Ms contin and Theo-dur drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Ms contin (morphine sulfate) and Theo-dur (theophylline). Common drug interactions include ileus paralytic among females and interstitial lung disease among males.

The phase IV clinical study analyzes what interactions people have when they take Ms contin and Theo-dur. It is created by eHealthMe based on reports of 24 people who take the same drugs from the FDA, and is updated regularly.

What is Ms contin?

Ms contin has active ingredients of morphine sulfate. It is often used in pain. eHealthMe is studying from 69,289 Ms contin users. Check the latest studies of Ms contin.

What is Theo-dur?

Theo-dur has active ingredients of theophylline. It is often used in asthma. eHealthMe is studying from 4,451 Theo-dur users. Check the latest studies of Theo-dur.

On Jul, 17, 2026

24 people who take Ms contin and Theo-dur together, and have interactions are studied.

Ms contin and Theo-dur drug interactions.

What are the common drug interactions of Ms Contin and Theo-Dur, by gender? *:

female:

Ileus paralytic (obstruction of the intestine due to paralysis of the intestinal muscles)
Infusion site erythema (reddening of the skin at infusion site)
Infusion site mass
Infusion site warmth
Liver disorder (liver diseases)
Oesophagitis (inflammation of oesophagus)
Psychomotor seizures (complex partial seizures)
Upper respiratory tract infection
Swelling
Cough

male:

Interstitial lung disease
Pneumonia
Pneumocystis jiroveci pneumonia (fungal infection of the lungs)
Renal failure acute (rapid kidney dysfunction)
Sepsis (a severe blood infection that can lead to organ failure and death)
Stridor
Candida pneumonia (infection of lung by candida)
Dilatation ventricular
Dyspnoea (difficult or laboured respiration)
Hypoxic encephalopathy (a condition that occurs when the entire brain is deprived of an adequate oxygen supply, but the deprivation isn't total)

What are the common drug interactions of Ms Contin and Theo-Dur, 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:

Swelling
Type 2 diabetes mellitus
Vomiting
Disease progression
Dyspnoea (difficult or laboured respiration)
Platelet count decreased
Anaemia (lack of blood)
Bipolar disorder (mood disorder)
Candidiasis (candidiasis or thrush is a fungal infection)
Coronary artery disease (plaque building up along the inner walls of the arteries of the heart, which narrows the arteries and restricts blood flow to the heart)

50-59:

Cough
Anaphylactic shock (severe and rapid and sometimes fatal hypersensitivity reaction to a substance)
Angioedema (rapid swelling of the dermis)
Dyspnoea (difficult or laboured respiration)
Erythema (redness of the skin)
Hypotension (abnormally low blood pressure)
Hypoxia (low oxygen in tissues)
Pneumonia
Pruritus (severe itching of the skin)
Pruritus generalised (generalized itching)

60+:

Interstitial lung disease
Pneumonia
Pneumocystis jiroveci pneumonia (fungal infection of the lungs)
Renal failure acute (rapid kidney dysfunction)
Sepsis (a severe blood infection that can lead to organ failure and death)
Stridor
Candida pneumonia (infection of lung by candida)
Dilatation ventricular
Hypoxic encephalopathy (a condition that occurs when the entire brain is deprived of an adequate oxygen supply, but the deprivation isn't total)
Malignant neoplasm progression (cancer tumour came back)

What are the existing conditions these people have? *

Non-Small Cell Lung Cancer Stage Iiib: 4 people, 16.67%
Non-Small Cell Lung Cancer Recurrent (type of epithelial lung cancer reoccurrence): 4 people, 16.67%
Lung Adenocarcinoma Stage Iii (the cancer has spread to nearby tissue or too far away lymph nodes): 4 people, 16.67%
Cancer Pain: 4 people, 16.67%
Hypersensitivity: 3 people, 12.50%
Sleep Disorder: 2 people, 8.33%
Ovarian Cancer (cancer of ovary): 2 people, 8.33%
Nausea (feeling of having an urge to vomit): 2 people, 8.33%
Muscle Spasms (muscle contraction): 2 people, 8.33%
Itching: 2 people, 8.33%

* Approximation only. Some reports may have incomplete information.

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