Potassium phosphate and Fentanyl drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Potassium phosphate (potassium) and Fentanyl (fentanyl citrate). Common drug interactions include drug resistance among females and acute lymphocytic leukaemia among males.

The phase IV clinical study analyzes what interactions people have when they take Potassium phosphate and Fentanyl. It is created by eHealthMe based on reports of 38 people who take the same drugs from the FDA, and is updated regularly.

What is Potassium phosphate?

Potassium phosphate has active ingredients of potassium. eHealthMe is studying from 578 Potassium phosphate users. Check the latest studies of Potassium phosphate.

What is Fentanyl?

Fentanyl has active ingredients of fentanyl citrate. It is often used in pain. eHealthMe is studying from 73,301 Fentanyl users. Check the latest studies of Fentanyl.



On Jul, 08, 2026

38 people who take Potassium phosphate and Fentanyl together, and have interactions are studied.

Potassium phosphate and Fentanyl drug interactions.

What are the common drug interactions of Potassium Phosphate and Fentanyl, by gender? *:

female:

  1. Drug resistance (reduction in effectiveness of a drug)
  2. Duodenal perforation (complication of duodenal ulcer)
  3. Enterococcal bacteraemia (presence of bacteria lactic acid in the blood)
  4. Enterococcal infection
  5. Escherichia urinary tract infection (urinary tract infection by escherichia coli)
  6. Fluid retention (an abnormal accumulation of fluid in the blood)
  7. Gastroenteritis radiation (radiation induced inflammation of stomach and intestine)
  8. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
  9. Generalised oedema (swelling all over the body)
  10. Hepatic cyst

male:

  1. Acute lymphocytic leukaemia (cancer of the white blood cells)
  2. Areflexia (absence of a reflex)
  3. Haemoglobin decreased
  4. Haemolysis (breaking open of red blood cells and the release of haemoglobin into the surrounding fluid)
  5. Haptoglobin decreased
  6. Oxygen saturation increased
  7. Platelet count decreased
  8. Pupil fixed
  9. Red blood cell count decreased
  10. Red cell distribution width increased

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

0-1:

  1. Abdominal compartment syndrome (increased pressure in abdomen)
  2. Ascites (accumulation of fluid in the abdominal cavity)
  3. Blood lactic acid increased
  4. Cholecystitis (infection of gallbladder)
  5. Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
  6. Coagulopathy (blood's ability to clot is impaired)
  7. Duodenal perforation (complication of duodenal ulcer)
  8. Enterococcal infection
  9. Fluid retention (an abnormal accumulation of fluid in the blood)
  10. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)

2-9:

  1. Hypotension (abnormally low blood pressure)
  2. Renal impairment (severely reduced kidney function)
  3. Circulatory collapse

10-19:

  1. Paraneoplastic syndrome (symptom that is the consequence of the presence of cancer in the body)

20-29:

  1. Pupil fixed
  2. Red blood cell count decreased
  3. Red cell distribution width increased
  4. Septic shock (shock due to blood infection)
  5. Urinary sediment present
  6. Propofol infusion syndrome
  7. Blood creatine phosphokinase increased
  8. Blood triglycerides increased
  9. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
  10. Contusion (a type of hematoma of tissue in which capillaries)

30-39:

  1. Hypokalaemia (low potassium)
  2. Hepatic failure (liver failure)
  3. Septic shock (shock due to blood infection)
  4. Staphylococcal infection (an infection with staphylococcus bacteria)
  5. Electrocardiogram qt prolonged
  6. Metabolic alkalosis (too much bicarbonate in the blood)
  7. Torsade de pointes (a abnormal heart rate with abnormal beating pattern)
  8. Ventricular tachycardia (rapid heartbeat that originates in one of the lower chambers (the ventricles) of the heart)
  9. Dizziness
  10. Drug resistance (reduction in effectiveness of a drug)

40-49:

  1. Septic shock (shock due to blood infection)
  2. Acute respiratory distress syndrome
  3. Acute respiratory failure
  4. Asthenia (weakness)
  5. Brain death
  6. Circulatory collapse
  7. Cough
  8. Ischaemic stroke (stroke; caused by an interruption in the flow of blood to the brain)
  9. Metabolic encephalopathy (disorder or disease of the brain due to the body's disability to use energy)
  10. Pneumonia

50-59:

  1. Cellulitis (infection under the skin)
  2. Dyspnoea (difficult or laboured respiration)
  3. Generalised oedema (swelling all over the body)
  4. Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
  5. Malignant neoplasm progression (cancer tumour came back)
  6. Neutropenia (an abnormally low number of neutrophils)
  7. Pericardial effusion (fluid around the heart)
  8. Pleural effusion (water on the lungs)
  9. Pyrexia (fever)
  10. Squamous cell carcinoma of skin (a cancer of a kind of epithelial cell, the squamous cell. these cells are the main part of the epidermis of the skin)

60+:

  1. Abdominal pain
  2. Acute coronary syndrome (acute chest pain and other symptoms that happen because the heart does not get blood)
  3. Spinal column stenosis (narrowing of spinal column)
  4. Upper respiratory tract infection
  5. Antidepressant drug level increased
  6. Peritonsillar abscess (painful pus filled inflammation of the tonsils and surrounding tissues)
  7. Serotonin syndrome (occurs when two drugs that affect the body's level of serotonin are taken together at the same time)
  8. Hypocalcaemia (levels of calcium in blood serum are abnormally low)
  9. Posterior reversible encephalopathy syndrome (posterior reversible encephalopathy syndrome (pres), also known as reversible posterior leukoencephalopathy syndrome (rpls), is a syndrome characterized by headache, confusion, seizures and visual loss)
  10. Anticonvulsant drug level increased

What are the existing conditions these people have? *

  1. Nausea (feeling of having an urge to vomit): 8 people, 21.05%
  2. Hypomagnesaemia (electrolyte disturbance in which there is an abnormally low level of magnesium in the blood): 6 people, 15.79%
  3. Constipation: 6 people, 15.79%
  4. Multiple Myeloma (cancer of the plasma cells): 6 people, 15.79%
  5. High Blood Pressure: 5 people, 13.16%
  6. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 5 people, 13.16%
  7. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 5 people, 13.16%
  8. Hypocalcaemia (levels of calcium in blood serum are abnormally low): 5 people, 13.16%
  9. Hypokalemia (low potassium): 5 people, 13.16%
  10. Pain In Extremity: 4 people, 10.53%

* Approximation only. Some reports may have incomplete information.

Do you take Potassium phosphate and Fentanyl?

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Related studies:

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

Browse all drug interactions of Potassium phosphate and Fentanyl:

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 Potassium phosphate:

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:

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 Potassium phosphate 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 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 potassium and fentanyl citrate (the active ingredients of Potassium phosphate and Fentanyl, respectively), and Potassium phosphate and Fentanyl (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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