Generic: Amoxicillin-Clavulanate
A stronger antibiotic for resistant infections — everything you need to know about how to take it, what to expect, and when to call us.
Text Chris — I Have a QuestionAugmentin is amoxicillin with a bodyguard. The base antibiotic (amoxicillin) kills bacteria by breaking down their cell walls. The added component (clavulanic acid) protects the antibiotic from bacteria that have learned to fight back. Some bacteria produce enzymes that destroy amoxicillin. Augmentin's extra ingredient stops those enzymes, so the antibiotic can do its job.
Your provider prescribed Augmentin instead of plain amoxicillin for a reason: your specific infection likely involves bacteria that need this extra firepower. It's one of the most commonly prescribed broad-spectrum antibiotics, and it's highly effective against resistant strains that plain amoxicillin can't touch. It's been used safely for decades.
The trade-off is that Augmentin tends to cause more stomach upset and diarrhea than plain amoxicillin — but that's manageable, especially if you take it with food. Your provider chose this because they believe the benefits outweigh the risks for your infection.
Augmentin is prescribed when bacteria are resistant to plain amoxicillin, or when you need broader coverage. Common uses include:
Often prescribed when standard antibiotics haven't worked or when resistant bacteria are suspected.
Read patient guide →Effective for bacterial ear infections that don't respond to simpler antibiotics.
Read patient guide →Strong option for dental infections and abscesses, especially polymicrobial infections.
Read patient guide →Used for pneumonia, bronchitis, and other lower respiratory infections caused by resistant bacteria.
Read patient guide →Taking Augmentin correctly is crucial for it to work well and to minimize side effects. Here's what you need to know:
| Detail | Instructions |
|---|---|
| Typical dose | 500mg/125mg or 875mg/125mg per dose |
| How often | Every 8 hours (500mg) or every 12 hours (875mg) |
| For how long | 7-10 days (your provider will specify based on your infection) |
| With food? | Strongly recommended — food significantly reduces stomach upset and diarrhea |
| Best time to take it | With meals, spaced evenly throughout the day. Take at the start of a meal for best absorption. |
| Liquid form | Shake well before each dose. Use a measuring syringe. Refrigerate. Discard after 10 days. |
Augmentin causes more GI side effects than plain amoxicillin — that's normal and usually temporary. But you should know what to watch for:
These usually appear in the first few days and often improve as your body adjusts. Taking it with a substantial meal helps significantly. Stay hydrated. If diarrhea gets severe, contact us before stopping the medication.
Stop taking Augmentin immediately and contact us or seek emergency care if you experience any of these. Do not wait them out.
If in doubt, text us or call 911. Don't wait it out. We're available for questions anytime.
Let your provider know about these situations before starting Augmentin:
Augmentin contains penicillin. If you have a documented serious penicillin allergy (anaphylaxis, Stevens-Johnson syndrome), you should not take Augmentin. Tell us specifically what happened. Mild reactions sometimes can be managed carefully, but true allergies are a no-go.
Augmentin can rarely cause liver injury (cholestatic jaundice). This is more common in older patients and in those taking it for long periods. Report yellowing of skin or eyes immediately. If you have a history of liver disease, tell us before starting.
Augmentin is generally considered safe during pregnancy (Category B). It's also safe while breastfeeding — only tiny amounts pass into breast milk. Always tell us you're pregnant or breastfeeding before starting any medication.
Some antibiotics reduce how well birth control works. The effect of Augmentin is minimal, but to be safe, use a backup contraception method (condoms) while taking it and for 7 days after you finish. Better safe than sorry.
Mention to your provider if you take: warfarin (blood thinner), methotrexate, probenecid, or other antibiotics. Augmentin can interact with these. Most interactions are manageable, but we want to know.
Here are answers to the questions we hear most often from patients about Augmentin: