
These images are for illustrative purposes only.
Amoxicillin for Dogs And Cats
Amoxicillin 500 mg · 90 capsules · SKU PREP-DOG-AMOX-90
BUNDLE & SAVE
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 is a broad penicillin-class antibiotic a veterinarian may prescribe for dogs and cats.1 It is dispensed only after a vet reviews and prescribes your order.
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 amoxicillin is used for in dogs and cats
Amoxicillin is a broad, commonly used antibiotic prescribed for a range of bacterial infections, including some skin, soft-tissue, and urinary infections. Whether it’s the right choice for your dog or cat. And at what dose, is a decision for the prescribing veterinarian, based on the specific infection, your dog or cat’s weight and history, and what the vet finds appropriate. We don’t diagnose or dose; we dispense what the vet prescribes.
Dosage for dogs: your vet sets it
Amoxicillin for dogs is dosed by body weight, and only your veterinarian sets the exact dose for your dog. Your veterinarian sets the exact dose for your pet based on weight, condition, and health history — we never publish or set doses. We don’t set doses. Your prescribing vet does, and the label on your order reflects their instructions.
Side effects to watch for
Most dogs tolerate amoxicillin well. The most common side effects are digestive: mild vomiting, diarrhea, or loss of appetite. Giving it with food often helps. Stop and call your vet if your dog shows signs of an allergic reaction (facial swelling, hives, trouble breathing), severe or bloody diarrhea, or unusual lethargy. Tell your vet if your dog has had a reaction to penicillin-type drugs before, since amoxicillin is in that family.
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 amoxicillin 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
- Merck Veterinary Manual. Antimicrobial drugs used in dogs and cats. Reference for veterinary antimicrobial selection.
- FDA Center for Veterinary Medicine. Prescription and over-the-counter animal drugs.
References support the general statements above and are pending veterinary reviewer confirmation of per-claim mapping.
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 is a broad, commonly used antibiotic prescribed for a range of bacterial infections, including some skin, soft-tissue, and urinary infections. Whether it fits your dog or cat is the prescribing vet’s decision.
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.
Other questions? Visit our Help Center ›












