Neopar vaccine for dogs

Neopar vaccine for dogs

Neopar vaccine for dogs (2,3,4,6)

Neopar vaccine for dogs was developed by Dr. M. Bode in the early 1980s and is still produced under license in Brazil. The vaccine protects agnst leptospirosis. It contns a cell-free extract derived from Leptospira borgpetersenii serogroup Icterohaemorrhagiae, and was produced using a novel process for the fermentation of bacteria. This process is patented. The vaccine is a sterile solution contning no live organisms. The vaccine can be produced within a week after receiving vaccine seed culture from the Leptospira Reference Laboratory.

Benefits of Neopar vaccine for dogs include the following:

Eliminates the need for a whole organism killed vaccine

Neopar is a lyophilized vaccine that can be shipped anywhere in the world

The vaccine is well tolerated by the dogs

This vaccine is approved for use in dogs at any age and at any weight

Does not produce high fever or other clinical signs

Protects agnst all serovars of L. borgpetersenii serogroup Icterohaemorrhagiae

Neopar can be administered at any time before exposure, but is best given 6 weeks before exposure. For best results, it is recommended that the vaccine be given about 1 week before contact with contaminated water or soil.

Neopar can be given to puppies as young as 4 weeks and as old as 16 weeks. This vaccine is most effective when administered between 6 and 16 weeks of age. Because of the importance of preventing leptospirosis when the puppy first goes into the new environment, it is recommended that vaccination be given early and as often as possible.

Contrary to the previous vaccine, Neopar cannot be administered in doses over 1 mL. The recommended dose is 1 mL for puppies 3 weeks to 6 months of age. The recommended dose is 1.5 mL for puppies 7 to 16 weeks of age. Doses for puppies over 16 weeks of age should be based on body weight.

Neopar should not be given with any other vaccines.

How is Neopar given?

The vaccine should be mixed thoroughly and given by intramuscular injection in the area of the neck.

Can Neopar be given by other routes?

It can be given by subcutaneous or intranasal administration in puppies. The route of administration should be based on the vaccine guidelines for other live vaccines, such as parvovirus or distemper.

Who should not be vaccinated with Neopar?

Do not vaccinate agnst any disease if any signs of the disease have been observed in the dog. If the dog is not sure to have leptospirosis, test it before vaccinating. In some dogs, vaccination may increase the chance of developing autoimmune disorders. Vaccinating pregnant dogs agnst leptospirosis may cause premature births and can be harmful to the puppies.

If this drug and vaccine is being administered to both puppies and adult dogs, the dose for puppies should be 1.5 mL for puppies under 6 months old and 2 mL for puppies over 6 months old.


Before vaccinating a puppy, consult the vaccination guidelines for your region.

Vaccinate once a year, as with other vaccines.

The vaccine can be stored at room temperature, provided it does not freeze.

This vaccine should be kept out of the reach of small children.

In case of accidental contact with the eye or a mucous membrane, immediately flush the eyes with plenty of fresh water for at least 15 minutes.

For the safety of the patient, consult your veterinarian before administering Neopar.

How long does Neopar last?

The vaccine is effective for a month.

When is Neopar indicated?

Neopar is indicated to protect agnst disease and reduce the severity of a case in people who are occupationally exposed to serovars of Leptospira for two weeks or more. The vaccine is also indicated to protect agnst a canine leptospirosis outbreak in dogs.

Side effects and safety

The following adverse reactions may be reported after administration of Neopar.


Increased sensitivity to light.


Redness, swelling and redness of the eyes.





Soreness at the injection site.

Flu-like symptoms including lethargy.

Possible allergic reactions including itchy skin and respiratory symptoms.

What does Neopar contn?

Neopar contns 1 dose each of two leptospira organisms.

The first organism is a serogroup: Icterohaemorrhagiae.

The second organism is a serovar: Canicola.

How does the administration of Neopar work?

The vaccine is administered subcutaneously (under the skin) at three sites on the patient’s back.

What happens after Neopar administration?

After administration of Neopar the vaccine is effective for one month.

What is the duration of protection after the Neopar is administered?

The vaccine is protective for four months.

Does the use of antibiotics prevent the development of the vaccine adverse effects?

Yes. The use of an antibiotic can reduce the likelihood of developing vaccine side effects.

How long is the duration of vaccination with the vaccination program?

The duration of vaccination is based on the recommended age and vaccine strn.

What is the recommended age for Neopar?

The vaccination program is recommended for all individuals, including children younger than 18 years, who live in areas where Leptospira organisms are present.

What is the Leptospira organisms for Neopar?

Neopar is administered by injection. The vaccine contns two organisms of the serogroup Icterohaemorrhagiae and the serovar Canicola.

How do I get vaccinated with Neopar?

Neopar is avlable at your local pharmacy.

Where can I get Neopar in Canada?

Neopar is avlable at your local pharmacy.

The information contned in this article is intended to provide basic guidance and may not be current or applicable to your circumstances. The information and materials in this publication, including drug interactions, dosage, indications, contrndications, side effects, warning, precautions and others, are provided to inform the reader about possible