Amoxicillin and Fentanyl-100 drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Amoxicillin (amoxicillin) and Fentanyl-100 (fentanyl). Common drug interactions include cardiomyopathy among females and pyrexia among males.

The phase IV clinical study analyzes what interactions people have when they take Amoxicillin and Fentanyl-100. It is created by eHealthMe based on reports of 50 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Fentanyl-100?

Fentanyl-100 has active ingredients of fentanyl. It is often used in pain. eHealthMe is studying from 7,047 Fentanyl-100 users. Check the latest studies of Fentanyl-100.



On Aug, 12, 2026

50 people who take Amoxicillin and Fentanyl-100 together, and have interactions are studied.

Amoxicillin and Fentanyl-100 drug interactions.

What are the common drug interactions of Amoxicillin and Fentanyl-100, by gender? *:

female:

  1. Cardiomyopathy (weakening of the heart muscle)
  2. Dyspnoea (difficult or laboured respiration)
  3. Headache (pain in head)
  4. Abdominal pain upper
  5. Anaemia (lack of blood)
  6. Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
  7. Neck pain
  8. Asthma
  9. Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
  10. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)

male:

  1. Pyrexia (fever)
  2. Anxiety
  3. Body height decreased
  4. Drug effect increased
  5. Influenza
  6. Injury
  7. Dysphagia (a condition in which swallowing is difficult or painful)
  8. Anaemia (lack of blood)
  9. Osteonecrosis of jaw (death of bone of jaw)
  10. Pneumonia

What are the common drug interactions of Amoxicillin and Fentanyl-100, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

  1. Abdominal pain upper
  2. Asthenia (weakness)
  3. Bronchitis chronic (inflammation of the mucous membrane in the bronchial tubes- chronic)
  4. Cough
  5. Decreased appetite
  6. Headache (pain in head)
  7. Injury
  8. Lung neoplasm malignant (cancer tumour of lung)
  9. Mucoepidermoid carcinoma (cancer of type of salivary gland malignancy in adults)
  10. Nausea (feeling of having an urge to vomit)

10-19:

  1. Overdose
  2. Abscess (pus)
  3. Colitis ulcerative (inflammation of colon with ulcer)
  4. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)

20-29:

  1. Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
  2. Blood cholesterol increased
  3. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  4. Cardiac failure congestive
  5. Cardiogenic shock (inadequate circulation of blood)
  6. Cardiomyopathy (weakening of the heart muscle)
  7. Cerebral ischaemia (insufficient blood flow to the brain to meet metabolic demand)
  8. Cholecystitis (infection of gallbladder)
  9. Device related infection
  10. Endometrial cancer

30-39:

  1. Cardiac arrest
  2. Confusional state
  3. Multiple drug overdose
  4. Respiratory arrest (cessation of normal respiration due to failure of the lungs to function effectively)

40-49:

  1. Drug abuse
  2. Anaemia (lack of blood)
  3. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  4. Anxiety
  5. Aortic dilatation
  6. Bacterial infection
  7. Bone disorder
  8. Chest pain
  9. Colon cancer metastatic (cancer of colon spreads to other part of body)
  10. Compression fracture (fracture due to pressure caused by injury)

50-59:

  1. Pollakiuria (abnormally frequent passage of relatively small quantities or urine)
  2. Pyrexia (fever)
  3. Diarrhoea
  4. Neuralgia (pain in one or more nerves)
  5. Dysphagia (a condition in which swallowing is difficult or painful)
  6. Exostosis (formation of new bone on the surface of a bone)
  7. Muscle spasms (muscle contraction)
  8. Arthralgia (joint pain)
  9. Body height decreased
  10. Drug effect increased

60+:

  1. Fall
  2. Dehydration (dryness resulting from the removal of water)
  3. Cardiomegaly (increased size of heart than normal)
  4. Cataract (clouding of the lens inside the eye)
  5. General physical health deterioration (weak health status)
  6. Hypoaesthesia (reduced sense of touch or sensation)
  7. Injury
  8. Nausea (feeling of having an urge to vomit)
  9. Osteomyelitis (infection of bone)
  10. Osteonecrosis of jaw (death of bone of jaw)

What are the existing conditions these people have? *

  1. Multiple Myeloma (cancer of the plasma cells): 7 people, 14.00%
  2. Metastases To Bone (cancer spreads to bone): 4 people, 8.00%
  3. Joint Pain: 4 people, 8.00%
  4. Depression: 4 people, 8.00%
  5. Sinusitis (inflammation of sinus): 3 people, 6.00%
  6. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 6.00%
  7. Bone Pain: 3 people, 6.00%
  8. Arthritis (form of joint disorder that involves inflammation of one or more joints): 3 people, 6.00%

* Approximation only. Some reports may have incomplete information.

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Related studies:

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

Browse all drug interactions of Amoxicillin and Fentanyl-100:

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 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 side effects of Fentanyl-100:

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

Browse all interactions between Fentanyl-100 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 amoxicillin and fentanyl (the active ingredients of Amoxicillin and Fentanyl-100, respectively), and Amoxicillin and Fentanyl-100 (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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