Methotrexate and Phytonadione drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Methotrexate (methotrexate sodium) and Phytonadione (phytonadione). Common drug interactions include blister among females and hypoxia among males.

The phase IV clinical study analyzes what interactions people have when they take Methotrexate and Phytonadione. It is created by eHealthMe based on reports of 97 people who take the same drugs from the FDA, and is updated regularly.

What is Methotrexate?

Methotrexate has active ingredients of methotrexate sodium. It is often used in rheumatoid arthritis. eHealthMe is studying from 604,312 Methotrexate users. Check the latest studies of Methotrexate.

What is Phytonadione?

Phytonadione has active ingredients of phytonadione. It is often used in hemorrhagic stroke. eHealthMe is studying from 2,870 Phytonadione users. Check the latest studies of Phytonadione.



On Jul, 26, 2026

97 people who take Methotrexate and Phytonadione together, and have interactions are studied.

Methotrexate and Phytonadione drug interactions.

What are the common drug interactions of Methotrexate and Phytonadione, by gender? *:

female:

  1. Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
  2. Blister infected (infection of small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
  3. Foot fracture
  4. Ingrowing nail
  5. Skin exfoliation (removal of the oldest dead skin cells)
  6. Tooth disorder (tooth disease)
  7. Hypotension (abnormally low blood pressure)
  8. Sepsis (a severe blood infection that can lead to organ failure and death)
  9. Respiratory failure (inadequate gas exchange by the respiratory system)
  10. Diarrhoea

male:

  1. Hypoxia (low oxygen in tissues)
  2. Neuropathy peripheral (surface nerve damage)
  3. Acute lymphocytic leukaemia (cancer of the white blood cells)
  4. Agitation (state of anxiety or nervous excitement)
  5. Ammonia increased
  6. Apnoea (suspension of external breathing)
  7. Chest discomfort
  8. Clonus (series of involuntary, rhythmic, muscular contractions and relaxations)
  9. Coagulopathy (blood's ability to clot is impaired)
  10. Confusional state

What are the common drug interactions of Methotrexate and Phytonadione, 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. Pulmonary hypertension (increase in blood pressure in the lung artery)
  2. Restrictive cardiomyopathy (a condition in which the walls of the lower chambers of the heart (the ventricles) are abnormally rigid and lack the flexibility)
  3. Heart transplant
  4. Aplastic anaemia (blood disorder in which the body's bone marrow doesn't make enough new blood cells)
  5. Anaemia (lack of blood)
  6. Ascites (accumulation of fluid in the abdominal cavity)
  7. Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection)
  8. Delirium (wild excitement)
  9. Depressed level of consciousness
  10. Hypernatraemia (an abnormally high plasma concentration of sodium ions)

10-19:

  1. Coagulopathy (blood's ability to clot is impaired)
  2. Neuropathy peripheral (surface nerve damage)
  3. Pericardial effusion (fluid around the heart)
  4. Respiratory disorder (respiratory disease)
  5. Atelectasis (partial or complete collapse of the lung)
  6. Cough
  7. Hypoxia (low oxygen in tissues)
  8. Pyrexia (fever)
  9. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  10. Acute lymphocytic leukaemia (cancer of the white blood cells)

20-29:

  1. Drug-induced liver injury (diseases of the liver that are caused by physician-prescribed medications)
  2. Acute graft versus host disease (acute complication following an allogeneic tissue/blood transplant)
  3. Acute respiratory failure
  4. 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)
  5. Herpes zoster ophthalmic (eye infection caused by varicella-zoster virus (vzv))
  6. Pneumonia
  7. Pneumonia fungal
  8. Pneumonia viral
  9. Pulmonary haemorrhage (acute bleeding from the lung)
  10. Pulmonary oedema (fluid accumulation in the lungs)

30-39:

  1. Pneumonia
  2. Pruritus (severe itching of the skin)
  3. Septic shock (shock due to blood infection)

40-49:

  1. Acute graft versus host disease (acute complication following an allogeneic tissue/blood transplant)
  2. Seizure (abnormal excessive or synchronous neuronal activity in the brain)
  3. Status epilepticus (a life-threatening condition in which the brain is in a state of persistent seizure)
  4. Hypersensitivity
  5. Acute lymphocytic leukaemia (cancer of the white blood cells)
  6. Multi-organ failure (multisystem organ failure)
  7. Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
  8. Renal failure (kidney dysfunction)
  9. Sepsis (a severe blood infection that can lead to organ failure and death)
  10. Stevens johnson syndrome (an immune-complex-mediated hypersensitivity disorder. it ranges from mild skin and mucous membrane lesions to a severe)

50-59:

  1. Cellulitis (infection under the skin)
  2. Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
  3. Blister infected (infection of small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
  4. Foot fracture
  5. Ingrowing nail
  6. Skin exfoliation (removal of the oldest dead skin cells)
  7. Tooth disorder (tooth disease)
  8. Pustular psoriasis (raised bumps on the skin that are filled with pus)
  9. Acute hepatic failure
  10. Drug ineffective

60+:

  1. Hypotension (abnormally low blood pressure)
  2. Sepsis (a severe blood infection that can lead to organ failure and death)
  3. Anaemia (lack of blood)
  4. Cerebrovascular disorder (disease of brain)
  5. General physical health deterioration (weak health status)
  6. Haemorrhage intracranial (bleeding within the skull)
  7. Gastrointestinal disorder (functional problems of gastrointestinal tract)
  8. Small intestinal obstruction (blockage in small intestine)
  9. Bacterial toxaemia (blood contains bacterial toxins)
  10. Cardiac failure congestive

What are the existing conditions these people have? *

  1. Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 15 people, 15.46%
  2. Acute Myeloid Leukaemia (acute cancer in which the bone marrow makes abnormal myeloblasts): 13 people, 13.40%
  3. Nausea And Vomiting: 8 people, 8.25%
  4. Nausea (feeling of having an urge to vomit): 8 people, 8.25%
  5. High Blood Pressure: 8 people, 8.25%
  6. Pain: 7 people, 7.22%
  7. Septic Shock (shock due to blood infection): 6 people, 6.19%
  8. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 6.19%
  9. Diarrhea: 6 people, 6.19%
  10. Shock Haemorrhagic (a life-threatening condition with symptoms like low blood pressure, weakness, shallow breathing, cold, clammy skin due to excess bleeding): 5 people, 5.15%

* 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 Methotrexate and Phytonadione:

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 Methotrexate:

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 Phytonadione:

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 Methotrexate 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 Phytonadione 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

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on methotrexate sodium and phytonadione (the active ingredients of Methotrexate and Phytonadione, respectively), and Methotrexate and Phytonadione (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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