atopica logo

ATOPICA® (cyclosporine oral solution) USP MODIFIED

Comfortis logo

Comfortis® (spinosad)

EasySpot for Cats logo

EasySpot® (fipronil)

fel-o-guard logo


Fel-O-Vax logo


Interceptor® (milbemycin oxime)

itrafungol logo

Itrafungol™ (itraconazole oral solution)

Milbemite Logo

MilbeMite® OTIC Solution (milbemycin oxime)

Nocita® (bupivacaine liposome injectable suspension)

 4C 2016[1]

ONSIOR® Tablets for Cats (robenacoxib)

Onsior Injection Logo

ONSIOR® Injection (robenacoxib)

Rabvac logo


felovax ultra filled logo

ULTRA™ Fel-O-Vax®

Ultra hybrid logo

ULTRA™ Hybrid


Vetspon logo


Zobuxa logo

Zobuxa® (enrofloxacin)

felovax ultra filled logo
ULTRA™ Fel-O-Vax®

A More Comfortable Vaccine Experience

The ULTRA™ Fel-O-Vax line of vaccines lets you offer feline patients:

  • 50% less volume than standard vaccines
  • Effective disease protection with minimal injection volume
  • A vaccine designed for a more comfortable experience


  • Offers exclusive dual-strain feline calicivirus (FCV) and proven feline leukemia virus (FeLV) protection

    Modern FCV protection:
  • Unique, dual-strain FCV for the latest in broad protection—exclusive to Elanco in the U.S.

    Demonstrated FeLV protection:
  • 100% preventable fraction against persistent viremia in multiple studies2-5
  • 92% in the most recent USDA approval study6
  • Aluminum-free

ULTRA Fel-O-Vax 2pg Detailer table

ULTRA Fel-O-Vax is manufactured with PureFil™ Technology

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At Elanco, our commitment to ongoing improvement and innovation has but one focus: to help you deliver the best medicine to your patients. The advanced way we’re delivering on that commitment is through PureFil Technology.

  • A single-mindedness to pursue vaccine excellence
  • Investment in new purification and filtration processes, infrastructure upgrades and workflow processes
  • An unwavering belief that new levels of quality can always be found
  • The first to deliver a 0.5 mL feline vaccine line to the marketplace, thanks to PureFil Technology

* Best medicine is a veterinarian’s desire to provide effective and safe medical interventions that maximize the pet’s quality of life.


  1. Scherk MA, Ford RB, Gaskell RM, et al; American Association of Feline Practitioners (AAFP) Feline Vaccination Advisory Panel. 2013 AAFP Feline Vaccination Advisory Panel Report. J Feline Med Surg. 2013;15(1):785–808.
  2. Torres AN, O’Halloran KP, Larson LJ, et al. 2010. Feline leukemia virus immunity induced by whole inactivated virus vaccination. Vet Immunol Immunopathol. 134:122-131.
  3. Sebring RL, et al. 1991. Feline leukemia virus vaccine development. JAVMA. 199(10):1413-1419.
  4. Hoover EA, et al. 1996. Efficacy of an Inactivated Feline Leukemia Virus Vaccine. AIDS Research and Human Retroviruses. 12(5):379-383.
  5. Legendre AM, et al. 1991. Comparison of the efficacy of three commercial feline leukemia virus vaccines in a natural exposure challenge. JAVMA. 199(10):1456-62.
  6. Elanco Animal Health. Data on File.

Fel-O-Vax and ULTRA are trademarks of Elanco or its affiliates.