Kalydeco and Ergocalciferol drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Kalydeco (ivacaftor) and Ergocalciferol (ergocalciferol). Common drug interactions include forced expiratory volume decreased among females and infective pulmonary exacerbation of cystic fibrosis among males.

The phase IV clinical study analyzes what interactions people have when they take Kalydeco and Ergocalciferol. It is created by eHealthMe based on reports of 11 people who take the same drugs from the FDA, and is updated regularly.

What is Kalydeco?

Kalydeco has active ingredients of ivacaftor. eHealthMe is studying from 6,652 Kalydeco users. Check the latest studies of Kalydeco.

What is Ergocalciferol?

Ergocalciferol has active ingredients of ergocalciferol. It is often used in rickets. eHealthMe is studying from 32,652 Ergocalciferol users. Check the latest studies of Ergocalciferol.

On Jul, 08, 2026

11 people who take Kalydeco and Ergocalciferol together, and have interactions are studied.

Kalydeco and Ergocalciferol drug interactions.

What are the common drug interactions of Kalydeco and Ergocalciferol, by gender? *:

female:

Forced expiratory volume decreased (decreased lung expired air volume)
Hypophagia (reduced food intake)
Intentional self-injury
Suicidal ideation
Pulmonary congestion (congestion in the lungs)
Abdominal pain upper
Asthenia (weakness)
Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection)
Chest pain
Chronic sinusitis (long lasting inflammation of the paranasal sinuses)

male:

Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Distal ileal obstruction syndrome (blockage of the intestines by thickened stool and occurs in individuals with cystic fibrosis)
Fall
Hyperglycaemia (high blood sugar)
Hypoglycaemia (deficiency of glucose in the bloodstream)
Joint swelling
Pancreatitis (inflammation of pancreas)

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

0-1:

n/a

2-9:

Osteomyelitis (infection of bone)

10-19:

Cystic fibrosis (disease of the secretary glands)
Depression
Forced expiratory volume decreased (decreased lung expired air volume)
Hypophagia (reduced food intake)
Intentional self-injury
Suicidal ideation
Weight decreased
Transaminases increased

20-29:

Fall
Hyperglycaemia (high blood sugar)
Hypoglycaemia (deficiency of glucose in the bloodstream)
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Joint swelling

30-39:

Distal ileal obstruction syndrome (blockage of the intestines by thickened stool and occurs in individuals with cystic fibrosis)
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)

40-49:

Abdominal pain upper
Haemoptysis (blood-stained sputum from the bronchi, larynx, trachea, or lungs)
Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
Nausea (feeling of having an urge to vomit)
Nephrolithiasis (calculi in the kidneys)
Presyncope
Pulmonary embolism (blockage of the main artery of the lung)
Pyrexia (fever)
Weight decreased
Asthenia (weakness)

50-59:

Pancreatitis (inflammation of pancreas)

60+:

n/a

What are the existing conditions these people have? *

Cystic Fibrosis (disease of the secretary glands): 11 people, 100.00%
Respiratory Tract Inflammation: 1 person, 9.09%
Respiratory Disorder (respiratory disease): 1 person, 9.09%
Pseudomonas Infection (pseudomonas infection is caused by a bacterium, pseudomonas aeruginosa): 1 person, 9.09%
Nausea (feeling of having an urge to vomit): 1 person, 9.09%
Cystic Fibrosis Lung (fibrosis with cyst in the lung): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

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