Augmentin (Amoxicilina + Ácido Clavulánico): Precio, Dosis, y Dónde Comprarlo en Farmacia en 2026

Augmentin is a combination antibiotic containing amoxicillin and clavulanic acid, widely prescribed for bacterial infections ranging from sinusitis to pneumonia. Whether you’re filling a prescription in the United States or Latin America, understanding the price landscape can save you real money. In the U.S., generic Augmentin (amoxicilina) starts at roughly $9.37 with a coupon, while in Mexican and Central American pharmacies, the precio can range from $14 to over $768 MXN depending on the presentation and retailer.

This guide breaks down everything you need to know about buying Augmentin at a farmacia — from how the drug works and proper dosage, to price comparisons across multiple pharmacy platforms and practical tips for getting the best deal. Think of this as the advice a pharmacist friend would give you over coffee.

What Exactly Is Augmentin? The Key Entities You Should Know

Augmentin is a brand-name antibiotic manufactured by GlaxoSmithKline (GSK) that combines two active ingredients — amoxicillin trihydrate and potassium clavulanate — to fight a broader range of bacteria than amoxicillin alone. Before diving into prices and pharmacies, let’s define the five core entities you’ll encounter throughout this article:

Amoxicilina (Amoxicillin): A penicillin-type antibiotic that kills bacteria by disrupting their cell wall synthesis. It’s one of the most commonly prescribed antibiotics worldwide.
Ácido Clavulánico (Clavulanic Acid / Potassium Clavulanate): A beta-lactamase inhibitor. Some bacteria produce enzymes called beta-lactamases that destroy amoxicillin before it can work. Clavulanic acid blocks those enzymes, restoring amoxicillin’s effectiveness.
GlaxoSmithKline (GSK): The pharmaceutical company that developed and patents the Augmentin brand. Generic versions are widely available under the name amoxicillin/potassium clavulanate.
GoodRx: A U.S.-based platform that aggregates pharmacy prices and offers discount coupons, often reducing Augmentin costs by 50–80% compared to retail.
Farmacia San Nicolás: A Central American online pharmacy chain offering Augmentin at competitive prices with VIP membership discounts and free shipping.

Understanding these entities helps you navigate the sometimes confusing world of brand versus generic medications and international pricing differences.

Augmentin Precio: How Much Does It Cost at Different Pharmacies?

The price of Augmentin varies dramatically depending on whether you’re buying the brand name or generic, your country, the dosage, and which farmacia you choose. In the U.S., the average retail price for 20 tablets of the 875mg/125mg generic version is about $35, but coupons can bring it down to under $14. In Latin America, prices range from approximately $14 USD for a 10-tablet box to $768 MXN (around $44 USD) for a 20-tablet box.

U.S. Pharmacy Price Comparison (Generic Augmentin 875mg/125mg, 20 Tablets)

Pharmacy	Price with Coupon	Notes
Sam’s Club	$9.37	Lowest reported price; membership required
ShopRite (Online)	$11.36	GoodRx Gold price
Wegmans (Online)	$12.29	Special offers available
Costco	$17.49	No membership needed for pharmacy
Walmart	$18.63	Available at Neighborhood Markets too
CVS Pharmacy	$22.00	Special offers apply
Walgreens	$30.70	Standard coupon price

Source: GoodRx Augmentin pricing page, prices last updated March 2026. All prices are for cash-paying customers and do not reflect insurance copays.

Latin American Pharmacy Prices

Farmacia	Presentation	Price	Currency
Farmacia San Nicolás	500mg/125mg × 10 tablets	$14.01 (VIP: $12.43)	USD
Vida Farmacias (Mexico)	500mg/125mg × 20 tablets	$768.00	MXN
QueFarmacia (Mexico)	Various presentations	$222.00	MXN

Here’s a pro tip that most people miss: Farmacia San Nicolás offers a tiered pricing system. Their standard price is $14.01, but VIP members pay $12.43, and customers with the San Nicolás Agrícola card pay just $11.90. That’s a 32% discount from the original $17.51 price — simply for having a loyalty card.

How Does Augmentin Work and How Should You Take It?

Augmentin works through a dual-action mechanism: amoxicillin kills bacteria by preventing them from building their cell walls, while clavulanic acid disables the bacterial enzymes that would otherwise destroy the amoxicillin. Think of it as a one-two punch — the clavulanic acid acts as a bodyguard for the amoxicillin, ensuring it reaches its target intact.

This combination makes Augmentin effective against a wider spectrum of bacteria than amoxicillin alone, including many strains that have developed resistance to standard penicillin antibiotics. The drug is particularly effective against common pathogens found in everyday infections and hospital settings.

How to take Augmentin properly:

Take it at the start of a meal. This is one of the most overlooked tips. Absorption improves significantly when the medication is taken with food, and it also reduces gastrointestinal side effects like nausea and diarrhea.
Space your doses evenly. If prescribed three times daily, take doses approximately every 8 hours. If twice daily (for the 875mg strength), space them 12 hours apart.
Complete the full course. Even if you feel better after a few days, stopping early can lead to antibiotic resistance and a recurring infection.
Never exceed 14 days without a medical reevaluation. If symptoms persist beyond your prescribed course, contact your doctor rather than extending treatment on your own.
Avoid alcohol. Alcohol can inhibit Augmentin’s effectiveness and worsen side effects.

Augmentin Dosage Guide

Augmentin dosage depends on the type and severity of infection, the patient’s age, weight, and kidney function. Adults typically take either 500mg/125mg three times daily or 875mg/125mg twice daily, while children receive weight-based dosing as an oral suspension.

Standard Dosage by Age Group

Patient Group	Form	Dosage	Frequency
Adults (mild/moderate infections)	Tablets	500mg/125mg	Every 8 hours (3× daily)
Adults (severe infections)	Tablets	875mg/125mg	Every 12 hours (2× daily)
Children (0–12 years)	Oral Suspension	25 mg/kg/day	Divided into 3 doses daily

Important: This table is for informational purposes only. Always follow your doctor’s specific prescription. Dosages may be adjusted based on kidney function, infection severity, and other individual factors.

Available Presentations

Tablets: 250mg/125mg, 500mg/125mg, and 875mg/125mg — available in boxes of 10, 14, or 20 tablets depending on the market.
Oral Suspension: Multiple concentrations including 200mg/28.5mg per 5ml, 250mg/62.5mg per 5ml, 400mg/57mg per 5ml, and 600mg/42.9mg per 5ml — available in bottles ranging from 40ml to 200ml.
Chewable Tablets: 200mg/28.5mg and 400mg/57mg — primarily designed for pediatric patients who can’t swallow standard tablets.

Pros and Cons of Augmentin

Augmentin is one of the most widely prescribed antibiotics globally, but like any medication, it comes with both advantages and drawbacks. Here’s an honest assessment based on clinical data and real-world pharmacy information:

Pros	Cons
Broad-spectrum coverage against many common bacteria	Gastrointestinal side effects (diarrhea, nausea, vomiting) affect roughly 1 in 10 patients
Clavulanic acid overcomes bacterial resistance mechanisms	Cannot be used by patients allergic to penicillins or cephalosporins
Available in multiple forms (tablets, suspension, chewable) for different age groups	May reduce effectiveness of oral contraceptives
Considered low-risk during pregnancy and lactation per the FDA and WHO	Risk of liver dysfunction/jaundice, especially with repeated use
Generic versions are widely available and affordable	Candidiasis (yeast infections) can develop as a side effect
Covered by 79% of U.S. insurance plans	Interaction with allopurinol increases risk of skin rash
Well-established safety profile with decades of clinical use	Requires a prescription — cannot be purchased over the counter

What this means for you: Augmentin is a reliable workhorse antibiotic that handles most common infections effectively. The main trade-off is digestive discomfort, which you can minimize by always taking it with food at the start of a meal.

Complete Product Price Table by Dosage

Here’s a comprehensive breakdown of Augmentin pricing across all major tablet dosages and oral suspension forms, comparing retail prices to discounted coupon prices available in the United States.

Tablet Formulations

Dosage	Quantity	Retail Price	Coupon Price	Savings
250mg/125mg	14 tablets	$54.40	$24.12	56% off
500mg/125mg	20 tablets	$67.34	$18.81	72% off
875mg/125mg	20 tablets	$35.31	$13.79	61% off

Oral Suspension Formulations

Dosage	Quantity	Retail Price	Coupon Price
200mg/28.5mg per 5ml	50ml (1 bottle)	$31.55	$6.90
200mg/28.5mg per 5ml	100ml (1 bottle)	$69.50	$9.75
400mg/57mg per 5ml	100ml (1 bottle)	$96.46	$19.73
600mg/42.9mg per 5ml	125ml (1 bottle)	$70.66	$21.67
250mg/62.5mg per 5ml	75ml (1 bottle)	$71.20	$25.01

Data sourced from GoodRx and Drugs.com price guide. Prices are subject to change and may vary by location.

A lesser-known savings strategy worth mentioning: the 875mg/125mg tablets are actually cheaper than the 500mg/125mg tablets in most U.S. pharmacies. If your doctor agrees, pill splitting on the higher dose could save you money — though you should never split extended-release, enteric-coated, or capsule formulations.

Benefits of Buying Augmentin Online

Purchasing Augmentin through an online farmacia or pharmacy platform can offer meaningful advantages in price, convenience, and access — especially for patients in remote areas or those managing chronic conditions that require repeated prescriptions.

Price transparency: Online platforms like GoodRx allow you to compare prices across dozens of pharmacies instantly. In many cases, the online coupon price is 50–80% lower than the walk-in retail price.
Home delivery: Services like GoodRx Home Delivery offer Augmentin for as low as $15.80 shipped directly to your door. This is particularly valuable for elderly patients or those with mobility issues.
Loyalty and VIP programs: Online pharmacies like Farmacia San Nicolás offer tiered pricing. Their VIP card costs just $5.65 and unlocks discounts on Augmentin and hundreds of other medications — a small investment that pays for itself with a single purchase.
Stock notifications: When a medication is temporarily out of stock (as noted on Vida Farmacias for the 500mg/125mg presentation), online platforms let you subscribe for instant restock alerts so you never miss availability.
Prescription verification from home: Many online farmacias accept digital prescriptions. You simply upload a photo of your prescription during checkout, eliminating the need for an extra trip to a physical location.
Access to multiple markets: Depending on your location, you may find better pricing by comparing pharmacies across different regions or countries, especially within Latin America where Augmentin amoxicilina precio can vary significantly from one farmacia to another.

One practical caveat: always verify that the online pharmacy is properly licensed. In Mexico, look for Cofepris certification. In the U.S., check for VIPPS accreditation or LegitScript certification. Reputable platforms like Vida Farmacias prominently display their ISO 9001:2015 and LegitScript certifications, which is a good sign.

Augmentin Alternatives

If Augmentin isn’t available, is too expensive, or isn’t suitable due to allergies, several alternative antibiotics can treat similar infections. Your doctor will choose the best option based on the type of bacteria involved and your medical history.

Amoxicillin alone: If the infection is caused by bacteria that don’t produce beta-lactamase enzymes, plain amoxicillin is significantly cheaper and may be equally effective.
Cephalexin (Keflex): A first-generation cephalosporin that covers many of the same infections. It’s generally well-tolerated, though patients with severe penicillin allergies should use it with caution.
Cefdinir: A third-generation cephalosporin with broader coverage, often used for ear infections and sinusitis when Augmentin isn’t an option.
Sulfamethoxazole/Trimethoprim (Bactrim): A non-penicillin alternative useful for urinary tract infections and some skin infections. It’s a good choice for patients with penicillin allergies.
Levofloxacin: A fluoroquinolone reserved for more serious infections or when other antibiotics have failed. It carries a higher risk of side effects and is typically not a first-line choice.
Clavulin: In some Latin American markets, this is another brand name for the same amoxicillin/clavulanic acid combination. The precio at your local farmacia may differ from Augmentin, so it’s worth comparing.
Metronidazole: Used for anaerobic bacterial infections and often prescribed alongside other antibiotics rather than as a direct Augmentin replacement.

The bottom line: generic amoxicillin/potassium clavulanate is the most cost-effective alternative to brand-name Augmentin. It contains the identical active ingredients at a fraction of the precio. In the U.S., the generic version can cost as little as $9.37 compared to the brand-name Augmentin oral suspension that starts at over $635 for 75 milliliters, as listed on Drugs.com.

Final Thoughts: Getting the Best Value on Augmentin

Whether you’re searching for Augmentin amoxicilina at a farmacia in Mexico City or comparing coupon prices at Walgreens, the key takeaway is that you should never pay full retail price for this medication. Generic versions are bioequivalent to the brand name, discount coupons are free and widely available, and loyalty programs at online pharmacies can stack additional savings.

Always consult your doctor before starting any antibiotic, complete your full prescribed course, and take each dose at the beginning of a meal for optimal absorption and fewer side effects. With the right approach, treating a bacterial infection with Augmentin doesn’t have to strain your budget.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication. Prices referenced in this article are subject to change and may vary by location.