Cephalexin for Dogs: Uses, Dosage, and Precautions


Cephalexin is a cephalosporin antibiotic commonly used to treat various bacterial infections in dogs. It is available under different brand names, including Keflex® and Rilexene®, and is known for its effectiveness in combating infections of the skin, respiratory tract, and urinary tract. This article will cover important information about cephalexin dosage, uses, and potential side effects for dogs.


 What is Cephalexin Used for in Dogs?


Cephalexin is used to treat a range of bacterial infections in dogs, including:


- **Skin infections**: Cephalexin is effective in treating pyoderma and other skin conditions caused by bacteria.

- **Respiratory tract infections**: Cephalexin can help treat bacterial infections in the respiratory system.

- **Urinary tract infections**: Cephalexin may be prescribed for urinary tract infections in dogs.


Cephalexin Dosage for Dogs


Cephalexin is available in various forms and dosages for dogs:


- **Tablets and capsules**: 75 mg, 150 mg, 300 mg, and 600 mg chewable tablets, as well as 250 mg and 500 mg tablets.

- **Liquid form**: Oral suspensions of 125 mg/5 mL (25 mg/mL) and 250 mg/5 mL (50 mg/mL).


The dosage prescribed by your veterinarian will depend on your dog's weight, the severity of the infection, and other factors. Always follow your veterinarian's instructions precisely and complete the full course of medication.


Cephalexin 500mg for Dogs


Cephalexin 500mg tablets are a common dosage for larger dogs. This dosage is typically used to treat moderate to severe infections and should be administered according to your veterinarian's instructions.


 Precautions and Side Effects


When giving cephalexin to your dog, keep the following in mind:


- **Administration**: Cephalexin can be given with or without food, but giving it with food may help prevent gastrointestinal side effects such as vomiting or diarrhea.

- **Duration of treatment**: Complete the full course of medication as prescribed by your veterinarian, even if your dog seems to be feeling better.

- **Side effects**: Common side effects include vomiting, diarrhea, and loss of appetite. If these symptoms persist, contact your veterinarian.

- **Allergies**: Inform your veterinarian if your dog has any known allergies to cephalosporins or other antibiotics.

- **Storage**: Store tablets and capsules at room temperature, and keep liquid forms in the refrigerator.




Cephalexin is a highly effective antibiotic for treating various infections in dogs. Always follow your veterinarian's instructions for dosage and administration. If you notice any concerning side effects or suspect an overdose, contact your veterinarian immediately. For further questions or concerns, consult your veterinarian or pharmacist.

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