What It Is:
Convenia is the brand name for cefovecin sodium, a long acting injectable antibiotic used to treat bacterial skin and soft tissue infections in cats and dogs. It belongs to the cephalosporin class of antibiotics, which are similar to penicillins.
What makes Convenia unique is that one injection provides up to 14 days of antibiotic coverage, which is especially useful for cats that are difficult to medicate at home.
🐾 What It Treats
Convenia is commonly used to treat:
- Skin infections such as abscesses and wounds
- Pyoderma (bacterial skin inflammation)
- Soft tissue infections
- Post surgical infections
- Urinary tract infections (off label)
- Respiratory infections (off label)
- Gum and dental infections (off label)
Your vet may prescribe it off label for conditions other than those specifically approved by the FDA.
🧪 How It Works
Convenia works by inhibiting bacterial cell wall synthesis, which leads to the death of susceptible bacteria. It is effective against many gram positive and gram negative bacteria, including Staphylococcus, Pasteurella, and Streptococcus species.
After injection, it stays active in the body for up to 14 days, maintaining therapeutic levels without requiring daily dosing.
🐾 Dosage and Administration
Convenia is administered by a veterinarian as a single injection under the skin.
Key points:
- No daily pills or liquids are required
- The effects last for up to 14 days
- Repeat injections may be necessary for chronic or deep infections
- Not intended for frequent or routine use without clear medical need
Your vet may recommend follow up visits to monitor your cat’s response to treatment.
🔍 Side Effects and Precautions
Most cats tolerate Convenia well, but possible side effects include:
- Lethargy or decreased appetite
- Vomiting or diarrhea
- Pain or swelling at the injection site
- Allergic reactions (rare), including facial swelling or difficulty breathing
- Neurological signs (very rare)
- Potential kidney or liver concerns in cats with existing disease
Use with caution in cats with:
- Kidney or liver disease
- Known allergies to cephalosporins or penicillins
- History of antibiotic sensitivity
Because the drug stays in the body for two weeks, side effects cannot be reversed quickly once it is given.
🩺 Prognosis
Convenia is highly effective for appropriate infections:
- Most cats show improvement within one to three days
- Full recovery depends on the severity of the infection and the cat’s overall health
- If side effects occur, contact your vet promptly, as the medication cannot be removed once injected
For many cat owners, especially those with cats that hate oral meds, Convenia can be a stress free solution.
💡 Cat Owner Note
Giving pills to cats can feel like a wrestling match. That’s why many vets love Convenia — one shot, two weeks of coverage, and no daily drama. Just keep in mind that once it’s in, it’s in. Make sure your vet has your cat’s full health history before going ahead with it.
❓ Frequently Asked Questions About Convenia for Cats
How long does Convenia last in cats?
One injection provides up to 14 days of antibiotic activity.
What infections does it treat?
It is approved for skin and soft tissue infections, but may be used off label for UTIs, dental issues, or respiratory infections.
Are there any serious side effects?
Most cats tolerate it well, but allergic reactions and rare complications can occur. Notify your vet of any unusual symptoms.
Can I use it instead of oral antibiotics?
Yes, in many cases. It is especially helpful for cats that refuse pills or are hard to medicate.
Is it safe for older cats?
Often yes, but caution is advised in cats with kidney or liver issues. Your vet may recommend bloodwork first.
Can I give my cat another dose at home?
No. Convenia must be administered by a veterinarian.