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

Summary:

Drug interactions are reported among people who take Vfend (voriconazole) and Theophylline (theophylline). Common drug interactions include photophobia among females and alopecia among males.

The phase IV clinical study analyzes what interactions people have when they take Vfend and Theophylline. It is created by eHealthMe based on reports of 23 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 Theophylline?

Theophylline has active ingredients of theophylline. It is often used in asthma. eHealthMe is studying from 19,150 Theophylline users. Check the latest studies of Theophylline.

On Jul, 09, 2026

23 people who take Vfend and Theophylline together, and have interactions are studied.

Vfend and Theophylline drug interactions.

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

female:

Photophobia (extreme sensitivity to light)
Abdominal distension
Abdominal pain
Ascites (accumulation of fluid in the abdominal cavity)
Blood bilirubin increased
Dehydration (dryness resulting from the removal of water)
Hypoalbuminaemia (levels of albumin in blood serum are abnormally low)
Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
Infection
Small intestinal obstruction (blockage in small intestine)

male:

Alopecia (absence of hair from areas of the body)
Blood pressure increased
Gastrointestinal disorder (functional problems of gastrointestinal tract)
Photophobia (extreme sensitivity to light)
Swelling
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight)
Dizziness
Fall
Liver disorder (liver diseases)
Nausea (feeling of having an urge to vomit)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Bronchial obstruction (blockage of the breathing passages to the lungs)
Drug ineffective
Dysaesthesia (abnormal sensation)
Haemoptysis (blood-stained sputum from the bronchi, larynx, trachea, or lungs)
Hypersensitivity
Burning sensation
Dyspnoea (difficult or laboured respiration)
Infection
Mucous membrane disorder (disease of mucous membrane)

40-49:

Abasia (inability to walk)
Alopecia (absence of hair from areas of the body)
Blood pressure increased
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Cardiopulmonary failure (cessation of normal circulation of the blood due to failure of the heart to contract)
Cough
Dyspepsia (indigestion)
Gastrointestinal disorder (functional problems of gastrointestinal tract)
Labile blood pressure (wildly fluctuating blood pressure)
Neuropathy peripheral (surface nerve damage)

50-59:

Dyspnoea (difficult or laboured respiration)
Hypercapnia (too much smoke)

60+:

Hallucination (an experience involving the perception of something not present)
Malaise (a feeling of general discomfort or uneasiness)
Multi-organ failure (multisystem organ failure)
Photophobia (extreme sensitivity to light)
Aphagia (inability or refusal to swallow)
Asthenia (weakness)
Blood pressure decreased
Chromatopsia (visual defect in which colourless objects appear to be tinged with colour)
Circulatory collapse
Dehydration (dryness resulting from the removal of water)

What are the existing conditions these people have? *

Bronchopulmonary Aspergillosis (lung disorder caused by aspergillus fungi): 10 people, 43.48%
Pulmonary Aspergilloma (Mycetoma) (mass caused by a fungal infection that usually grows in lung): 3 people, 13.04%
Dyspnea (difficult or laboured breathing): 3 people, 13.04%
Neuropathy Peripheral (surface nerve damage): 2 people, 8.70%

* Approximation only. Some reports may have incomplete information.

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