Amoxicillin for Dogs and Cats


Penicillin was the first antibiotic provided to humans during World War II. It was extremely efficient against gram-positive bacteria, but didn’t last long and was vulnerable to stomach acid so was lost inside the body.

Amoxicillin is the brand-new and enhanced variation of penicillin that is able to last longer, resist stomach acid, and kill both gram-positive and gram-negative bacteria. It is typically used to prevent and treat infections discovered in cuts and injuries, the mouth, the upper respiratory system, and the bladder. Amoxicillin likewise has better absorption than another predecessor, Ampicillin.

It is possible for bacteria to construct resistance to this drug, as the Staphylococci group of bacteria currently has. Amoxicillin might be used in conjunction with clavulanic acid (as in Clavamox) to be efficient versus Staphylococci along with other bacteria.

This drug needs to be given for a minimum of 7-10 days to be effective.

How It Works

Amoxicillin kills bacteria by preventing them from developing an appropriate cell wall while they grow. It achieves this by hindering the linking of peptidoglycan chains that are a major part in both gram-positive and gram-negative bacteria’s cell walls.

Storage Information

Store tablets in a firmly sealed container at room temperature.

Keep oral liquid refrigerated- effective 14 days after blended.

Injection is effective 3 months after reconstitution at room temperature and 1 year after reconstitution if cooled.

Missed Dose?

Offer the dose as soon as possible. If it is practically time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give your family pet two dosages simultaneously.

Amoxicillin Side Effects in Pets

Amoxicillin may result in these side effects:

Amoxicillin may react with these drugs:

  • Neomycin sulfate.
  • Antacids.
  • Aminoglycosides.
  • Bacteriostatics (Drugs that inhibit bacterial development).

Do not use amoxicillin in rabbits, guinea pigs, or rodents.


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