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Amoxicillin-Clavulanate for Dogs And Cats
Amoxicillin-clavulanate 375 mg (250 mg amoxicillin + 125 mg clavulanate) · 90 tablets · SKU PREP-DOG-AMOXCLAV-375-90
STRENGTH
TABLETS
Already have a prescription from your own vet?
You can attach it and our pharmacist will verify it, or just place your order and our licensed veterinarian will write one for you at no extra cost.
Quick answer: Amoxicillin-clavulanate is a narrow-spectrum penicillin-class antibiotic a veterinarian may prescribe for dogs and cats with susceptible infections. It is dispensed only after a vet reviews and prescribes your order.1
Starting a course? Use our antibiotic treatment tracker to log each dose, stay on schedule, and know when it’s time to call the vet.
What penicillin is used for in dogs and cats
Amoxicillin-clavulanate is a narrow-spectrum, penicillin-class antibiotic a veterinarian may prescribe for dogs and cats with susceptible bacterial infections — commonly certain skin, soft-tissue, dental, and streptococcal infections. It is one of the oldest and best-characterized antibiotics in veterinary medicine.1
It is not a first choice for infections caused by penicillinase-producing bacteria, and it is not appropriate for every infection — which is exactly why a veterinarian, not a website, decides whether it fits your pet.
Dosage for dogs: your vet sets it
Amoxicillin-clavulanate for dogs is dosed by body weight and set by your veterinarian, who chooses the dose based on what’s being treated. We don’t set doses; the label reflects your prescribing vet’s instructions. Never adjust the dose yourself.
Side effects to watch for
Most dogs and cats tolerate penicillin well. The most common effects are mild digestive upset (vomiting, diarrhea, reduced appetite). The important one is allergic reaction: hives, facial swelling, or difficulty breathing are an emergency — stop the medication and contact a veterinarian immediately. Tell your vet about any prior reaction to penicillin, amoxicillin, or cephalexin, because these are related drugs.2
How ordering works
There is no public checkout. When you reserve this item, a licensed veterinarian reviews your order and issues the prescription if it’s appropriate, then our pharmacy confirms your delivery details and sends a secure payment link before anything ships. If the vet decides it’s not right for your dog or cat, the order isn’t filled and you’re not charged.
Why order from a licensed pharmacy
Most sites selling penicillin for dogs and cats are affiliates or gray-market sellers. We are a licensed, vet-staffed pharmacy: a veterinarian reviews and prescribes every order, so your dog or cat gets a real prescription and a properly dispensed medication.
Sources & References
For educational use. PrepperPetSupply is a licensed, veterinarian-staffed pharmacy; prescriptions are dispensed only after review by a licensed veterinarian and are not a substitute for in-person veterinary care. Not for human use.
Never give a dog or cat antibiotics intended for aquarium fish or another species. Products are made and dosed for a specific animal; the wrong drug or dose can seriously harm your dog or cat. The safe route is a medication a veterinarian has prescribed for your specific dog or cat.
You may be wondering
Do I need a prescription?
Yes. But you don’t have to arrange it yourself. A licensed veterinarian reviews your order and prescribes it, then we dispense it legally. If it’s not right for your dog or cat, the order isn’t filled and you’re not charged.
What is it used for?
Amoxicillin-clavulanate is prescribed for skin, soft-tissue, dental, and urinary infections in dogs and cats, when a veterinarian judges it appropriate.
What dose should I give?
We don’t provide dosing. The correct dose depends on your dog or cat’s weight and condition and is set by the prescribing veterinarian. Follow the prescription exactly.
Do I get exactly what I see on this site?
We can not guarantee a specific manufacturer when you place an order. The medication you receive may look different, but the drug, strength, and ingredients are the same.
How is my order shipped?
Orders ship in plain packaging with delivery in 10–14+ business days. You’ll get status updates by email along the way.
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