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

Summary:

Drug interactions are reported among people who take Singulair (montelukast sodium) and Dynacirc (isradipine). Common drug interactions include dyspnoea among females and back pain among males.

The phase IV clinical study analyzes what interactions people have when they take Singulair and Dynacirc. It is created by eHealthMe based on reports of 20 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Dynacirc?

Dynacirc has active ingredients of isradipine. eHealthMe is studying from 975 Dynacirc users. Check the latest studies of Dynacirc.

On Jul, 08, 2026

20 people who take Singulair and Dynacirc together, and have interactions are studied.

Singulair and Dynacirc drug interactions.

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

female:

Dyspnoea (difficult or laboured respiration)
Fatigue (feeling of tiredness)
Muscular weakness (muscle weakness)
Abdominal pain
Aphasia (damage to the parts of the brain that control language)
Blood creatinine increased
Blood potassium increased
Blood pressure decreased
Blood urea increased
Bradycardia (abnormally slow heart action)

male:

Back pain
Disease progression
Antinuclear antibody positive
Blood pressure increased
Cardiovascular disorder (heart diseases)
Diarrhoea
Gastrointestinal arteriovenous malformation (malformation of arteries and veins in gastrointestinal tract)
Haematochezia (passage of stools containing blood)
Lymphadenopathy mediastinal (an enlargement of the lymph nodes in the part of the chest that separates the lungs)
Microcytic anaemia (a generic term for any type of anaemia characterized by small red blood cells)

What are the common drug interactions of Singulair and Dynacirc, 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:

Back pain
Disease progression

60+:

Dyspnoea (difficult or laboured respiration)
Abdominal pain
Hypotension (abnormally low blood pressure)
Hypovolaemic shock (shock caused by severe blood or fluid loss)
Injection site haemorrhage (bleeding from injection site)
Muscle haemorrhage (bleeding in muscle)
Myoglobin blood increased (presence of myoglobin in blood increased)
Pallor
Rash
Renal failure (kidney dysfunction)

What are the existing conditions these people have? *

Lung Carcinoma Cell Type Unspecified Stage 0 (the lung cancer has not spread beyond the inner lining of the lung): 2 people, 10.00%
Lung Cancer - Non-Small Cell (lung cancer): 2 people, 10.00%
High Blood Pressure: 2 people, 10.00%
Heart Attack: 2 people, 10.00%
Glioblastoma Multiforme (most common and deadliest of malignant primary brain tumours in adults): 2 people, 10.00%
Respiratory Tract Infection Bacterial: 1 person, 5.00%
Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

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