Metacam for Dogs and Cats: Complete Guide

Overview

Metacam (meloxicam) is a prescription non-steroidal anti-inflammatory drug (NSAID) specifically formulated for veterinary use in dogs and cats. This medication belongs to the oxicam class of NSAIDs and is widely prescribed by veterinarians for managing pain and inflammation associated with various musculoskeletal conditions.

The active ingredient, meloxicam, works by selectively inhibiting cyclooxygenase-2 (COX-2) enzymes while having minimal effect on COX-1 enzymes. This selective action helps reduce inflammation and pain while minimizing gastrointestinal side effects commonly associated with traditional NSAIDs.

Metacam is available in multiple formulations including oral suspension, chewable tablets, and injectable solutions, making it versatile for different treatment scenarios and patient preferences.

How It Works

Metacam functions by blocking the production of prostaglandins, which are chemical messengers responsible for inflammation, pain, and fever. Specifically, meloxicam inhibits the cyclooxygenase (COX) enzymes that convert arachidonic acid into prostaglandins.

The medication demonstrates preferential inhibition of COX-2 over COX-1 enzymes. COX-2 is primarily responsible for producing inflammatory prostaglandins at sites of tissue damage, while COX-1 produces prostaglandins that protect the gastrointestinal tract and support normal kidney function. This selectivity allows Metacam to provide anti-inflammatory and analgesic effects while reducing the risk of gastrointestinal ulceration.

Once administered, meloxicam is rapidly absorbed and reaches peak plasma concentrations within 1-2 hours in dogs and 1.5-3 hours in cats. The medication has a long half-life, allowing for once-daily dosing in most cases.

Uses & Indications

Metacam is prescribed for various conditions involving pain and inflammation:

Osteoarthritis: The most common indication, providing long-term management of joint pain and stiffness in aging pets.

Post-surgical pain: Used for managing pain following orthopedic, soft tissue, and dental procedures.

Acute musculoskeletal injuries: Treatment of sprains, strains, and other soft tissue injuries.

Chronic pain conditions: Management of ongoing pain from degenerative joint disease and other chronic inflammatory conditions.

Dental pain: Relief from pain associated with dental procedures or periodontal disease.

The medication is particularly effective for conditions where both pain relief and anti-inflammatory action are needed simultaneously.

Dosage Guidelines

Dogs

• Small dogs (under 25 lbs): 0.1 mg/kg (0.045 mg/lb) once daily
• Medium dogs (25-50 lbs): 0.1 mg/kg (0.045 mg/lb) once daily
• Large dogs (over 50 lbs): 0.1 mg/kg (0.045 mg/lb) once daily

Cats

• Standard dosage: 0.05 mg/kg (0.023 mg/lb) once daily for maximum 5 days

Initial doses may be higher for the first day of treatment, followed by maintenance dosing. The oral suspension allows for precise dosing based on body weight using the provided measuring syringe.

Dosage adjustments may be necessary for elderly animals or those with kidney or liver impairment. Treatment duration varies depending on the condition being treated, from short-term post-surgical use to long-term management of chronic conditions.

Administration

Metacam oral suspension should be administered directly into the mouth or mixed with food. The medication is palatable and most pets accept it readily. When giving with food, ensure the entire meal is consumed to guarantee full dose administration.

For injectable formulations, administration should only be performed by veterinary professionals. The injection is typically given subcutaneously or intravenously as directed by the veterinarian.

Chewable tablets should be given whole and not broken or crushed. These can be given with or without food, though giving with food may help reduce potential stomach upset.

Consistency in timing is important for maintaining steady blood levels of the medication. Administer at the same time each day when possible.

Side Effects

Common Side Effects

• Decreased appetite
• Vomiting
• Diarrhea
• Lethargy
• Changes in urination patterns

Rare Side Effects

• Stomach ulceration
• Kidney dysfunction
• Liver enzyme elevation
• Skin reactions

Severe Side Effects

• Gastrointestinal bleeding (black, tarry stools)
• Severe kidney impairment
• Liver toxicity (jaundice, severe lethargy)
• Allergic reactions (facial swelling, difficulty breathing)

Most side effects are mild and resolve with discontinuation of the medication. However, any concerning symptoms should prompt immediate veterinary consultation.

Precautions & Warnings

Metacam should not be used in animals with known hypersensitivity to meloxicam or other NSAIDs. Pre-existing kidney, liver, or heart disease requires careful consideration and monitoring.

Dehydrated animals should be rehydrated before starting treatment, as NSAIDs can further compromise kidney function in dehydrated patients. Regular monitoring of kidney and liver function is recommended for long-term use.

Use caution in elderly animals, as they may be more susceptible to side effects. Pregnant or nursing animals should not receive Metacam unless the benefits clearly outweigh the risks.

Drug Interactions

Metacam should not be used concurrently with other NSAIDs, including aspirin, as this increases the risk of gastrointestinal ulceration and kidney toxicity. Corticosteroids should also be avoided or used with extreme caution.

ACE inhibitors, diuretics, and certain antibiotics may interact with meloxicam, potentially affecting kidney function. Anticoagulant medications may have enhanced effects when used with Metacam.

Always inform the veterinarian of all medications and supplements the pet is receiving before starting Metacam therapy.

Storage

Store Metacam at room temperature between 68-77°F (20-25°C). Keep the oral suspension in its original container and protect from light. Do not freeze the liquid formulation.

Keep all medications out of reach of children and pets. Do not use past the expiration date, and properly dispose of unused medication according to local guidelines.

The oral suspension should be shaken well before each use to ensure proper mixing of the medication.

FAQ

Q: How long does it take for Metacam to work? A: Most pets show improvement within 24-48 hours of starting treatment. Full effects may take several days to develop, particularly for chronic conditions like arthritis.

Q: Can Metacam be given long-term? A: Yes, Metacam can be used for long-term management of chronic conditions under veterinary supervision. Regular monitoring of kidney and liver function is recommended for extended use.

Q: What should I do if I miss a dose? A: Give the missed dose as soon as you remember, unless it's close to the time for the next dose. Never give two doses at once. Resume the normal dosing schedule with the next dose.

Q: Can Metacam be used with other pain medications? A: Metacam should not be combined with other NSAIDs or corticosteroids. Other types of pain medications may be used concurrently under veterinary guidance.

Q: Is Metacam safe for cats? A: Metacam is approved for cats but requires careful dosing and monitoring. Cats are more sensitive to NSAIDs than dogs, so treatment duration is typically limited and requires close veterinary supervision.