Cephalexin

Cephalexin is a widely used prescription antibiotic for dogs and cats. It belongs to the cephalosporin family and is effective against a variety of bacterial infections, particularly those involving the skin, bones, respiratory tract, and urinary system. It works by disrupting bacterial cell wall formation, helping the immune system clear the infection.

Benefits

• Effective against a broad range of bacteria
• Commonly used to treat skin infections, wounds, and abscesses
• Also useful for bone infections, respiratory infections, and urinary tract infections
• Available in tablets, capsules, and oral suspension for easy administration

Dosage

• Dogs: Typically 15 to 30 mg per kg every 8 to 12 hours
• Cats (off-label): Usually 10 to 20 mg per kg every 12 hours
• Treatment duration is usually 7 to 14 days but may vary based on the condition
• Always follow the veterinarian’s instructions
• Can be given with or without food

Warnings and Precautions

• Not for use in animals allergic to cephalosporins or penicillin
• Use cautiously in animals with kidney disease
• Not safe for use in rabbits, guinea pigs, or other small herbivores
• May interact with certain medications—inform your vet of all current treatments

How to Use

• Administer at the same times each day for best results
• Shake the suspension well before each use (if using liquid form)
• Complete the full course of treatment, even if symptoms improve
• If a dose is missed, give it as soon as possible unless close to the next dose

Storage

• Tablets and capsules: Store at room temperature, away from moisture
• Oral suspension: Refrigerate and use within 14 days of opening
• Keep out of reach of children and pets

Side Effects

• Common: Mild diarrhea, vomiting, decreased appetite
• Rare: Allergic reactions such as swelling, rash, or difficulty breathing
• Contact a veterinarian if any unusual or severe side effects occur