Azithromycin 500mg
Generic For: Zithromax
Azithromycin 500mg (brand name Zithromax) is a prescription macrolide antibiotic used to treat bacterial infections such as pneumonia, sinus infections, strep throat, and chlamydia. If you're wondering where to buy azithromycin, it is not available over the counter in the U.S. — a prescription is required. After a licensed provider reviews your order, your medication ships from a licensed U.S. pharmacy.
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5-day supply · $4.00/tablet
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Price: $20.00
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Buy Azithromycin 500mg (Zithromax) Online
A macrolide antibiotic for respiratory infections, sinus infections, and chlamydia
Azithromycin 500mg Quick Facts
| Drug class | Macrolide antibiotic |
|---|---|
| Treats | Respiratory infections, sinus infections, strep throat, chlamydia |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth daily for 5 days. |
| Prescription required | Yes — prescription only |
What Is Azithromycin 500mg?
Azithromycin is a macrolide antibiotic that works by stopping the growth of susceptible bacteria. It is commonly prescribed for respiratory tract infections, skin infections, and certain sexually transmitted infections. Many people ask if you can get azithromycin over the counter — you cannot; it requires a valid prescription in the United States. The cost without insurance varies, and ordering through a licensed U.S. pharmacy after provider review can be a convenient, affordable option.
What Does Azithromycin 500mg Treat?
Community-acquired pneumonia
Acute bacterial sinusitis
Acute bacterial exacerbations of chronic bronchitis
Pharyngitis and tonsillitis (strep throat)
Uncomplicated skin and skin structure infections
Urethritis and cervicitis due to chlamydia
Acute otitis media (pediatric)
Azithromycin 500mg Dosage
Pneumonia/pharyngitis/skin infections: 500 mg by mouth on day 1, then 250 mg once daily on days 2–5
Acute bacterial sinusitis: 500 mg by mouth once daily for 3 days
Chlamydia (urethritis/cervicitis): 1 g by mouth as a single dose
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Azithromycin 500mg Side Effects
Common side effects
- Diarrhea
- Nausea
- Abdominal pain
- Vomiting
- Headache
- Dizziness
- Rash
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Severe allergic reactions (anaphylaxis, angioedema)
- QT prolongation or irregular heartbeat
- Severe skin reactions (Stevens-Johnson syndrome, DRESS)
- Liver problems (jaundice, hepatitis, liver failure)
- Clostridioides difficile-associated diarrhea
Warnings & Interactions
Do not use if allergic to azithromycin, erythromycin, or other macrolides
Do not use if you have a history of cholestatic jaundice or liver problems with prior azithromycin use
Use caution with QT-prolonging drugs, known QT prolongation, or low potassium/magnesium
May worsen symptoms of myasthenia gravis
Stop and seek care if severe or persistent diarrhea occurs, even weeks after treatment
Tell your provider about all medications, including antacids, warfarin, and antiarrhythmics
Take the full prescribed course even if you feel better
Tell your prescriber about all medications, supplements, and health conditions before starting azithromycin 500mg.
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