Finding The Right Veterinarian

Frequently Asked Questions About Ampicillin Trihydrate And Injectable Suspension

Veterinarians use ampicillin for a wide variety of conditions, including infections caused by bacteria or viruses. It is also used to treat certain types of pneumonia, eye infections, skin infections, and urinary tract infections.

What is ampicillin trihydrate?

Ampicillin trihydrate is a white crystalline powder that is highly soluble in water. The drug is effective against a wide range of bacterial infections including pneumonia, bronchitis, and urinary tract infections. It is a type of penicillin antibiotic that helps treat bacterial infections in dogs, cats, and other animals including cattle and sheep. It works by killing or stopping the growth of certain bacteria. 

It is important to note that this medication is only effective against bacterial infections and is not effective against viruses or other types of organisms. As with all antibiotics, it is important to administer ampicillin trihydrate to your pet exactly as prescribed by a veterinarian to ensure the best possible outcome and to avoid the development of antibiotic resistance.

How is this drug administered to pets?

Ampicillin is a penicillin antibiotic that's used to treat infections caused by bacteria. The medication is available in various forms, including capsules, tablets, and injections, and can be given intravenously (by IV) or by mouth. When you're pet is taking ampicillin, it's important to avoid other medications that can interact with the drug and cause side effects. These include:

  • Antacids
  • Aspirin and aspirin-containing products 
  • Calcium supplements

What are the advantages of ampicillin for injectable suspension?

One of the advantages of ampicillin for injectable suspension is that it is a broad-spectrum antibiotic, meaning that it is effective against a wide range of bacterial infections. This makes it a useful drug for cases where the vet is unsure of the specific type of bacteria causing an infection.

What are the side effects of this medication? 

Ampicillin for injectable suspension is generally well-tolerated by patients, but like all antibiotics, it can cause side effects. Common side effects include diarrhea, nausea, and vomiting. In rare cases, the drug can cause severe allergic reactions that require immediate medical attention.

It is important to note that ampicillin for injectable suspension should only be used for bacterial infections and not for viral infections such as the common cold or flu. Using antibiotics to treat viral infections can contribute to the development of antibiotic-resistant bacteria, which is a growing public health concern.


In conclusion, it is important for you to know that ampicillin trihydrate and injectable suspension is a prescription antibiotic used to treat bacterial infections in dogs and other animals. It should be given only by or under the direct supervision of a veterinarian. Because it can cause serious side effects if not administered properly, it's important that you follow your veterinarian's instructions carefully when giving this drug to your pet.