Amoxicillin for Cats: Dosage Chart By Weight

Amoxicillin for cats, also known as aminopenicillin, is a well-known antibiotic medication mainly used to treat bacterial infections such as urinary tract, respiratory tract, gastrointestinal infections, and skin issues, such as acute moist dermatitis and pyoderma in felines. So How much Amoxicillin is safe for cats, and what is Amoxicillin for cats dosage chart by weight.

Amoxicillin is a well-known veterinary medicine, and veterinarians often prescribe it off the label to address bacterial infection in cats. However, many cat parents often receive certain pet medications without knowing about the safe dose and safe serving ideas and harm their tom or queen instead of helping them. 

Knowing about the safe Amoxicillin dosage for cats is essential for every pet owner. This article is a complete and comprehensive guide about the use of Amoxicillin (Aminopenicillin) for felines. Reading this article until the end will solve all your queries about using this antibiotic drug for your kitty. 

Do you Know? Amoxicillin antibiotic is not approved by FDA for pet use but still veterinarians around the world often prescribe it for cats due to its tonic health properties.

What is Amoxicillin For Cats?

Amoxicillin is a gram-positive antibiotic medicine that helps your cat fight against certain bacterial infections such as UTI and bladder infections, respiratory tract, gastrointestinal infections, and skin-related issues in felines. 

This antibiotic drug binds directly to certain parts of the cell membrane that are infected by bacteria and fight to stop and inhibit the development of the cell wall and thus weaken the kills staphylococcus and streptococcus bacteria stability and kill them.

Here an important thing to be noted is that there are many varieties of antibiotics Amoxicillin available, so your veterinarian can better decide which one will be safe for your kitty. The most commonly used Amoxicillin medicine for cats is amoxicillin-clavulanate brand Clavamox.  

Is Amoxicillin Safe for Cats?

Yes, in an ideal and safe dose Amoxicillin is safe for your cat. However, overdosing or giving it incorrectly is toxic for the felines. Make sure to follow your veterinarian’s prescription to avoid health complications. 

How much Amoxicillin is safe for cats?

The ideal and safe dose of Amoxicillin tablet for cats is  5-10 mg/lb or 10-15 mg/kg, and liquid oral suspension is 2-9 ml/lb every 12-24 hours. However, some veterinarians may prescribe every 8-10 hours. The amoxicillin dosage may vary from cats to cats and depends on several factors, including size, body weight, the severity of the disease, and overall health condition of the feline. 

To know about amoxicillin dosage for cats by weight, please look at the below dosage chart by weight. 

Amoxicillin Dosage Calculator For Cats

Amoxicillin for cats Dosage Chart by weight

Cat  Weight  in kg
Cat  Weight  in lbsAmoxicillin (tablet dose for cats)Liquid Amoxicillin dosage for cats
2 kg4.4lb20-30mg8-36ml
3kg6.6lb30-45mg12-50ml
4kg8.8lb40-60mg16-70ml
5kg11lb50-75mg20-90ml
6kg13lb60-90mg25-110ml

Please note that the above Amoxicillin for cats dosage Chart is well researched but can only be used for educational purposes and will not replace your veterinarian prescription and advice.

Your Veterinarian can better decide about the safe dose of any medication, including Amoxicillin for cats, after observing your feline physically. 

In how many forms Amoxicillin is available?

Amoxicillin usually comes in both pills and liquid suspension forms. The tablets typically come in 50, 100, 150, 200, and 400 mg, while the liquid oral suspension usually comes in 50-mg/ml. 

Amoxicillin uses for Cats

Amoxicillin uses for Cats

Amoxicillin is used to treat many feline health issues, but the most common problems in which veterinarians often prescribe the medicine off-label are listed below.

Common illnesses in which Amoxicillin is given to cats are:

  • Respiratory and urinary tract infections
  • Gastrointestinal infections
  • Ear infections
  • Balder infections
  • Skin issues, such as acute moist dermatitis and pyoderma

Potential Side effects of Amoxicillin for cats

Every medicine include antibiotic may have mild to severe side effects. Over dosing is toxic however Giving the medicine in the safe amount will not harm your kitty however amoxicillin can cause the  below mentioned side effects in your tom or queen. 

  • Vomiting and diarrhea
  • Change in poop color
  • Allergic reactions
  • Rashes and fever,
  • Swelling of the nose or Mouth
  • Kidney or liver damage (Rare Cases)

How to Give Amoxicillin to Cats?

Every feline medication needs proper administration. Incorrectly giving any medicine to your pet will harm more than benefit.

  • The best and ideal way to give Amoxicillin to Cats is to follow your vet’s guidelines and prescription.
  • Do not overdose on the medicine. Only give the safe and ideal dose by weight or as prescribed by your veterinarian.
  • You can give the tablet  Amoxicillin to your Cats directly or by hiding it in your kitty food.
  • The ideal way to give the oral suspension amoxicillin is to provide it by the syringe in the mouth. 
  • Make sure to wash your hands before and after giving the medication.
  • Make sure to keep all the medicine away from the children and your pet reach.  
  • Only stop the antibiotic with your vet’s prescription to avoid antibiotic resistance. 

Amoxicillin for cats without vet Prescription

vet with cat

Giving Amoxicillin to your cat without your veterinarian’s prescription is not considered safe and ideal. Your veterinarian can better decide the safe dose of Amoxicillin for your feline after observing the severity of the illness and your cat physically. Make sure to give any medication to your kitty with vet advice only. 

Amoxicillin Dosage for Newborn kittens

Newborn kittens are susceptible to antibiotics. Finding the safe dosage of Amoxicillin for the kitten is a challenging task. Your veterinarian may help prescribe the antibiotic dose for your kitty after observing physically. Give your kitty Amoxicillin or any other antibiotic with your vet’s advice only. 

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