Amoxicillin Dosage for Dogs By Weight Chart
The recommended dosage of amoxicillin for dogs is 5 mg per pound of body weight, given twice a day. Amoxicillin is meant to be continued for 5–7 days or 48 hours after all symptoms have subsided.

It is important to note that these guidelines are just general recommendations and may need to be adjusted based on the specific needs of the individual dog. It is always best to consult with a veterinarian to determine the appropriate dose for your pet.
Amoxicillin for dogs dosage chart
The dosage will vary based on the weight and overall health of the dog, as well as the severity of the infection being treated.
Dog’s weight (lbs) | Amoxicillin dosage (tablet) |
---|---|
5 lbs | 1/2 tablet of 50 mg |
10 lbs | 1 tablet of 50 mg |
20 lbs | 1 tablet of 100 mg |
30 lbs | 1 and 1/2 tablets of 100 mg |
40 lbs | 1 tablet of 200 mg |
50 lbs | 1 tablet of 250 mg |
60 lbs | 1 and 1/2 tablets of 200 mg |
70 lbs | 1 tablet of 400 mg |
80 lbs | 1 tablet of 400 mg |
90 lbs | 1 tablet of 400 mg |
100 lbs | 1 tablet of 500 mg |
Amoxicillin for dogs reviews
Amoxicillin is a commonly prescribed antibiotic for dogs. It is effective against a wide range of bacterial infections, including skin infections, respiratory infections, and urinary tract infections.
Pros:
Amoxicillin is a broad-spectrum antibiotic, meaning it can treat a wide range of bacterial infections.
It is relatively affordable and widely available.
It is generally well-tolerated by dogs, with few side effects.
Cons:
Some dogs may experience side effects, such as diarrhea, vomiting, or loss of appetite.
Amoxicillin can interact with other medications, so it is important to inform your veterinarian about any other medications your dog is taking.
Amoxicillin is not effective against infections caused by viruses or parasites.
Side effects:
The most common side effects of amoxicillin in dogs are diarrhea, vomiting, and loss of appetite.
Less common side effects include allergic reactions, such as hives or swelling, and changes in behavior, such as agitation or lethargy.
Adverse reactions:
In rare cases, amoxicillin can cause more serious adverse reactions, such as liver damage or kidney failure.
If your dog experiences any severe side effects or adverse reactions, contact your veterinarian immediately.
Drug interactions:
Amoxicillin can interact with other medications, including certain anti-seizure medications, blood thinners, and non-steroidal anti-inflammatory drugs (NSAIDs).
Always inform your veterinarian about any other medications your dog is taking to avoid potential drug interactions.
Contraindications:
Amoxicillin is contraindicated in dogs with a known allergy to penicillin or other beta-lactam antibiotics.
It should also be used with caution in dogs with liver or kidney disease.
How long does it take for amoxicillin to work in dogs?
In general, it takes about 1 to 2 hours for amoxicillin to start working in dogs after it is administered orally. However, the exact time it takes for the medication to take effect can vary depending on a number of factors, including the type and severity of the infection, the weight of the dog, and the individual dog’s metabolism.
It’s important to note that amoxicillin is not effective against all types of bacteria. In order for the medication to be effective, the infection must be caused by a type of bacteria that is susceptible to amoxicillin.
In addition to oral administration, amoxicillin can also be given intravenously (IV) in cases where the infection is severe or if the dog is unable to take medication by mouth. IV administration allows the medication to be delivered directly into the bloodstream, which can help to speed up its effectiveness.
Can too much amoxicillin hurt a dog?
One of the potential risks of giving too much amoxicillin to a dog is an overdose. This can occur if the dog accidentally ingests too many tablets, or if the owner accidentally gives the dog an incorrect dose.
An overdose of amoxicillin can lead to serious side effects, such as vomiting, diarrhea, loss of appetite, and depression. In some cases, an overdose can even be life-threatening.
Another potential risk of giving too much amoxicillin to a dog is the development of antibiotic resistance. When bacteria are exposed to antibiotics, they can develop mechanisms to resist the drug. This means that the bacteria can continue to grow and multiply, even in the presence of the antibiotic. Over time, this can lead to the development of antibiotic-resistant bacteria, which can be difficult to treat.
To avoid these risks, it is important to carefully follow the instructions provided by your veterinarian when giving amoxicillin to your dog. This will ensure that your dog receives the correct dose and that the antibiotic is used in a safe and effective manner.
Where can I buy amoxicillin for dogs?
Amoxicillin for dogs can be purchased at most pet stores and online retailers that sell pet medications. Here is a list of some of the best ones:
- Petco
- PetSmart
- Walmart Pet Rx
- Chewy
- Tractor Supply Rx
- Allivet
You can also buy Amoxicillin at a local pharmacy or veterinary clinic.
Can I get antibiotics for my dog without seeing a vet?
Fish Antibiotics: Fish antibiotics are commonly used to treat bacterial infections in dogs. These antibiotics are available in tablet or capsule form and can be found at most pet stores or online. Some popular fish antibiotics for dogs include Amoxicillin, Cephalexin, and Doxycycline.
Topical Antibiotics: Topical antibiotics are applied directly to the skin and can be used to treat a variety of skin infections. They are available in creams, ointments, and sprays and can be found at most pet stores or online. Some popular topical antibiotics for dogs include Neosporin, Polysporin, and Bacitracin.
Herbal Antibiotics: Herbal antibiotics are a natural alternative to traditional antibiotics and can be used to treat a variety of bacterial infections. They are available in tinctures, capsules, and teas and can be found at most health food stores or online. Some popular herbal antibiotics for dogs include Echinacea, Goldenseal, and Garlic.
It is important to note that antibiotics should only be used under the guidance and supervision of a veterinarian. They should not be used as a first-line treatment and should not be used to treat viral infections. If your dog is showing signs of a bacterial infection, it is important to seek veterinary care as soon as possible to ensure proper diagnosis and treatment.
Can I use human amoxicillin for my dog?
While it is possible for a veterinarian to prescribe human amoxicillin for a dog, there are several potential downsides to using the human form of the medication.
Pros:
Amoxicillin is a relatively affordable and accessible medication.
It is a broad-spectrum antibiotic, meaning it can effectively treat a wide range of bacterial infections.
Cons:
Human amoxicillin may not be the most appropriate antibiotic for a dog’s specific infection, and using the wrong antibiotic can lead to treatment failure or antibiotic resistance.
Dosages for human and animal medication differ, using human amoxicillin may lead to an overdose or underdose of the medication which could be harmful to the dog.
Human amoxicillin may not be formulated or packaged in a way that is safe or appropriate for use in dogs.
It is always better to consult a veterinarian before giving any medication to your pet. They will be able to provide the appropriate dosage and guide you through the treatment process.
FAQs about amoxicillin dose for dogs chart
Here’s a list of FAQs about amoxicillin dosage for dogs, along with their answers.
1. What is amoxicillin, and how does it work on dogs?
Amoxicillin is an antibiotic medication that is commonly prescribed for dogs to treat bacterial infections. It works by preventing the bacteria from growing and multiplying, ultimately killing them off.
2. How is amoxicillin dosage for dogs determined?
The dosage of amoxicillin for dogs is usually determined by the dog’s weight, age, and overall health condition. In general, the recommended dosage is 5 mg per pound of body weight, given orally every 12 hours.
3. Can I give my dog amoxicillin without a prescription?
No, it is not recommended to give your dog amoxicillin without a prescription from a licensed veterinarian. Dosage and frequency should be prescribed by a vet after evaluating your dog’s health condition and overall health history.
4. How long should I give amoxicillin to my dog?
The duration of amoxicillin treatment for dogs depends on the severity of the infection being treated. Typically, the medication should be given for at least 7-10 days, and the full course of antibiotics should be completed, even if the symptoms of the infection have subsided.
5. What are the possible side effects of amoxicillin for dogs?
Some of the common side effects of amoxicillin in dogs include gastrointestinal issues such as diarrhea, vomiting, and lack of appetite. More severe side effects can include allergic reactions, difficulty breathing, and anaphylaxis. If you notice any unusual symptoms, stop giving the medication immediately and contact your veterinarian.
6. What should I do if I miss a dose of amoxicillin for my dog?
If you miss a dose of amoxicillin for your dog, give the missed dose as soon as you remember, unless it’s close to the next scheduled dose. In that case, skip the missed dose and continue with the regular dosing schedule. Do not double the dose to make up for the missed one.
7. Can amoxicillin interact with other medications my dog is taking?
Amoxicillin can interact with other medications, so it’s essential to inform your veterinarian about any other medications or supplements your dog is currently taking before starting amoxicillin. Common interactions include decreased effectiveness of birth control pills and the increased risk of bleeding when taking anticoagulant medications.
8. Can amoxicillin be used to treat all types of bacterial infections in dogs?
No, amoxicillin is not effective against all types of bacterial infections. It is most commonly used to treat infections in the skin, urinary tract, and respiratory system. However, it may not be effective against certain types of bacteria or infections that are caused by viruses or fungi.
9. Can amoxicillin be used for puppies and senior dogs?
Yes, amoxicillin can be used for both puppies and senior dogs, but dosage may need to be adjusted based on their age and weight. However, it is essential to consult with your veterinarian before administering the medication to any dog, especially for puppies and senior dogs who may have underlying health conditions.
10. How should I store amoxicillin for my dog?
It is recommended to store amoxicillin in a cool, dry place, away from direct sunlight, heat, and moisture. It is essential to keep the medication out of reach of children and pets.
11. What should I do if my dog experiences an allergic reaction to amoxicillin?
If your dog experiences an allergic reaction to amoxicillin, stop administering the medication immediately and contact your veterinarian. Signs of an allergic reaction can include difficulty breathing, facial swelling, hives, or other symptoms of an allergic reaction.
12. Can I give my dog a higher dose of amoxicillin to speed up the recovery process?
No, it is not recommended to give your dog a higher dose of amoxicillin than prescribed by your veterinarian. The dosage and frequency are based on your dog’s weight, age, and health condition, and changing the dosage can lead to adverse side effects or a lack of effectiveness.
13. How can I ensure that my dog takes the full course of amoxicillin medication?
To ensure that your dog completes the full course of antibiotics, it is essential to administer the medication at the same time every day and for the full recommended duration. You can also mix the medication with your dog’s food or a treat to make it more palatable for them.
14. Can amoxicillin cause stomach upset in dogs?
Yes, amoxicillin can cause stomach upset in dogs, which can result in symptoms such as diarrhea, vomiting, and lack of appetite. If your dog experiences stomach upset while taking amoxicillin, it is recommended to administer the medication with food or a treat to reduce the likelihood of gastrointestinal issues.
15. Can amoxicillin be used for dogs with kidney or liver problems?
Yes, amoxicillin can be used for dogs with kidney or liver problems, but the dosage may need to be adjusted based on the severity of the condition. It is essential to consult with your veterinarian before administering the medication to any dog with kidney or liver problems.
16. Can amoxicillin be used for pregnant or nursing dogs?
Yes, amoxicillin can be used for pregnant or nursing dogs, but the dosage may need to be adjusted based on the weight and age of the dog. It is essential to consult with your veterinarian before administering the medication to any pregnant or nursing dog.
17. Can amoxicillin be used for dogs with a weakened immune system?
Yes, amoxicillin can be used for dogs with a weakened immune system, but the dosage and duration may need to be adjusted based on the severity of the condition. It is essential to consult with your veterinarian before administering the medication to any dog with a weakened immune system.
18. Can amoxicillin be used for dogs with allergies or asthma?
Yes, amoxicillin can be used for dogs with allergies or asthma, but it is essential to monitor their symptoms closely while taking the medication. In some cases, amoxicillin can cause allergic reactions or worsen asthma symptoms, so it is important to consult with your veterinarian before administering the medication.
19. What should I do if my dog experiences severe side effects from amoxicillin?
If your dog experiences severe side effects from amoxicillin, such as difficulty breathing, seizures, or anaphylaxis, stop administering the medication immediately and contact your veterinarian or an emergency animal hospital. Severe side effects can be life-threatening and require immediate medical attention.