Azasite and Synthroid drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Azasite (azithromycin) and Synthroid (levothyroxine sodium). Common drug interactions include asthenia among females and dysphonia among males.

The phase IV clinical study analyzes what interactions people have when they take Azasite and Synthroid. It is created by eHealthMe based on reports of 59 people who take the same drugs from the FDA, and is updated regularly.

What is Azasite?

Azasite has active ingredients of azithromycin. It is often used in blepharitis. eHealthMe is studying from 1,370 Azasite users. Check the latest studies of Azasite.

What is Synthroid?

Synthroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 249,198 Synthroid users. Check the latest studies of Synthroid.

On Jul, 08, 2026

59 people who take Azasite and Synthroid together, and have interactions are studied.

Azasite and Synthroid drug interactions.

What are the common drug interactions of Azasite and Synthroid, by gender? *:

female:

Asthenia (weakness)
Disability
Essential tremor
Extrasystoles
Memory impairment
Muscle fatigue (a condition in which muscles cannot exert their normal force)
Myalgia (muscle pain)
Sinusitis (inflammation of sinus)
Tenosynovitis (inflammation of the fluid-filled sheath (called the synovium) that surrounds a tendon)
Visual impairment

male:

Dysphonia (speech disorder attributable to a disorder of phonation)
Chronic kidney disease
Dyspepsia (indigestion)
Nephrogenic anaemia (anaemia due to kidney disease)
Parkinson's disease
Renal failure (kidney dysfunction)
Renal injury (kidney injury)

What are the common drug interactions of Azasite and Synthroid, 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:

Abdominal pain
Arthralgia (joint pain)
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)

50-59:

Chronic kidney disease

60+:

Nausea (feeling of having an urge to vomit)
Eye irritation
Asthenia (weakness)
Disability
Extrasystoles
Hypotension (abnormally low blood pressure)
Muscle fatigue (a condition in which muscles cannot exert their normal force)
Myalgia (muscle pain)
Pneumonia
Therapeutic response unexpected

What are the existing conditions these people have? *

Sleep Disorder: 22 people, 37.29%
Dry Eyes (lack of adequate tears): 7 people, 11.86%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 10.17%
High Blood Pressure: 5 people, 8.47%
High Blood Cholesterol: 5 people, 8.47%
Cardiac Disorder: 4 people, 6.78%
Migraine (headache): 4 people, 6.78%
Stress And Anxiety: 4 people, 6.78%
Eye Disorder: 4 people, 6.78%
Dry Mouth: 3 people, 5.08%

* Approximation only. Some reports may have incomplete information.

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