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

Summary:

Drug interactions are reported among people who take Allegra allergy (fexofenadine hydrochloride) and Buspar (buspirone hydrochloride). Common drug interactions include dizziness among females.

The phase IV clinical study analyzes what interactions people have when they take Allegra allergy and Buspar. It is created by eHealthMe based on reports of 37 people who take the same drugs from the FDA, and is updated regularly.

What is Allegra allergy?

Allegra allergy has active ingredients of fexofenadine hydrochloride. It is often used in allergies. eHealthMe is studying from 13,594 Allegra allergy users. Check the latest studies of Allegra allergy.

What is Buspar?

Buspar has active ingredients of buspirone hydrochloride. It is often used in stress and anxiety. eHealthMe is studying from 20,462 Buspar users. Check the latest studies of Buspar.

On Jul, 11, 2026

37 people who take Allegra allergy and Buspar together, and have interactions are studied.

Allegra allergy and Buspar drug interactions.

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

female:

Dizziness
Drug ineffective
Pollakiuria (abnormally frequent passage of relatively small quantities or urine)
Blood pressure increased
Sleep apnoea syndrome (a sleep-related disorder in which the effort to breathe is diminished or absent)
Arthralgia (joint pain)
Back disorder
Bowel movement irregularity
Breath holding
Chest discomfort

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

Dermatitis atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder)
Discomfort
Drug ineffective
Rash
Sleep disorder

20-29:

Fatigue (feeling of tiredness)
Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection)
Colitis ulcerative (inflammation of colon with ulcer)
Hypertonic bladder (bladder-storage function that causes a sudden urge to urinate)
Intervertebral disc protrusion (spinal disc protrusion)
Nephrolithiasis (calculi in the kidneys)
Rheumatoid arthritis (a chronic progressive disease causing inflammation in the joints)
Sciatica (a set of symptoms including pain caused by general compression or irritation of one of five spinal nerve roots of each sciatic nerve)
Somnolence (a state of near-sleep, a strong desire for sleep)
Synovial cyst (cyst of joint filled with synovial fluid)

30-39:

Hypotension (abnormally low blood pressure)
Pre-eclampsia (high blood pressure and significant amounts of protein in the urine of a pregnant woman)
Premature delivery
Injection site erythema (redness at injection site)
Injection site pain
Injection site urticaria (rash of round, red welts on the skin at injection site)

40-49:

Back injury
Partial seizures (seizures which affect only a part of the brain at onset)
Road traffic accident

50-59:

Cystitis interstitial (unknown cause characterized by bladder pain)
Pollakiuria (abnormally frequent passage of relatively small quantities or urine)
Fungal infection
Fatigue (feeling of tiredness)
Hypertension (high blood pressure)
Nervousness
Peripheral swelling
Vision blurred
Initial insomnia (feeling of inadequate or poor-quality sleep)
Dizziness

60+:

Death

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 34 people, 91.89%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 23 people, 62.16%
Hypersensitivity: 15 people, 40.54%
High Blood Pressure: 10 people, 27.03%
Asthma: 9 people, 24.32%
Thrombosis (formation of a blood clot inside a blood vessel): 7 people, 18.92%
Back Pain: 6 people, 16.22%
Muscle Aches (muscle pain): 6 people, 16.22%
Ill-Defined Disorder: 6 people, 16.22%
Hormone Level Abnormal: 6 people, 16.22%

* Approximation only. Some reports may have incomplete information.

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