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

Summary:

Drug interactions are reported among people who take Allegra (fexofenadine hydrochloride) and Mirabegron (mirabegron). Common drug interactions include autonomic nervous system imbalance among females and constipation among males.

The phase IV clinical study analyzes what interactions people have when they take Allegra and Mirabegron. It is created by eHealthMe based on reports of 19 people who take the same drugs from the FDA, and is updated regularly.

What is Allegra?

Allegra has active ingredients of fexofenadine hydrochloride. It is often used in allergies. eHealthMe is studying from 75,497 Allegra users. Check the latest studies of Allegra.

What is Mirabegron?

Mirabegron has active ingredients of mirabegron. It is often used in urge incontinence. eHealthMe is studying from 5,414 Mirabegron users. Check the latest studies of Mirabegron.

On Jul, 18, 2026

19 people who take Allegra and Mirabegron together, and have interactions are studied.

Allegra and Mirabegron drug interactions.

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

female:

Autonomic nervous system imbalance (autonomic nervous system is of net equal emphasis)
Chest pain
Chronic kidney disease
Contusion (a type of hematoma of tissue in which capillaries)
Cystitis (inflammation of the wall of the bladder)
Death
Depression
Dry mouth
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters)
Fluid retention (an abnormal accumulation of fluid in the blood)

male:

Constipation
Drug ineffective

What are the common drug interactions of Allegra and Mirabegron, 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:

n/a

50-59:

Anxiety
Chronic kidney disease
Cystitis (inflammation of the wall of the bladder)
Depression
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters)
Hallucination (an experience involving the perception of something not present)
Hallucination, auditory (perceiving sounds without auditory stimulus)
Injury
Nephrogenic anaemia (anaemia due to kidney disease)
Pharyngotonsillitis (inflammation of the pharynx and the tonsils)

60+:

Colitis (inflammation of colon)
Diarrhoea
Fluid retention (an abnormal accumulation of fluid in the blood)
Hypokalaemia (low potassium)
Insomnia (sleeplessness)
Lung squamous cell carcinoma stage iii (lung cancer has spread to lymph nodes on the same side of the chest as the tumour. the lymph nodes with cancer are near the sternum (chest bone) or where the bronchus enters the lung)
Mental disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability)
Nightmare (unpleasant dream)
Pain
Pericardial effusion (fluid around the heart)

What are the existing conditions these people have? *

Diarrhea: 4 people, 21.05%
Stress And Anxiety: 4 people, 21.05%
Allergic Rhinitis: 4 people, 21.05%
Hypertonic Bladder (bladder-storage function that causes a sudden urge to urinate): 4 people, 21.05%
Constipation: 4 people, 21.05%
Muscle Spasms (muscle contraction): 3 people, 15.79%
Menopause (end of monthly cycles in women): 3 people, 15.79%
Hallucinations (sensations that appear real but are created by your mind): 3 people, 15.79%
Headache (pain in head): 3 people, 15.79%
Herpes Virus Infection: 3 people, 15.79%

* Approximation only. Some reports may have incomplete information.

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