Arteriospasm coronary (spasm of the large- or medium-sized coronary arteries)
  6. Arthralgia (joint pain)
  7. Asthma
  8. Astigmatism (refractive error of the eye in which parallel rays of light from an external source do not converge on a single focal point on the retina)
  9. Azotaemia (excess of urea or other nitrogenous compounds in the blood)
  10. Back pain

50-59:

  1. Pain
  2. Renal failure (kidney dysfunction)
  3. Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
  4. Hypotension (abnormally low blood pressure)
  5. Neutropenia (an abnormally low number of neutrophils)
  6. Osteopenia (a condition where bone mineral density is lower than normal)
  7. Pneumonia
  8. Sepsis (a severe blood infection that can lead to organ failure and death)
  9. Thrombocytopenia (decrease of platelets in blood)
  10. Thrombophlebitis superficial (swelling (inflammation) of a superficial vein caused by a blood clot)

60+:

  1. Diarrhoea
  2. Asthenia (weakness)
  3. Bone neoplasm malignant (cancer of bone)
  4. Death
  5. Decreased interest
  6. Disability
  7. Dizziness
  8. Duodenitis (inflammation of the duodenum)
  9. Dysphagia (a condition in which swallowing is difficult or painful)
  10. Dyspnoea (difficult or laboured respiration)

What are the existing conditions these people have? *

  1. Urticaria (rash of round, red welts on the skin that itch intensely): 5 people, 14.29%
  2. High Blood Pressure: 5 people, 14.29%
  3. Otitis (ear infection): 4 people, 11.43%
  4. Nausea (feeling of having an urge to vomit): 4 people, 11.43%
  5. Pain: 4 people, 11.43%
  6. Hypertriglyceridaemia (excess of triglycerides in the blood): 3 people, 8.57%
  7. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 8.57%
  8. Itching: 3 people, 8.57%
  9. Folliculitis (infection of hair root): 3 people, 8.57%
  10. Metastatic Renal Cell Carcinoma (spreadable kidney cell tumour): 3 people, 8.57%

* Approximation only. Some reports may have incomplete information.

Do you take Megace and Gemfibrozil?

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- 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 Megace and Gemfibrozil:

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 Megace:

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 Gemfibrozil:

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 Megace 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 Gemfibrozil 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 megestrol acetate and gemfibrozil (the active ingredients of Megace and Gemfibrozil, respectively), and Megace and Gemfibrozil (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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