Tequin and Doxycycline drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Tequin (gatifloxacin) and Doxycycline (doxycycline hyclate). Common drug interactions include insomnia among females and chronic kidney disease among males.

The phase IV clinical study analyzes what interactions people have when they take Tequin and Doxycycline. It is created by eHealthMe based on reports of 79 people who take the same drugs from the FDA, and is updated regularly.

What is Tequin?

Tequin has active ingredients of gatifloxacin. eHealthMe is studying from 4,645 Tequin users. Check the latest studies of Tequin.

What is Doxycycline?

Doxycycline has active ingredients of doxycycline hyclate. It is often used in acne. eHealthMe is studying from 60,866 Doxycycline users. Check the latest studies of Doxycycline.

On Jul, 09, 2026

79 people who take Tequin and Doxycycline together, and have interactions are studied.

Tequin and Doxycycline drug interactions.

What are the common drug interactions of Tequin and Doxycycline, by gender? *:

female:

Insomnia (sleeplessness)
Vomiting
Nausea (feeling of having an urge to vomit)
Pain in extremity
Bone disorder
Constipation
Drug hypersensitivity
Lung infiltration (a substance that normally includes fluid, inflammatory exudates or cells that fill a region of lung)
Oedema peripheral (superficial swelling)
Thrombocytopenia (decrease of platelets in blood)

male:

Chronic kidney disease
Renal failure (kidney dysfunction)
Back pain
Balance disorder
Blood glucose increased
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Cardiomegaly (increased size of heart than normal)
Chest discomfort
Chest pain
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Lung infiltration (a substance that normally includes fluid, inflammatory exudates or cells that fill a region of lung)
Actinomyces test positive
Acute psychosis (period of mentally unstable behaviour)
Acute respiratory distress syndrome
Agitation (state of anxiety or nervous excitement)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Asthenia (weakness)
Bone disorder
Breath odour
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)

30-39:

Chronic kidney disease
Depression
Insomnia (sleeplessness)
Renal disorder (kidney disease)
Renal failure (kidney dysfunction)

40-49:

Fatigue (feeling of tiredness)
Nausea (feeling of having an urge to vomit)
Amenorrhoea (absence of a menstrual period in a woman of reproductive age)
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight)
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Myalgia (muscle pain)
Autoimmune hepatitis
Cardiovascular disorder (heart diseases)
Chapped lips (cracking, fissuring, and peeling of the skin f lip)
Dysphagia (a condition in which swallowing is difficult or painful)

50-59:

Vomiting
Abnormal behaviour
Aspergillosis (an infection caused by a fungus called aspergillus)
Balance disorder
Cardiac disorder
Catheter site erythema (redness of skin at catheter site)
Chest pain
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Clostridium colitis (inflammation of colon by clostridium difficile bacteria infection)
Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)

60+:

Chronic kidney disease
Renal failure (kidney dysfunction)
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Fall
Insomnia (sleeplessness)
Joint dislocation (a joint position is changed from normal position)
Muscular weakness (muscle weakness)
Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)
Renal disorder (kidney disease)
Anaemia (lack of blood)

What are the existing conditions these people have? *

Pain: 17 people, 21.52%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 10 people, 12.66%
Stress And Anxiety: 9 people, 11.39%
Renal Cell Carcinoma (a kidney cancer): 9 people, 11.39%
Dyspnea (difficult or laboured breathing): 9 people, 11.39%
Pneumonia: 9 people, 11.39%
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters): 9 people, 11.39%
Irritable Bowel Syndrome: 9 people, 11.39%
Infection: 9 people, 11.39%
High Blood Cholesterol: 8 people, 10.13%

* Approximation only. Some reports may have incomplete information.

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