Marbofloxacin 50 mg Tablets for Cat
Marbofloxacin 50 mg Tablets for Cat are a broad-spectrum fluoroquinolone antibiotic used to treat serious bacterial infections in felines. It is commonly prescribed for skin infections, respiratory infections, urinary tract infections (UTIs), and wound infections. Marbofloxacin works by eliminating susceptible bacteria and preventing their replication, helping your cat recover quickly and effectively when used under veterinary supervision.
What is Marbofloxacin?
Marbofloxacin belongs to the fluoroquinolone class of antibiotics. It targets bacterial enzymes (DNA gyrase and topoisomerase IV) that are essential for bacterial DNA replication. By inhibiting these enzymes, it stops bacterial growth and leads to bacterial death.
It is effective against many common feline pathogens, including:
- Escherichia coli
- Pasteurella multocida
- Staphylococcus spp.
- Proteus spp.
- Klebsiella spp.
- Some strains of Pseudomonas
Indications in Cats
Veterinarians prescribe Marbofloxacin 50 mg Tablets for:
1. Skin & Soft Tissue Infections
- Abscesses
- Bite wounds
- Post-surgical infections
2. Respiratory Tract Infections
- Bronchitis
- Bacterial pneumonia
3. Urinary Tract Infections (UTIs)
- Cystitis
- Pyelonephritis
4. Gastrointestinal Bacterial Infections
- Secondary bacterial enteritis
Dosage Guidelines
Always follow your veterinarian’s prescription.
Standard Recommended Dose
2–5 mg/kg once daily (based on infection severity and veterinary judgment).
Approximate Dosing Table
| Cat Weight | Approximate Dose | Tablet Division (50 mg tablet) |
| 2–3 kg | 4–10 mg | Small fraction (as prescribed) |
| 4–5 kg | 8–15 mg | 1/6 – 1/4 tablet |
| 6–8 kg | 12–20 mg | 1/4 – 1/2 tablet |
| >8 kg | As directed | Vet-guided |
⚠50 mg tablets are often higher strength than needed for small cats — accurate division or alternative strengths may be required. Never guess tablet portions.
Duration of Treatment
- Skin infections: 5–10 days
- UTIs: 7–14 days
- Severe infections: As directed by veterinarian
Complete the full prescribed course even if symptoms improve early.
Administration Instructions
- Give orally once daily
- Can be given with or without food (with food if GI upset occurs)
- Ensure access to fresh water
- If a dose is missed, give as soon as remembered unless near next dose
Safety & Precautions
Marbofloxacin is generally well tolerated but requires veterinary supervision.
Do NOT Use In:
- Kittens under 8 weeks
- Cats with known fluoroquinolone allergy
- Cats with seizure disorders (use caution)
- Pregnant or nursing cats unless specifically prescribed
Possible Side Effects
Most side effects are mild and uncommon.
Mild Effects
- Vomiting
- Diarrhea
- Reduced appetite
Rare but Serious Effects
- Tremors
- Seizures
- Severe lethargy
- Allergic reaction (swelling, difficulty breathing)
Seek immediate veterinary care if severe symptoms appear.
Drug Interactions
Avoid combining with:
- Antacids or sucralfate (reduce absorption)
- Other fluoroquinolones
- Certain NSAIDs (may increase seizure risk)
Space dosing 2 hours apart from antacids or mineral supplements.
Special Considerations
Cats with kidney or liver disease may require:
- Dose adjustment
- Blood monitoring
- Alternative antibiotic selection
Regular follow-up is important for long-term treatment.
Why Veterinary Prescription is Essential
Improper antibiotic use can lead to:
- Antibiotic resistance
- Treatment failure
- Recurring infections
- Toxicity
A veterinarian may perform culture and sensitivity testing to confirm Marbofloxacin is the appropriate antibiotic.
Storage
- Store at room temperature
- Keep away from moisture and sunlight
- Keep out of reach of children and pets







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