Cephalexin For Dogs How It Works?

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Dogs are naughty and active creatures. They are always playing and running around. They often play in swimming pools, in mud and dirty water. They also like to dig soil and hide in the soil dug.

Sometimes, dogs get dirty. Even if you wash them they can get some bacteria on them or they can swallow them. Bacteria enter their body and cause many problems resulting in the form of infections. These infections can cause your dog to become weak and lethargic.

You should take them to a vet doctor for treatment.

The doctors often prescribe Cephalexin.

In this article, we will discuss that

Cephalexin for Dogs

And is it good for them and how it works?


Cephalexin is an antibiotic drug which belongs to the first generation in cephalosporin family. It is an artificial or semi synthetic cephalosporin antibiotic.

It is 7-(D-a-Amino-a-phenylacetamido)-3-methyl-3-cephem-4-carboxylic acid monohydrate.

 It is (7R)-3-Methyl-7-(a-D-phenyl glycyl amino)-3-cephem-4-carboxylic acid, monohydrate.

It has chemical formula C16H17N3O4S.

It is used to cure many bacterial infections.

  • It is a broad spectrum drug.
  • It treats the following bacterial infections
  • Urinary area infections
  • Skin infections
  • Soft tissues and bone infections
  • Respiratory pathway infection
  • Ear Otitis
  • It also prevents heart valve infections.
  • Eye and nose infections
But it is not recommended for sinus infection

It is an effective drug.


Cephalexin For Dogs

Cephalexin is an efficient medicine. It kills bacteria and diminishes bacterial infections. But pet owners are confused whether to give their dogs this drug or not. So,

Can Dogs Consume Cephalexin?

Yes, they can consume Cephalexin. It is not approved by FDA for dogs. But it is given to dogs for treating bacterial infections. It does not cause any problem until your dog is allergic to it or takes the overdose of the drug.

Cephalexin is a wonderful medicine and can give your pet dog relief from many problems.

Cephalexin For Dogs 

How Much Cephalexin Should Dog Take?

Cephalexin dosage for dogs should be checked carefully. Before giving your pet dog Cephalexin consult a vet doctor if he recommends it for your dog then you can give it to your pooch.

A typical dose is 12.5 mg per pound weight of your dog every 8 hours.

Dog’s dosage also depends on the condition of dog and magnitude of infection.

In most bacterial infections its dosage is,

  • 6 mg per lb of dog weight twice a day
  • A 50-pound dog with Otitis (gram positive bacterial infection) can consume 500 mg of Cephalexin after every 12 hours.

In some liquid suspensions, the formulation of content is different.

  • In some, the active agent is 125 mg/5 ml
  • Others may have active agent 127 mg/5ml
  • If the liquid formulation is of 125 /5 then give your dog
  • 54ml per lb weight of dog
  • And if it contains formulation of 127 /5 then give it
  • 27ml per lb weight
  • Every 8 hours

You should discuss the dosage of medicine with a drug before giving it to your dog.

Give your dog small meal before giving it the medicine. As it is better for it and reduces the risks of abdominal pain.

It should be given in capsules as they have to swallow it. It has the bitter taste which is not liked by all.

If you have a large dog then you can give it medicine by mixing or hiding it in its treat.

How Much Cephalexin Should Dog Take

Working of Cephalexin

  • Cephalexin works by rupturing the growth of bacterial cell wall. It hinders bacterial cell wall growth. It deteriorates the cell wall. And it splits up resulting in the death of bacteria.
  • Cephalexin should be taken 3 days as to ensure that the bacterial infection is completely ended.
  • If not completed the course of Cephalexin, the bacteria might grow again and cause the infection.

Side Effects of Cephalexin

Cephalexin is a wide spectrum antibiotic but it also has some side effects. If these side effects appear to stop giving your dog Cephalexin or consult the vet doctor.

Some of its common side effects are,

  • Nausea
  • Diarrhea
  • Vomiting
  • High breathing rate
  • Increased saliva excretion
  • Skin inflammation
  • Fatigue
  • High irritability
If these signs appear then only a vet doctor can give you a good advice.   

Side Effects of Cephalexin

Overdose of Cephalexin

Cephalexin is a good antibiotic and can be given to dogs but its high consumption can also cause problems to your pet dog.

So, be careful of the dosage you are giving your pet.

If he accidentally consumes overdose then the following issues can come into existence,

  • Gastrointestinal problems like
  • Abdominal pain
  • Diarrhea
  • Vomiting

If this happens to consult a vet doctor as it is the effective way of giving your dog relief from all above problems.

Overdose can also cause drug resistance then it will no more effective for bacterial infections.

Overdose Of Cephalexin

Signs of Allergy to Cephalexin

Some dogs are also allergic to Cephalexin. If your pooch is allergic to penicillin then there is a 10 % risk that it may be allergic to Cephalexin.

If your dog is allergic to Cephalexin then it will show the following symptoms after its consumption,

  • Skin itchiness and rashes
  • Swelling of gullet
  • Hyperventilation
If these thing starts to happen to your pet dog then you should not give it Cephalexin and ask the veterinary doctor for advice.

Allergy to this drug in dogs can also cause a serious condition known as anaphylaxis.

Signs Of Allergy To Cephalexin

Safety Measures

Cephalexin is a good and effective drug, but it is a drug so you should be careful and cautious about some points.

Don’t give Cephalexin to pet dogs having diabetes mellitus type 2 also known as NIDDM non-insulin dependent diabetes mellitus. It increases their blood level causing problems.

Don’t use it if you are already using some other medications as it interferes with them and causes more health problems.

Dogs having the history of seizures and having health problems related to liver, kidney and colon should not be given Cephalexin as it increases the danger of side effects caused by this drug.

Long term use can also become a source of overgrowth of Clostridium docile in the colon. It releases toxic substances that are responsible for diarrhea and a condition known as pseudomembranous colitis or colitis.

Long-term use can also cause neutropenia, granulopenia, reduced number of platelets, hepatitis and kidney disorder.

Don’t give this medicine to pregnant dogs.

Safety Measures


Cephalexin for Dogs? Can Dogs Consume Cephalexin?

Yes, they can; Cephalexin can be given to dogs for curing bacterial infections. But always be careful about the amount of drug you are giving your pooch. It is very effective for treating bacterial infections but does not cure viral infections. It is also unsuccessful in curing the infection caused by Enterobacter.