Active Ingredient

Azithromycin

Azithromycin is an antibiotic used to treat a variety of bacterial infections. It belongs to the macrolide class of antibiotics, which work by stopping the growth of bacteria.

This medication is often prescribed for infections affecting the respiratory tract, skin, and other parts of the body.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Azithromycin Brands

Azithromycin DT

Strengths 100mg

Azee DT

Strengths 100 mg

Azeetop

Strengths 500mg

Azee

Strengths 250 mg, 500 mg, 1000 mg

Zithromax

Strengths 100mg, 250mg, 500mg, 1000 mg

Azipro

Strengths 250mg, 500mg

Azithromycin Uses

Azithromycin is commonly used to treat bacterial infections. It is effective against a variety of bacteria and is often prescribed for:

Respiratory tract infections such as bronchitis and pneumonia
Ear infections
Skin and soft tissue infections
Throat infections like tonsillitis
Certain sexually transmitted infections

How Azithromycin Works

Azithromycin works by interfering with the protein synthesis of bacteria, which is essential for their growth and reproduction. By binding to the bacterial ribosome, it prevents bacteria from producing proteins they need to thrive.

This action helps to stop the spread of infection and allows the immune system to eliminate the bacteria.

Common side effects of Azithromycin

While not everyone experiences side effects, some people may encounter mild and temporary symptoms. Common side effects include:

Nausea
Diarrhea
Abdominal pain
Vomiting
Dizziness
Headache
Rash

If you experience serious or persistent symptoms, contact your healthcare provider.

Inform your doctor about any allergies or pre-existing conditions before starting azithromycin.
Avoid mixing with alcohol as it may increase the risk of side effects.
Monitor for any signs of allergic reactions, such as rash or swelling, and seek medical attention if they occur.
Do not take antacids within a few hours of azithromycin, as they may affect absorption.
Complete the full course of azithromycin even if you feel better to prevent resistance.

Always consult your healthcare provider for personalized advice.

Frequently Asked Questions

What is Azithromycin used for?

Azithromycin is used to treat various bacterial infections, including those affecting the respiratory tract, skin, and sexually transmitted infections.

How quickly does Azithromycin work?

Azithromycin starts working soon after you take it, but it may take a few days to notice an improvement in symptoms.

Can I take Azithromycin with food?

Yes, azithromycin can be taken with or without food. Taking it with food may help reduce stomach upset.

Are there any interactions with Azithromycin?

Azithromycin can interact with certain medications and supplements. Inform your doctor about all the medications you are taking.

Is Azithromycin safe during pregnancy?

If you are pregnant or planning to become pregnant, consult your healthcare provider to discuss the potential risks and benefits of using azithromycin.