Colistimethate and Singulair drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Colistimethate (colistimethate sodium) and Singulair (montelukast sodium). Common drug interactions include infective pulmonary exacerbation of cystic fibrosis among females and cystic fibrosis among males.

The phase IV clinical study analyzes what interactions people have when they take Colistimethate and Singulair. It is created by eHealthMe based on reports of 66 people who take the same drugs from the FDA, and is updated regularly.

What is Colistimethate?

Colistimethate has active ingredients of colistimethate sodium. eHealthMe is studying from 1,502 Colistimethate users. Check the latest studies of Colistimethate.

What is Singulair?

Singulair has active ingredients of montelukast sodium. It is often used in asthma. eHealthMe is studying from 129,752 Singulair users. Check the latest studies of Singulair.

On Aug, 01, 2026

66 people who take Colistimethate and Singulair together, and have interactions are studied.

Colistimethate and Singulair drug interactions.

What are the common drug interactions of Colistimethate and Singulair, by gender? *:

female:

Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Infection
Cystic fibrosis (disease of the secretary glands)
Dyspnoea (difficult or laboured respiration)
Hospitalisation
Insomnia (sleeplessness)
Respiratory tract infection viral
Abdominal pain upper
Acute sinusitis
Anxiety

male:

Cystic fibrosis (disease of the secretary glands)
Infection
Cough
Dermatitis psoriasiform (large white or silver flakes on the skin)
Drug ineffective
Eosinophilia (eosinophil count in the peripheral blood exceeds)
Fatigue (feeling of tiredness)
Forced expiratory volume decreased (decreased lung expired air volume)
Hospitalisation
Influenza

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

0-1:

n/a

2-9:

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

10-19:

Infection
Chest pain
Cystic fibrosis (disease of the secretary glands)
Drug ineffective
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Multiple-drug resistance
Pseudomonas infection (pseudomonas infection is caused by a bacterium, pseudomonas aeruginosa)
Pulmonary function test decreased
Respiratory disorder (respiratory disease)
Serratia infection (bacterial infection)

20-29:

Cystic fibrosis (disease of the secretary glands)
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Hospitalisation
Abdominal pain
Adverse reaction
Cough
Death
Dermatitis psoriasiform (large white or silver flakes on the skin)
Dyspnoea (difficult or laboured respiration)
Influenza

30-39:

Abdominal pain upper
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Acute sinusitis
Anxiety
Chest discomfort
Constipation
Drug hypersensitivity
Dysphonia (speech disorder attributable to a disorder of phonation)
Dyspnoea (difficult or laboured respiration)
Dyspnoea exertional (breathlessness or shortness of breath)

40-49:

Cystic fibrosis (disease of the secretary glands)
Pneumonia
Cataract (clouding of the lens inside the eye)
Influenza
Post procedural infection
Sepsis (a severe blood infection that can lead to organ failure and death)
Thyroid cancer

50-59:

Pyrexia (fever)
Respiratory tract congestion (blockage on respiratory system)
Respiratory tract infection
Rheumatoid arthritis (a chronic progressive disease causing inflammation in the joints)
Tendonitis (a condition that causes pain and swelling of tendons)
Arthralgia (joint pain)
Asthenia (weakness)
Cough
Dyspnoea (difficult or laboured respiration)
Fatigue (feeling of tiredness)

60+:

Arrhythmia (irregular heartbeat)
Atrial flutter (an abnormal heart rhythm that occurs in the atria of the heart)
Cardiac disorder

What are the existing conditions these people have? *

Cystic Fibrosis (disease of the secretary glands): 49 people, 74.24%
Pseudomonas Infection (pseudomonas infection is caused by a bacterium, pseudomonas aeruginosa): 9 people, 13.64%
Cystic Fibrosis Lung (fibrosis with cyst in the lung): 9 people, 13.64%
Allergic Rhinitis: 4 people, 6.06%

* Approximation only. Some reports may have incomplete information.

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