Quick Answer

Administer Neopar Canine Parvovirus Vaccine to healthy puppies starting at 6 weeks of age, with boosters every 2–4 weeks until 16 weeks old. For adult dogs, give a single dose followed by a booster in 2–4 weeks. Each vial contains 10 doses and must be stored cold until use.

Why Timing Matters for Parvo Protection

Puppies receive maternal antibodies through colostrum, which can interfere with vaccine response. This is why a single dose is rarely enough. The Neopar vaccine is designed for active immunization against canine parvovirus, and following the correct schedule ensures the puppy's immune system builds its own protection after maternal antibodies wanes.

Adult dogs with unknown vaccination history may also need a primary series of two doses given 2–4 weeks apart. The key is that the vaccine only works when the dog is healthy and not already incubating the virus.

Handling and Storage Before Use

Neopar is a perishable biologic that must stay cold. Backyard Pet Supplies ships each vial in a special box with an ice pack to maintain cold chain integrity. Upon arrival, immediately refrigerate the vial. Do not freeze. A handling and packaging fee of $15 is added at checkout to cover these cold-chain materials.

Step-by-Step Administration Guide

  1. Step 1: Prepare the Vaccine: Remove the vial from refrigeration just before use. Reconstitute the lyophilized (freeze-dried) vaccine with the sterile diluent provided. Gently swirl until fully dissolved. Do not shake vigorously. Checkpoint: Use the entire vial within one hour of reconstitution. Discard any unused portion.
  2. Step 2: Draw the Dose: Using a sterile needle and syringe, draw 1 mL of the reconstituted vaccine. Each 1 mL dose is one immunizing dose. Use a new needle for each dog to prevent cross-contamination. Common mistake: Reusing a needle between dogs can spread diseases. Always use a fresh, sterile needle per injection.
  3. Step 3: Administer Subcutaneously: Inject the dose subcutaneously (under the loose skin) over the shoulder area. Pinch a fold of skin, insert the needle at a 45-degree angle, aspirate to confirm no blood return, then depress the plunger. Checkpoint: If blood appears in the syringe, remove the needle and try a slightly different site. Never inject into a blood vessel.
  4. Step 4: Schedule the Booster: Record the date and dog's ID. For puppies, give boosters every 2–4 weeks until 16 weeks of age. For adults, give a second dose 2–4 weeks after the first. Mark your calendar. Common mistake: Stopping boosters early. Maternal antibodies can block the first dose, so the full series is essential for protection.

Product Details at a Glance

  • Neopar Canine Parvovirus Vaccine: Each vial of NEOPAR Canine Parvovirus Vaccine contains 10 doses. Expires September 12, 2028. Shipped cold with ice pack. One vial covers multiple dogs or a full booster series. The cold shipping ensures the vaccine remains effective upon arrival.