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

Summary:

Drug interactions are reported among people who take Stadol (butorphanol tartrate) and Allegra (fexofenadine hydrochloride). Common drug interactions include abdominal pain among females and dependence among males.

The phase IV clinical study analyzes what interactions people have when they take Stadol 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 Stadol?

Stadol has active ingredients of butorphanol tartrate. It is often used in migraine. eHealthMe is studying from 5,546 Stadol users. Check the latest studies of Stadol.

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.

On Jul, 13, 2026

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

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

female:

Abdominal pain
Chest pain
Coma (state of unconsciousness lasting more than six hours)
Conjunctivitis infective (infection of the conjunctiva)
Dyspnoea (difficult or laboured respiration)
Ear discomfort
Fatigue (feeling of tiredness)
Hypotension (abnormally low blood pressure)
Injection site infection
Multiple sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)

male:

Dependence

What are the common drug interactions of Stadol 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:

Abdominal pain
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Enteritis (inflammation of the small intestine)
Gallbladder disorder
Gastritis (inflammation of stomach)
Pancreatitis (inflammation of pancreas)
Pancreatitis acute (sudden inflammation of pancreas)
Pancreatitis chronic (chronic inflammation of pancreas)
Renal failure acute (rapid kidney dysfunction)
Dependence

40-49:

Abdominal pain
Abscess (pus)
Carpal tunnel syndrome (nerve compression at wrist results numbness weakness, pain , swelling)
Chest pain
Coma (state of unconsciousness lasting more than six hours)
Conjunctivitis infective (infection of the conjunctiva)
Dyspnoea (difficult or laboured respiration)
Ear discomfort
Fatigue (feeling of tiredness)
Hypotension (abnormally low blood pressure)

50-59:

Cerebral infarction (less blood supply to brain resulting tissue damage)
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
Encephalopathy (functioning of the brain is affected by some agent or condition)
Headache (pain in head)
Pain

60+:

n/a

What are the existing conditions these people have? *

Pain: 7 people, 38.89%
Weight Decreased: 5 people, 27.78%
Irritable Bowel Syndrome: 5 people, 27.78%
Hypersensitivity: 5 people, 27.78%
Herpes Zoster: 5 people, 27.78%
Headache (pain in head): 5 people, 27.78%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 4 people, 22.22%
Insomnia (sleeplessness): 3 people, 16.67%
High Blood Pressure: 2 people, 11.11%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 11.11%

* Approximation only. Some reports may have incomplete information.

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