The Amoxicillin Dosage Calculator for Dogs is a veterinary dosage tool developed to help pet owners and veterinary professionals determine the appropriate dose of amoxicillin for dogs. Amoxicillin is a widely used broad-spectrum antibiotic that is commonly prescribed for treating various bacterial infections in dogs, including skin infections, respiratory tract infections, gastrointestinal infections, and urinary tract infections.

Input Parameters

• Dog Weight (in kilograms): The dog’s current body weight is essential to calculating the correct dosage. (1 kg = 2.2 lbs)

Output

• Minimum Recommended Dose (mg): Based on 10 mg/kg twice daily.
• Maximum Recommended Dose (mg): Based on 20 mg/kg twice daily.

How to Use

1. Weigh your dog accurately in kilograms. If you only know the weight in pounds, divide by 2.2 to convert.
2. Enter the weight into the calculator.
3. The calculator will return a recommended dosage range (in milligrams) per administration, which is typically given every 12 hours.
4. Consult your veterinarian to determine the exact dosage within that range based on the condition being treated.

Calculation Method

The calculator uses the standard veterinary dosing guidelines for amoxicillin in dogs:

• 10–20 mg per kg of body weight, administered twice daily (q12h).

The total dosage per administration is calculated using the formula:

Dose (mg) = Weight (kg) × Dose Rate (mg/kg)

The calculator provides both the lower end (10 mg/kg) and upper end (20 mg/kg) of the recommended range.

Important Veterinary Notes

Amoxicillin is generally well-tolerated in dogs but should be used only under the guidance of a licensed veterinarian. Overdosing may cause gastrointestinal upset, including vomiting and diarrhea. In rare cases, allergic reactions such as rash, swelling, or breathing difficulties may occur. Always complete the full course of antibiotics even if symptoms improve early to prevent bacterial resistance.

This calculator is intended for informational and educational purposes only and does not substitute for professional veterinary consultation.