T
The Daily Insight

How effective is CONVENIA

Author

Mia Morrison

Published Feb 12, 2026

Field efficacy studies in dogs & cats In field efficacy studies, a single CONVENIA injection was clinically equivalent in efficacy to a 14-day course of an oral cephalosporin in treating bacterial skin infections in dogs3 and cats.

What bacteria does CONVENIA treat in cats?

CONVENIA is indicated for the treatment of skin infections (wounds and abscesses) in cats caused by susceptible strains of Pasteurella multocida.

How long does it take Convenia to work in cats?

An injection of CONVENIA, delivered by your veterinarian, provides your pet with: Fast treatment: Reaches peak antibiotic blood levels within 6.2 hours and works around the clock for up to 14 days to eliminate common bacterial skin infections and their signs.

Is CONVENIA used for upper respiratory infections in cats?

She touches on the use of antibiotics and also reminds us that long-acting antibiotics (such as cefovecin sodium—Convenia®) are ineffective against Mycoplasma, a common agent in feline upper respiratory disease.

How long is Convenia effective for?

The antibacterial effects of Convenia last approximately one to two weeks. Many veterinarians use it when treating feline patients in particular, because cats can be difficult when it comes to administering antibiotics in liquid or pill forms.

Can Convenia cause seizures in cats?

Like all cephalosporin antibiotics, Convenia can cause vomiting, diarrhea, poor appetite, and sometimes even make at-risk pets more susceptible to seizures.

How long does an antibiotic injection take to work in cats?

If you have difficulty giving your pet the injection, contact your veterinary hospital. This medication will take effect quickly, in about 1 to 2 hours, but effects may not be visibly obvious for several days.

Do antibiotics make cats lethargic?

In many pets, antibiotics can cause lethargy, nausea and/or a loss of appetite, which may make your pet less interested in eating their food. But it is crucial that your pet continues to eat, because their body needs the energy to continue fighting infection and repairing damaged cells.

How long can a cat stay on antibiotics?

Although the optimal duration of therapy is unknown, the work group recommends continuing treatment for a minimum of seven days and for at least one week past clinical resolution or disease plateau.

Is there an antibiotic shot for cats UTI?

Cefovecin sodium [Convenia®; Pfizer Animal Health; USA] is a newly developed, semi-synthetic, extended-spectrum injectable third-generation cephalosporin administered at 8 mg/kg subcutaneously (SC) for the treatment of UTI and skin and soft tissue infections in dogs and cats and it has been approved for subcutaneous (

Article first time published on

How long does an upper respiratory infection last in cats?

If the infection is uncomplicated, it will typically last for 7-10 days, although signs may persist for up to 21 days in some cases. During this entire time, the cat may be infective to other cats. With FVR, all cats become chronic carriers, meaning that they will have the disease for life.

Is convenia a good antibiotic?

Effective choice, excellent value CONVENIA is the best choice for treating common bacterial skin infections in dogs and cats of all sizes.

How do I get rid of my cats upper respiratory infection?

  1. Give it a comfortable, private place to rest.
  2. Encourage it to eat. …
  3. Gently clean any discharge from its eyes and nose.
  4. If breathing is a problem, your vet may suggest putting your cat in a bathroom with a steamy shower running.

How can I prevent my cat from getting a UTI?

  1. Increase your cat’s water consumption. Make sure their water bowl is clean and filled with fresh water at all times. …
  2. Place litter boxes in quiet areas of the house where your cat feels comfortable.
  3. Keep litter boxes clean.

How do you give a Convenia injection?

CONVENIA should be administered as a single, one-time subcutaneous injection at a dose of 3.6 mg/lb (8 mg/kg) body weight. After an injection of CONVENIA, therapeutic concentrations are maintained for approximately 7 days for Pasteurella multocida infections.

How much convenia do cats need?

CONVENIA should be administered as a single, one-time subcutaneous injection at a dose of 3.6 mg/lb (8 mg/kg) body weight. After an injection of CONVENIA, therapeutic concentrations are maintained for approximately 7 days for Pasteurella multocida infections.

What does gabapentin do to a cat?

Gabapentin is an anticonvulsant and analgesic drug used by vets to treat chronic pain, seizures, and anxiety in cats. Mild sedation in cats is the main potential side effect of the drug. Your cat might also experience incoordination and diarrhea.

How long does convenia last after reconstitution?

This updated label extends the in-use shelf life of Convenia once the vial has been reconstituted from 28 days to 56 days. Since its introduction in 2008, veterinarians have trusted Convenia to deliver 100 percent compliance with a single injection.

Is convenia a third generation cephalosporin?

Convenia contains cefovecin sodium, a third generation cephalosporin, and is indicated for use in dogs and cats for the treatment of skin and soft tissue infections and for the treatment of urinary tract infections.

What happens if I give my cat too much antibiotics?

When antibiotics are ingested in toxic amounts, it can result in mild to severe signs ranging from gastrointestinal signs (e.g., drooling, vomiting, diarrhea, inappetance, discolored teeth), metabolic signs (e.g., skin lesions, liver failure, kidney failure, etc.) to central nervous system signs (e.g., tremors, …

How Long Can cats go without food?

How long can a cat go without eating? In any case—ill, picky, or feral—a cat that doesn’t eat might survive for as long as two weeks without food, but not without serious health consequences. A cat that goes about three days or more without eating will begin to utilize fat reserves for energy, just as a human will.

Can cats have yogurt?

Turns out, yogurt is also usually safe — and most likely healthy — for cats and dogs to eat, as long as it doesn’t contain sugar substitutes like xylitol. Fetch consulted veterinarian and pet health advocate Dr.

Does Orbax make cats sleepy?

Possible Side Effects: Continue to give the medication and talk to your veterinarian if your pet experiences loss of appetite, vomiting, diarrhea, dizziness, or drowsiness. Side effects other than those listed may occur. Talk to your veterinarian about any side effect that seems unusual or bothersome to your pet.

How long does it take for a cat UTI to go away with antibiotics?

Since it often takes 3 to 5 days to obtain final culture results, your veterinarian will likely start your cat on broad-spectrum antibiotics in the interim. The typical duration of antibiotic therapy is 7 to 14 days.

How long can a cat have a UTI?

The duration of this course can last anywhere from 1-2 weeks to as long as 3-6+ weeks, depending on the severity of the infection, the type of bacteria found on urine culture testing, and any chronic medical conditions or other risk factors your cat may have.

Can cats recover from respiratory infection?

With rest and good care, many cats will recover from mild URI in one or two weeks. Sometimes cats need additional help. If your cat has any of the following signs, contact your veterinarian. Not eating for more than 24 hours.

Will a cat's respiratory infection go away?

Most upper respiratory infections in cats will resolve themselves with a little extra TLC and time. However, more severe infections may require treatment, prescription pet medication or even hospitalization.

How long does a respiratory infection last?

Generally, a URI should last as long as 2 weeks. This does not mean that the symptoms worsen with time. Rather, it should take between 3-14 days for you to be free of the infection. If it is taking longer than that, perhaps it is time to talk to a doctor about your condition.