Visudyne and Allegra drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Visudyne (verteporfin) and Allegra (fexofenadine hydrochloride). Common drug interactions include thrombocytopenia among females and cerebral infarction among males.

The phase IV clinical study analyzes what interactions people have when they take Visudyne and Allegra. It is created by eHealthMe based on reports of 18 people who take the same drugs from the FDA, and is updated regularly.

What is Visudyne?

Visudyne has active ingredients of verteporfin. eHealthMe is studying from 3,124 Visudyne users. Check the latest studies of Visudyne.

What is Allegra?

Allegra has active ingredients of fexofenadine hydrochloride. It is often used in allergies. eHealthMe is studying from 75,498 Allegra users. Check the latest studies of Allegra.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 17, 2026

18 people who take Visudyne and Allegra together, and have interactions are studied.

What are the common drug interactions of Visudyne and Allegra, by gender? *:

female:

Thrombocytopenia (decrease of platelets in blood)
Dyspnoea (difficult or laboured respiration)
Injection site extravasation (flow of (blood or lymph) from injection site)
Abdominal discomfort
Albumin urine present
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anaphylactic reaction (serious allergic reaction)
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight)
Asthenia (weakness)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)

male:

Cerebral infarction (less blood supply to brain resulting tissue damage)
Hepatic enzyme increased
Retinal haemorrhage (bleeding from retina)
Visual acuity reduced (reduced clearness of vision)
Arthralgia (joint pain)
Chest pain
Ear pain
Hallucination (an experience involving the perception of something not present)
Hearing impaired
Nasopharyngitis (inflammation of the nasopharynx)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Back pain
Blood pressure increased
Chest pain
Dyspnoea (difficult or laboured respiration)
Neck pain
Skin warm

50-59:

n/a

60+:

Thrombocytopenia (decrease of platelets in blood)
Cerebral infarction (less blood supply to brain resulting tissue damage)
Asthenia (weakness)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Blood glucose increased
Blood thyroid stimulating hormone decreased
Blood uric acid increased
Cardiac failure congestive
Chest pain
Confusional state

What are the existing conditions these people have? *

Macular Degeneration (painless eye condition that leads to the gradual loss of central vision): 13 people, 72.22%

* Approximation only. Some reports may have incomplete information.

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