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

Summary:

Drug interactions are reported among people who take Singulair (montelukast sodium) and Ferrous fumarate (ferrous fumarate). Common drug interactions include infusion site swelling among females and cd4 lymphocytes decreased among males.

The phase IV clinical study analyzes what interactions people have when they take Singulair and Ferrous fumarate. It is created by eHealthMe based on reports of 64 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 Ferrous fumarate?

Ferrous fumarate has active ingredients of ferrous fumarate. It is often used in anemia. eHealthMe is studying from 9,840 Ferrous fumarate users. Check the latest studies of Ferrous fumarate.

On Jul, 21, 2026

64 people who take Singulair and Ferrous fumarate together, and have interactions are studied.

Singulair and Ferrous fumarate drug interactions.

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

female:

Infusion site swelling
Local reaction (reaction of any substance at the site of use)
Menopause (end of monthly cycles in women)
Ocular discomfort (a generic expression when there is lack of ease in/about the eyes)
Palpitations (feelings or sensations that your heart is pounding or racing)
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Dyspnoea (difficult or laboured respiration)
Malaise (a feeling of general discomfort or uneasiness)
Pneumonia
Weight decreased

male:

Cd4 lymphocytes decreased
Cough
Maternal exposure during pregnancy (use of substance during pregnancy)
Anaemia (lack of blood)
Brain natriuretic peptide increased
Corona virus infection (infection caused by a corona virus)
Fall
Fluid retention (an abnormal accumulation of fluid in the blood)
Memory impairment
Nasopharyngitis (inflammation of the nasopharynx)

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

0-1:

n/a

2-9:

Abdominal pain
Abdominal pain upper
Abdominal tenderness
Adenoidal hypertrophy (enlarged adenoids)
Allergy to animal
Appendicitis (inflammation of the appendix)
Blood pressure decreased
Cough
Dyspnoea (difficult or laboured respiration)
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters)

10-19:

n/a

20-29:

n/a

30-39:

Dyspnoea (difficult or laboured respiration)
Back pain
Blood pressure increased
Chest discomfort
Cough
Forced expiratory volume decreased (decreased lung expired air volume)
Headache (pain in head)
Heart rate increased
Injection site haemorrhage (bleeding from injection site)
Malaise (a feeling of general discomfort or uneasiness)

40-49:

Malaise (a feeling of general discomfort or uneasiness)
Injection site irritation
Drug hypersensitivity
Dyspnoea (difficult or laboured respiration)
Forced expiratory volume decreased (decreased lung expired air volume)
Hospitalisation
Sleep disorder

50-59:

Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Cystitis (inflammation of the wall of the bladder)
Disorientation (disability in which the senses of time, direction, and recognition of people and places)
Dizziness
Dyspnoea (difficult or laboured respiration)
Emotional distress
Erythema (redness of the skin)
Eye discharge
Fatigue (feeling of tiredness)
Headache (pain in head)

60+:

Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Hyperglycaemia (high blood sugar)
Pain
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Forced expiratory volume decreased (decreased lung expired air volume)
Weight decreased
Arthralgia (joint pain)
Arthritis (form of joint disorder that involves inflammation of one or more joints)
Blood pressure systolic increased
Chest pain

What are the existing conditions these people have? *

Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 14 people, 21.88%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 14 people, 21.88%
Type 2 Diabetes: 10 people, 15.62%
Mental Disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability): 8 people, 12.50%
Intraocular Pressure Test Abnormal: 6 people, 9.38%
Blood Potassium Decreased: 6 people, 9.38%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 6 people, 9.38%
Constipation: 6 people, 9.38%
Faeces Hard: 6 people, 9.38%
High Blood Pressure: 6 people, 9.38%

* Approximation only. Some reports may have incomplete information.

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