Doxycycline and Cachexia - a phase IV clinical study of FDA data

Summary:

Cachexia is reported as a side effect among people who take Doxycycline (doxycycline hyclate), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Levaquin, and have Breast cancer.

The phase IV clinical study analyzes which people have Cachexia when taking Doxycycline. It is created by eHealthMe based on reports of 57,458 people who have side effects when taking Doxycycline from the FDA, and is updated regularly.

What is Doxycycline?

Doxycycline has active ingredients of doxycycline hyclate. It is often used in acne. eHealthMe is studying from 60,863 Doxycycline users. Check the latest studies of Doxycycline.

What is Cachexia?

Cachexia (loss of weight) is found to be associated with 703 drugs and 1,197 conditions by eHealthMe. Check the latest studies of Cachexia.

On Feb, 11, 2026

57,458 people reported to have side effects when taking Doxycycline.
Among them, 17 people (0.03%) have Cachexia.

Among these 17 people:

How long have people been on Doxycycline when they have Cachexia? *

What is the gender of people who have Cachexia when taking Doxycycline? *

female: 41.18 %
male: 58.82 %

What is the age of people who have Cachexia when taking Doxycycline? *

What are other drugs people take besides Doxycycline? *

What are other side effects people have besides Cachexia? *

Anaemia (lack of blood): 10 people, 58.82%
Fatigue (feeling of tiredness): 9 people, 52.94%
Pain: 8 people, 47.06%
Stress And Anxiety: 8 people, 47.06%
Injury: 6 people, 35.29%
Swallowing Difficulty: 6 people, 35.29%
Osteonecrosis Of Jaw (death of bone of jaw): 5 people, 29.41%
Pathological Fracture (broken bone caused by disease): 5 people, 29.41%
Oedema Peripheral (superficial swelling): 5 people, 29.41%
Nausea (feeling of having an urge to vomit): 5 people, 29.41%

What are the existing conditions these people have? *

Breast Cancer: 4 people, 23.53%
Urinary Tract Infection: 2 people, 11.76%
Diabetic Neuropathy (neuropathic disorders that are associated with diabetes mellitus): 1 person, 5.88%
Bronchopulmonary Aspergillosis (lung disorder caused by aspergillus fungi): 1 person, 5.88%
Cardiac Failure Congestive: 1 person, 5.88%
Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 1 person, 5.88%
Constipation: 1 person, 5.88%
Depression: 1 person, 5.88%
Diabetes: 1 person, 5.88%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

Do you take Doxycycline and have Cachexia?

- Check whether Cachexia is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Doxycycline:

Doxycycline (60,863 reports)

Cachexia treatments and more:

Cachexia (7,763 reports)

Browse all side effects of Doxycycline:

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 the drugs that are associated with Cachexia:

Cachexia (703 drugs)

Browse all the conditions that are associated with Cachexia:

Cachexia (1,197 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on doxycycline hyclate (the active ingredients of Doxycycline) and Doxycycline (the brand name). 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.