Azithromycin Dihydrate
Also sold as Azithromycin Dihydrate, azithromycin dihydrate
Medicine summary · from official FDA labels · Oct 19, 2026
What it’s used for
Azithromycin tablets are a macrolide antibacterial drug indicated for mild to moderate infections caused by designated, susceptible bacteria: Acute bacterial exacerbations of chronic bronchitis in adults ( 1. 1 ) Acute bacterial sinusitis in adults ( 1.
How to take it
Adult Patients ( 2. 1 ) Infection Recommended Dose / Duration of Therapy Community-acquired pneumonia (mild severity) Pharyngitis/tonsillitis (second-line therapy) Skin/skin structure (uncomplicated) 500 mg as a single dose on Day 1, followed by 250 mg once daily on Days 2 through 5.
Important warnings
Serious (including fatal) allergic and skin reactions: Discontinue azithromycin if reaction occurs. ( 5.
Common side effects
The following clinically significant adverse reactions are described elsewhere in labeling: Hypersensitivity [see WARNINGS AND PRECAUTIONS ( 5. 1 )] Hepatotoxicity [see WARNINGS AND PRECAUTIONS ( 5.
Interactions
Nelfinavir: Close monitoring for known adverse reactions of azithromycin, such as liver enzyme abnormalities and hearing impairment, is warranted.
If pregnant or breastfeeding
8.
Forms & strengths
250 MG Oral Capsule · 40 MG/ML Oral Suspension · 500 MG Injection · 600 MG Oral Tablet · 500 MG Oral Tablet · 20 MG/ML Oral Suspension · 250 MG Oral Tablet · 33.3 MG/ML Oral Suspension · 10 MG/ML Ophthalmic Solution · 1000 MG Oral Suspension
Questions to ask your doctor or pharmacist
- Is this the right medicine for my condition, and how long should I take it?
- What side effects should I watch for, and which need urgent attention?
- Does this interact with my other medicines, supplements, or alcohol?
- What should I do if I miss a dose or take too much?