Relistor and Amoxicillin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Relistor (methylnaltrexone bromide) and Amoxicillin (amoxicillin). Common drug interactions include death among females and arthralgia among males.

The phase IV clinical study analyzes what interactions people have when they take Relistor and Amoxicillin. It is created by eHealthMe based on reports of 48 people who take the same drugs from the FDA, and is updated regularly.

What is Relistor?

Relistor has active ingredients of methylnaltrexone bromide. eHealthMe is studying from 1,659 Relistor users. Check the latest studies of Relistor.

What is Amoxicillin?

Amoxicillin has active ingredients of amoxicillin. It is often used in infection. eHealthMe is studying from 99,235 Amoxicillin users. Check the latest studies of Amoxicillin.



On Jul, 12, 2026

48 people who take Relistor and Amoxicillin together, and have interactions are studied.

Relistor and Amoxicillin drug interactions.

What are the common drug interactions of Relistor and Amoxicillin, by gender? *:

female:

  1. Death
  2. Pain
  3. Renal failure (kidney dysfunction)
  4. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  5. Decreased appetite
  6. Hypertension (high blood pressure)
  7. Abdominal pain
  8. Acetabulum fracture (socket of the hip joint- fracture)
  9. Actinic keratosis (skin disease due to sun exposure)
  10. Anaemia (lack of blood)

male:

  1. Arthralgia (joint pain)
  2. Anaemia (lack of blood)
  3. Arthritis (form of joint disorder that involves inflammation of one or more joints)
  4. Asthenia (weakness)
  5. Asthenopia (eyestrain-tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem)
  6. Benign prostatic hyperplasia (benign enlargement of the prostate)
  7. Bone disorder
  8. Cerebral small vessel ischaemic disease (inadequate blood supply to small blood vessel of brain)
  9. Cholecystitis chronic (long lasting infection of gallbladder)
  10. Colon cancer

What are the common drug interactions of Relistor and Amoxicillin, 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. Facial bones fracture (bone fracture of face)
  2. Fall

50-59:

  1. Inguinal hernia (hernia in which a loop of intestine enters the inguinal canal; the most common type of hernia in males)
  2. Intervertebral disc protrusion (spinal disc protrusion)
  3. Iritis (painful inflammation of the iris of the eye)
  4. Left ventricular hypertrophy (the thickening of the myocardium (muscle) of the left ventricle of the heart)
  5. Lymphadenopathy mediastinal (an enlargement of the lymph nodes in the part of the chest that separates the lungs)
  6. Melanocytic naevus (a type of lesion that contains nevus cells (a type of melanocyte))
  7. Memory impairment
  8. Metastases to bone (cancer spreads to bone)
  9. Metastases to lymph nodes (cancer spreads to lymph node)
  10. Metastatic renal cell carcinoma (spreadable kidney cell tumour)

60+:

  1. Chronic kidney disease
  2. Cataplexy (loss of muscle tone accompanied by full conscious awareness)
  3. Blood lactate dehydrogenase increased
  4. Blood potassium increased
  5. Confusional state
  6. Death
  7. Fall
  8. Helicobacter gastritis (inflammation of the inner lining of the stomach caused by helicobacter pylori (h. pylori) a bacterium)
  9. Kidney infection
  10. Meniscus lesion (lesion of a crescent-shaped piece of cartilage between the femur and the tibia)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 17 people, 35.42%
  2. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 13 people, 27.08%
  3. Pain: 10 people, 20.83%
  4. Stress And Anxiety: 9 people, 18.75%
  5. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 8 people, 16.67%
  6. Insomnia (sleeplessness): 8 people, 16.67%
  7. Constipation: 7 people, 14.58%
  8. Depression: 7 people, 14.58%
  9. Metastases To Bone (cancer spreads to bone): 7 people, 14.58%
  10. High Blood Cholesterol: 6 people, 12.50%

* Approximation only. Some reports may have incomplete information.

Do you take Relistor and Amoxicillin?

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Related studies:

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

Browse all drug interactions of Relistor and Amoxicillin:

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 Relistor:

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 Amoxicillin:

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 Relistor 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 Amoxicillin 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 methylnaltrexone bromide and amoxicillin (the active ingredients of Relistor and Amoxicillin, respectively), and Relistor and Amoxicillin (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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