DHPP Vaccine for Dogs

DHPP is the core combination vaccine every puppy needs, and you'll see it sold under several different names depending on your vet or the manufacturer: DAPP, DHLPP, Da2PP, the “5-in-1” or “6-in-1” shot, and brand names like Duramune, Vanguard, or Zoetis's Spectra 5, Spectra 9, and Spectra 10. Whatever it says on your dog's paperwork, it's protecting against the same core group of canine diseases. If you haven't worked out the exact dates for your own puppy yet, the puppy vaccine schedule calculator will map DHPP doses to your puppy's actual birth date.

This page is for general education only, based on published AAHA core vaccine guidelines, and isn't a substitute for personalized veterinary advice. Timing can vary by puppy, region, and vet protocol — always confirm your dog's exact schedule with your veterinarian.

What Does DHPP Protect Against?

DHPP covers four core canine diseases: Distemper, a severe viral illness that attacks the respiratory, GI, and nervous systems; canine Hepatitis (adenovirus-2); canine Parainfluenza, a contagious respiratory virus; and Parvovirus, a highly contagious and often fatal GI virus in unvaccinated puppies. All four are considered “core” vaccines by AAHA, meaning every dog should get them regardless of lifestyle.

What's the difference between DHPP, DAPP, and DHLPP?

They're almost always the same core vaccine sold under different names. The "H" and "A" both refer to the adenovirus-2 (hepatitis) component, so DHPP and DAPP are typically interchangeable. DHLPP is the same combination with an "L" added for leptospirosis, making it a 5-way rather than a 4-way shot. A specific brand name doesn't change what your dog is protected against — check the vaccine label or ask your vet which diseases are included.

What is a 5-in-1 or 6-in-1 puppy vaccine?

The number refers to how many diseases a single combination shot covers. A "5-in-1" is usually DHPP plus leptospirosis (the same as DHLPP), while "6-in-1" or "7-in-1" formulations add extra leptospirosis strains or coronavirus. Brand names like Duramune, Vanguard, and Zoetis's Spectra 5, Spectra 9, and Spectra 10 are manufacturer-specific versions of these combo vaccines — the number maps to how many disease agents that particular formulation covers.

Puppy DHPP Shot Schedule

The DHPP series starts while your puppy is still nursing and finishes around the 4-month mark, timed to work around the maternal antibodies every puppy is born with. Missing or delaying a dose in the series can leave a gap in protection right when it matters most, so vets are strict about the spacing between shots.

How many DHPP shots does a puppy need?

Puppies need a series of three DHPP doses, spaced about 3–4 weeks apart: the first at 6–8 weeks, a second at 10–12 weeks, and a third (final) dose at 14–16 weeks. A puppy isn't considered fully protected until after that last dose, which is why vets recommend limiting exposure to unvaccinated dogs and public areas until the series is complete.

DHPP Boosters for Adult Dogs

Once your dog has finished the puppy series and its 1-year booster, DHPP moves onto the same adult booster cadence covered on the annual dog injections page, alongside rabies and any other core boosters your dog is due for.

How often do dogs need a DHPP booster?

After finishing the puppy series, dogs get a booster at 12–16 months. From there, most vets follow AAHA guidance and re-vaccinate every 3 years for the core DHPP components, though some clinics use an annual booster instead depending on their protocol and your dog's risk factors. Ask your vet which interval they follow.

For the full puppy vaccine timeline beyond DHPP — including rabies, leptospirosis, and bordetella — see the puppy vaccine schedule calculator.