Asa and Uniphyl drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Asa (aspirin) and Uniphyl (theophylline). Common drug interactions include asthma among females and drug-induced liver injury among males.

The phase IV clinical study analyzes what interactions people have when they take Asa and Uniphyl. 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 Asa?

Asa has active ingredients of aspirin. It is often used in blood clots. eHealthMe is studying from 32,557 Asa users. Check the latest studies of Asa.

What is Uniphyl?

Uniphyl has active ingredients of theophylline. eHealthMe is studying from 3,086 Uniphyl users. Check the latest studies of Uniphyl.

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, 27, 2026

19 people who take Asa and Uniphyl together, and have interactions are studied.

What are the common drug interactions of Asa and Uniphyl, by gender? *:

female:

Asthma
Arthralgia (joint pain)
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Crepitations (noises are produced by the rubbing of parts one against the other)
Cystitis (inflammation of the wall of the bladder)
Diarrhoea
Dizziness
Dyspnoea at rest (difficult or laboured breathing during rest)
Dyspnoea exertional (breathlessness or shortness of breath)
Erythema (redness of the skin)

male:

Drug-induced liver injury (diseases of the liver that are caused by physician-prescribed medications)

What are the common drug interactions of Asa and Uniphyl, 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
Arthralgia (joint pain)
Asthma
Back pain
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Chest discomfort
Crepitations (noises are produced by the rubbing of parts one against the other)
Cystitis (inflammation of the wall of the bladder)
Diarrhoea
Dizziness

60+:

Asthma
Back pain
Increased upper airway secretion
Intervertebral disc protrusion (spinal disc protrusion)
Lung hyperinflation (inspiration of more than normal)
Malaise (a feeling of general discomfort or uneasiness)
Nerve compression
Obstructive airways disorder (a progressive disease that makes it hard to breathe)
Pneumonia
Rib fracture

What are the existing conditions these people have? *

Asthma: 18 people, 94.74%
Muscle Spasms (muscle contraction): 14 people, 73.68%
Inflammation: 14 people, 73.68%
Dyspnea (difficult or laboured breathing): 14 people, 73.68%
Cough: 14 people, 73.68%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 5 people, 26.32%
Psoriasis (immune-mediated disease that affects the skin): 4 people, 21.05%

* Approximation only. Some reports may have incomplete information.

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