Vfend and Purinethol drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Vfend (voriconazole) and Purinethol (mercaptopurine). Common drug interactions include cholestasis among females and cardio-respiratory arrest among males.

The phase IV clinical study analyzes what interactions people have when they take Vfend and Purinethol. It is created by eHealthMe based on reports of 31 people who take the same drugs from the FDA, and is updated regularly.

What is Vfend?

Vfend has active ingredients of voriconazole. It is often used in aspergillosis. eHealthMe is studying from 12,128 Vfend users. Check the latest studies of Vfend.

What is Purinethol?

Purinethol has active ingredients of mercaptopurine. It is often used in ulcerative colitis. eHealthMe is studying from 3,810 Purinethol users. Check the latest studies of Purinethol.



On Jul, 12, 2026

31 people who take Vfend and Purinethol together, and have interactions are studied.

Vfend and Purinethol drug interactions.

What are the common drug interactions of Vfend and Purinethol, by gender? *:

female:

  1. Cholestasis (a condition where bile cannot flow from the liver to the duodenum)
  2. Drug ineffective
  3. Pruritus generalised (generalized itching)
  4. Rash generalised (rash on most of body parts)
  5. Rash morbilliform (a rash that looks like measles)
  6. Hepatitis acute
  7. Hepatocellular injury (liver injury)
  8. Jaundice (a yellowish pigmentation of the skin, the conjunctival membranes)

male:

  1. Cardio-respiratory arrest (sudden dysfunction of heart and lungs)
  2. Cerebellar syndrome (impaired blood circulation to cerebellum due to lesion in artery)
  3. Confusional state
  4. Liver disorder (liver diseases)
  5. Tachypnoea (a condition of rapid breathing over 20 per minute)
  6. Arrhythmia (irregular heartbeat)
  7. Blast cell count increased
  8. Pyrexia (fever)
  9. Bronchial haemorrhage (bleeding in bronchia)
  10. Dyspnoea (difficult or laboured respiration)

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

0-1:

n/a

2-9:

  1. Fluoride increased
  2. Cholestasis (a condition where bile cannot flow from the liver to the duodenum)
  3. Drug ineffective
  4. Pruritus generalised (generalized itching)
  5. Rash generalised (rash on most of body parts)
  6. Rash morbilliform (a rash that looks like measles)
  7. Anxiety
  8. Clonus (series of involuntary, rhythmic, muscular contractions and relaxations)
  9. Headache (pain in head)
  10. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)

10-19:

  1. Cardio-respiratory arrest (sudden dysfunction of heart and lungs)
  2. Cerebellar syndrome (impaired blood circulation to cerebellum due to lesion in artery)
  3. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
  4. Bronchopulmonary aspergillosis (lung disorder caused by aspergillus fungi)
  5. Coma (state of unconsciousness lasting more than six hours)
  6. Eye movement disorder
  7. Mydriasis (a dilation of the pupil)
  8. Sinus bradycardia (an unusually slow heartbeat due to heart disease)
  9. Ventricular fibrillation (abnormally irregular heart rhythm)
  10. Lymphadenitis (inflammation or enlargement of a lymph node)

20-29:

  1. Anuria (failure of the kidneys to produce urine)
  2. Hepatitis fulminant (life-threatening condition defined by significantly impaired liver function)
  3. Rales (an abnormal respiratory sound characterized by fine crackles)
  4. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  5. Agitation (state of anxiety or nervous excitement)
  6. Alanine aminotransferase increased
  7. Antithrombin iii decreased
  8. Ascites (accumulation of fluid in the abdominal cavity)
  9. Aspartate aminotransferase increased
  10. Asterixis (flapping tremor, or liver flap)

30-39:

n/a

40-49:

n/a

50-59:

  1. Graft versus host disease in skin (the donated bone marrow or stem cells view the recipient's body as foreign, and the donated cells/bone marrow attack the skin)
  2. Neoplasm progression (growth of tumour)
  3. Acute lymphocytic leukaemia recurrent (cancer in which the bone marrow makes too many lymphocytes-recurrent)
  4. Aplasia (defective development or congenital absence of an organ or tissue)
  5. Death
  6. Febrile neutropenia (fever with reduced white blood cells)

60+:

  1. Thrombocytopenia (decrease of platelets in blood)
  2. Aplasia (defective development or congenital absence of an organ or tissue)
  3. Hepatitis acute
  4. Hepatocellular injury (liver injury)
  5. Jaundice (a yellowish pigmentation of the skin, the conjunctival membranes)
  6. Platelet count decreased

What are the existing conditions these people have? *

  1. Bronchopulmonary Aspergillosis (lung disorder caused by aspergillus fungi): 14 people, 45.16%
  2. Acute Myeloid Leukaemia (acute cancer in which the bone marrow makes abnormal myeloblasts): 11 people, 35.48%
  3. Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 8 people, 25.81%
  4. Fever: 7 people, 22.58%
  5. Pulmonary Mycosis (lung infection caused by yeast-like fungi): 2 people, 6.45%
  6. Febrile Bone Marrow Aplasia (bone marrow greatly decreases or stops production of blood cells): 2 people, 6.45%
  7. Cerebral Aspergillosis (pus collection with swelling in brain): 2 people, 6.45%
  8. Caecitis (inflammation of the cecum): 2 people, 6.45%
  9. Bone Marrow Failure: 2 people, 6.45%

* 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 Vfend and Purinethol:

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 Vfend:

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 Purinethol:

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 Vfend 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 Purinethol 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 voriconazole and mercaptopurine (the active ingredients of Vfend and Purinethol, respectively), and Vfend and Purinethol (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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