Carprofen Dosage Calculator for Dogs

Calculate precise daily Carprofen (Rimadyl) anti-inflammatory dosages and chewable tablet counts based on your dog's weight.

💊

Input Parameters

Enter weight and tablet strength.

Total Daily Carprofen Dose

75.0 mg / day
Once Daily Schedule: 1 Tablet (75mg)
Twice Daily Schedule: 1/2 Tablet every 12h
💡

Administer With Food

Give Carprofen with meals to minimize GI side effects. Discontinue immediately if black tarry stools or vomiting occurs.

Carprofen Weight-Based Dosing Chart

Dog Weight (lbs / kg) Total Daily Dose (mg) Best Tablet Combination Twice Daily Dose (every 12h)
12.5 lbs (5.7 kg) 25 mg / day One 25 mg tablet 12.5 mg (1/2 of 25mg tab)
25 lbs (11.3 kg) 50 mg / day Two 25 mg tablets 25 mg (One 25mg tab)
37.5 lbs (17.0 kg) 75 mg / day One 75 mg tablet 37.5 mg (1/2 of 75mg tab)
50 lbs (22.7 kg) 100 mg / day One 100 mg tablet 50 mg (1/2 of 100mg tab)
75 lbs (34.0 kg) 150 mg / day Two 75 mg tablets 75 mg (One 75mg tab)

Calculation Methodology & Biological Principles

📐

Veterinary Dosing Formula

Daily Dose (mg) = Body Weight (lbs) × 2.0 mg/lb Twice Daily Dose = Daily Dose / 2

Carprofen works by inhibiting cyclooxygenase (COX-2) enzymes, reducing inflammatory prostaglandin synthesis in canine cartilage and joints.

🩺

Veterinary Monitoring

Baseline serum chemistry and hepatic enzyme screening (ALT, ALKP) are required prior to long-term Carprofen administration in dogs.

Frequently Asked Questions

What is Carprofen (Rimadyl) used for in dogs? ▼

Carprofen is a non-steroidal anti-inflammatory drug (NSAID) prescribed by veterinarians to relieve pain and inflammation associated with canine osteoarthritis and post-operative orthopedic surgery.

What is the standard veterinary dosage of Carprofen? ▼

The recommended initial dosage is 2 mg per pound of body weight (4.4 mg/kg) administered once daily, or divided into 1 mg per pound (2.2 mg/kg) given twice daily.

Can Carprofen be given to cats? ▼

NO! Carprofen is NOT safe for cats. Feline liver enzymes cannot metabolize NSAIDs effectively, causing acute renal failure and stomach ulceration.

Related Calculators

View All Biology Tools →