Metacam, generically known as meloxicam, is a non-steroidal anti-inflammatory drug (NSAID) widely used in veterinary medicine, particularly for horses. It is specifically formulated as a 15 mg/ml oral suspension, making it easy to administer and effective for managing pain and inflammation associated with various conditions in equines.

Indications

Metacam is primarily indicated for the alleviation of pain and inflammation due to:

• Osteoarthritis: Common in older horses, osteoarthritis causes joint discomfort and mobility issues, leading to decreased quality of life. Metacam helps to relieve these symptoms, promoting better mobility.
• Post-surgical pain: Horses undergoing surgery experience significant pain. Metacam is used pre- and post-operatively to manage this pain effectively.
• Soft tissue injuries: Conditions such as tendonitis or strains can significantly impact a horse’s performance. Metacam aids in combating inflammation and pain associated with these injuries.
• Fever reduction: In some cases, horses may develop a fever due to infection or other health issues. Metacam can assist in reducing fever, providing relief.

Mechanism of Action

Metacam works by inhibiting the cyclooxygenase (COX) enzymes involved in the inflammatory process. By blocking the production of prostaglandins, which are compounds that mediate inflammation and pain, Metacam effectively reduces swelling, stiffness, and discomfort in horses.

Dosing and Administration

Metacam 15 mg/ml oral suspension is conveniently administered orally, allowing for easy dosing during routine treatment. The typical dosing regimen is as follows:

1. Loading Dose: It’s common to begin with a loading dose to quickly achieve therapeutic levels in the horse’s system. This may typically be around 0.6 mg/kg body weight on the first day.
2. Maintenance Dose: Following the loading dose, a maintenance dose often ranges from 0.3 to 0.6 mg/kg body weight once daily.

Safety and Side Effects

• Gastrointestinal issues: These can manifest as diarrhea, colic, or ulcers, especially with prolonged use or high doses.
• Kidney issues: NSAIDs can affect kidney function, particularly in dehydrated horses, so it’s essential to ensure proper hydration.
• Allergic reactions: Some horses may exhibit sensitivity to meloxicam, displaying symptoms such as swelling, hives, or difficulty breathing.

Contraindications

Metacam should not be used in horses that:

• Are pregnant or nursing.
• Have a known allergy to meloxicam or any other NSAIDs.
• Have existing gastrointestinal, hepatic, or renal diseases.
• Are dehydrated or in shock, as the risk of adverse effects increases.

Important Considerations

• Monitoring: Regular veterinary check-ups are advisable while your horse is on Metacam. This allows for monitoring of liver and kidney function and ensures the absence of side effects.
• Drug interactions: Be cautious of using other NSAIDs simultaneously, as this can increase the risk of toxicity. Always inform your veterinarian about any other medications your horse is receiving.
• Long-Term Use: If Metacam is required for chronic pain management, periodic assessments are vital to ensure the safe and effective long-term use of the medication.