Cephulac and Prilosec drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cephulac (lactulose) and Prilosec (omeprazole). Common drug interactions include hypoxia among females and death among males.

The phase IV clinical study analyzes what interactions people have when they take Cephulac and Prilosec. It is created by eHealthMe based on reports of 33 people who take the same drugs from the FDA, and is updated regularly.

What is Cephulac?

Cephulac has active ingredients of lactulose. eHealthMe is studying from 136 Cephulac users. Check the latest studies of Cephulac.

What is Prilosec?

Prilosec has active ingredients of omeprazole. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 175,286 Prilosec users. Check the latest studies of Prilosec.

On Aug, 09, 2026

33 people who take Cephulac and Prilosec together, and have interactions are studied.

Cephulac and Prilosec drug interactions.

What are the common drug interactions of Cephulac and Prilosec, by gender? *:

female:

Hypoxia (low oxygen in tissues)
Malnutrition (a condition that results from eating a diet in which certain nutrients are lacking)
Mental status changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation)
Rhonchi (abnormal breath sounds)
Somnolence (a state of near-sleep, a strong desire for sleep)
Abnormal behaviour
Acute respiratory failure
Acute sinusitis
Balance disorder
Bile duct obstruction (blockage in the tubes that carry bile from the liver to the gallbladder)

male:

Death
Chronic kidney disease
Dyspnoea exertional (breathlessness or shortness of breath)
Haemoptysis (blood-stained sputum from the bronchi, larynx, trachea, or lungs)
Hyperhidrosis (abnormally increased sweating)
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Influenza a virus test positive
Influenza b virus test positive
Osteoporosis (bones weak and more likely to break)
Pneumonia

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Chills (felling of cold)
Cough
Dyspnoea exertional (breathlessness or shortness of breath)
Haemoptysis (blood-stained sputum from the bronchi, larynx, trachea, or lungs)
Hyperhidrosis (abnormally increased sweating)
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)

30-39:

Abdominal pain
Anxiety
Dyspnoea (difficult or laboured respiration)
Emotional distress
General physical health deterioration (weak health status)
Injury
Pain
Pulmonary embolism (blockage of the main artery of the lung)

40-49:

Haemorrhage (bleeding)
Pneumonia
Anaemia (lack of blood)
Oedema peripheral (superficial swelling)
Atelectasis (partial or complete collapse of the lung)
Confusional state
Dizziness
Fatigue (feeling of tiredness)
Haemoglobin decreased
Melaena (the passage of black, tarry stools)

50-59:

Abdominal pain
Abnormal behaviour
Acute respiratory failure
Acute sinusitis
Anxiety
Balance disorder
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Cardiac disorder
Chest pain
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)

60+:

Choking (mechanical obstruction of the flow of air from the environment into the lungs)
Diarrhoea
Weight decreased
Bile duct obstruction (blockage in the tubes that carry bile from the liver to the gallbladder)
Cardiac failure congestive
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)
Influenza a virus test positive
Influenza b virus test positive
Jaundice cholestatic
Malignant ascites (a condition in which a person with cancer has an accumulation of fluid in the abdomen)

What are the existing conditions these people have? *

Oedema Peripheral (superficial swelling): 13 people, 39.39%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 12 people, 36.36%
Thrombosis (formation of a blood clot inside a blood vessel): 4 people, 12.12%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 4 people, 12.12%
Pain: 3 people, 9.09%
Constipation: 3 people, 9.09%
Nausea And Vomiting: 2 people, 6.06%
Nausea (feeling of having an urge to vomit): 2 people, 6.06%
Infection: 2 people, 6.06%
Hepatocellular Carcinoma (liver cancer): 2 people, 6.06%

* Approximation only. Some reports may have incomplete information.

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