Overview
Sulfadiazine-Trimethoprim is a combination antibiotic used in veterinary medicine to treat a variety of bacterial infections in pets. It combines two active ingredients to effectively inhibit bacterial growth.
How It Works
This medication works by combining sulfadiazine, a sulfonamide, with trimethoprim, a dihydrofolate reductase inhibitor. Together, they block bacterial synthesis of folic acid, essential for bacterial growth and replication.
Uses & Indications
Sulfadiazine-Trimethoprim is indicated for:
- Respiratory infections
- Urinary tract infections
- Skin infections
- Gastrointestinal infections
Dosage Guidelines
Dogs
- Small Dogs: 15 mg/lb (30 mg/kg) per day
- Medium Dogs: 12 mg/lb (25 mg/kg) per day
- Large Dogs: 10 mg/lb (20 mg/kg) per day
Cats
- Standard: 12 mg/lb (25 mg/kg) per day
Administration
This medication is administered orally and should be given with food to reduce gastrointestinal upset.
Side Effects
Common
- Loss of appetite
- Vomiting
Rare
- Anemia
Severe
- Allergic reactions (swelling, difficulty breathing)
Precautions & Warnings
- Not for use in animals with liver or kidney disease
- Avoid in animals with a known allergy to sulfonamides
Drug Interactions
- Methotrexate: May increase toxicity
- Warfarin: Enhanced anticoagulant effect
Storage
Store in a cool, dry place away from direct sunlight.
FAQ
- What should I do if a dose is missed?
Administer as soon as remembered unless close to the next dose.
- Can it be used in pregnant pets?
Use with caution and only under veterinary supervision.
- What if an overdose occurs?
Contact a veterinarian immediately.
- How long does it take to see improvement?
Improvement is typically seen within a few days.
- Is a prescription required?
Yes, a prescription is needed.
Drug Interactions
- Methotrexate: Increased toxicity risk
- Phenytoin: Increased serum levels
Storage
Store in a tightly sealed container at room temperature.
FAQs
1. Can this medication be given with food?
Yes, it is recommended to be given with food.
2. Are there any dietary restrictions?
No specific dietary restrictions unless directed by a veterinarian.
3. How should I store the medication?
Keep it in a cool, dry place, away from light.
4. What happens if my pet misses a dose?
Give the missed dose as soon as remembered unless it is close to the next dose.
5. Is it safe for long-term use?
Long-term use should be monitored by a veterinarian.