Hydrochlorothiazide and Cayston drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Hydrochlorothiazide (hydrochlorothiazide) and Cayston (aztreonam). Common drug interactions include insomnia among females and ventricular pre-excitation among males.

The phase IV clinical study analyzes what interactions people have when they take Hydrochlorothiazide and Cayston. It is created by eHealthMe based on reports of 44 people who take the same drugs from the FDA, and is updated regularly.

What is Hydrochlorothiazide?

Hydrochlorothiazide has active ingredients of hydrochlorothiazide. It is often used in high blood pressure. eHealthMe is studying from 182,194 Hydrochlorothiazide users. Check the latest studies of Hydrochlorothiazide.

What is Cayston?

Cayston has active ingredients of aztreonam. It is often used in cystic fibrosis. eHealthMe is studying from 5,310 Cayston users. Check the latest studies of Cayston.

On Jul, 07, 2026

44 people who take Hydrochlorothiazide and Cayston together, and have interactions are studied.

Hydrochlorothiazide and Cayston drug interactions.

What are the common drug interactions of Hydrochlorothiazide and Cayston, by gender? *:

female:

Insomnia (sleeplessness)
Fatigue (feeling of tiredness)
Abdominal pain upper
Ageusia (loss of taste functions of the tongue)
Chest discomfort
Dyspnoea (difficult or laboured respiration)
Headache (pain in head)
Hypersensitivity
Hypoglycaemia (deficiency of glucose in the bloodstream)
Nasal congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels)

male:

Ventricular pre-excitation
Rash maculo-papular (red area on the skin that is covered with small confluent bumps)
Drug rash with eosinophilia and systemic symptoms (adverse drug reactions with rash)
Dyspnoea (difficult or laboured respiration)
Hypersensitivity
Lip swelling
Lung transplant
Nasopharyngitis (inflammation of the nasopharynx)
Pruritus (severe itching of the skin)
Throat tightness

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Infection
Productive cough

30-39:

Hospitalisation
Respiratory syncytial virus infection (viral disease of respiratory system)

40-49:

Influenza
Pneumonia
Sepsis (a severe blood infection that can lead to organ failure and death)

50-59:

Rash maculo-papular (red area on the skin that is covered with small confluent bumps)
Thrombocytopenia (decrease of platelets in blood)
Leukocytosis (increased white blood cells)
Eosinophilia (eosinophil count in the peripheral blood exceeds)
Chronic sinusitis (long lasting inflammation of the paranasal sinuses)

60+:

Ventricular pre-excitation
Insomnia (sleeplessness)
Nasal congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels)
Respiratory tract congestion (blockage on respiratory system)
Sinus headache (headache caused by sinus infections)
Sinusitis (inflammation of sinus)
Upper-airway cough syndrome
Disturbance in attention
Body temperature increased
Drug rash with eosinophilia and systemic symptoms (adverse drug reactions with rash)

What are the existing conditions these people have? *

Sedation: 25 people, 56.82%
Type 2 Diabetes: 21 people, 47.73%
Seizures (abnormal excessive or synchronous neuronal activity in the brain): 21 people, 47.73%
Diabetes: 5 people, 11.36%
Cystic Fibrosis Lung (fibrosis with cyst in the lung): 3 people, 6.82%
Cough: 3 people, 6.82%

* Approximation only. Some reports may have incomplete information.

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