Critical Care®

Critical Care® is a premium recovery food which can be given to herbivores that are unwilling to eat their normal diet due to illness, surgery or poor nutritional status. This specially formulated product contains all the essential nutrients of a complete diet as well as high-fiber timothy hay to ensure proper gut physiology and digestion. Available in Anise and Apple-Banana Flavors. Sizes: 36g, 141g, 454g (anise), 141g, 454g (apple-banana).

Critical Care® should only be purchased from licensed veterinarians.
  • Nutrition
  • Feeding
  • Details
  • Testimonials


Timothy Grass Meal, Soybean Hulls, Soybean Meal, Wheat Germ, Xanthan Gum, Calcium Chloride, Cane Molasses, Salt, Potassium Chloride, L-Ascorbyl-2-Monophosphate (Vitamin C), Soybean Oil, Magnesium Sulfate, Papaya, Pineapple, Limestone, Natural Flavor, Oat Groats, Wheat Middlings, Yeast Culture (dehydrated), Vitamin E Supplement, Choline Chloride, Zinc Proteinate, Zinc Sulfate,Ferrous Sulfate, Niacin, Copper Sulfate, Selenium Yeast, Vitamin A Supplement, Folic Acid, d-Calcium Pantothenate, Copper Proteinate, Riboflavin Supplement, Manganese Proteinate, Biotin, Manganous Oxide, Thiamin Mononitrate, Vitamin B12 Supplement, Sodium Selenite, Pyridoxine Hydrochloride, Cobalt Carbonate, Vitamin D3 Supplement, Calcium Iodate.

Guaranteed Analysis

  • Crude Protein (min) 16.00%
  • Crude Fat (min) 3.00%
  • Crude Fiber (min) 21.00%
  • Crude Fiber (max) 26.00%
  • Moisture (max) 10.00%
  • Ash (max) 10.00%
  • Calcium (min) 0.40%
  • Calcium (max) 0.60%
  • Phosphorus (min) 0.20%
  • Metabolized Energy 24 kcal/tbsp


  • Vitamin A (min) 19,000 IU/kg
  • Vitamin D3 (min) 900 IU/kg
  • Vitamin E 190 (min) IU/kg
  • Vitamin B12 (min) 13 mcg/kg
  • Ascorbic Acid (Vit. C) (min) 10,000 mg/kg
  • Niacin (min) 60 mg/kg
  • Iron (min) 300 mg/kg
  • Zinc (min) 100 mg/kg
  • Copper (min) 18 mg/kg

Feeding Directions

Shake well before using.  Mix 1 part Critical Care® with 2 parts warm water to the desired consistency. The volume of water may be adjusted depending on feeding method.  Herbivorous mammals: Mix 3 Tbsp per kg of body weight daily.  (1 Tbsp is equal to approximately 9 grams.)  Herbivorous reptiles: Mix 1 Tbsp per kg of body weight daily.  Amounts are general guidelines.  Divide into 4 to 6 feedings unless specified by your veterinarian. Water should be available to the animal at all times. Prepare fresh at each feeding; discard after 24 hours. Store in a cool, dry place.

Critical Care Dosage Download Dosage Card

Critical Care® was developed and is recommended because we understand your need for an effective, versatile choice that you can trust for the treatment of your pet. Critical Care is a premium recovery food which can be given to herbivores that are unwilling to eat their normal diet due to illness or surgery. This specially-formulated product contains all the essential nutrients of a complete diet as well as high-fiber timothy hay to ensure proper gut physiology and digestion.

“Oxbow Critical Care has helped an incredible number of rabbits and guinea pigs that otherwise might not have survived without it. Thank God you created it!”
Dr. Sue Horton
Chicago Exotics Animal Hospital - Skokie, IL

“(Critical Care) smells so good I want to eat it. We mix it with a little water and apple juice and some anorectic pets eat it out of a bowl.”
Sharon Hollars, DVM
Summertree Animal & Bird Clinic – Dallas, TX

“The use of Critical Care has reduced the mortality rate among critically ill rabbit and guinea pig patients by at least 40%. I would not practice rabbit or guinea pig medicine without this product on my shelf.”
Dr. Gregory Rich
West Esplanade Animal Hospital - New Orleans, LA

“These products have been a Godsend for exotic medicine. I could not contemplate doing veterinary medicine without it.”
Dr. Richard Weger
Calgary North Veterinary Hospital – Calgary, Canada

“I have seen several rabbits with gastric stasis. Until I found Critical Care I always had problems with response to treatment. Now that I have Critical Care it is my first and often only treatment needed.”
Lois Davis, DVM
James River Animal Hospital – Nixa, MO

“I believe you have quality hay, pellets and Critical Care products which have saved many a rabbit and guinea pig. Prevention and or early use of your products provide small mammals a healthy life.”
Dr. David Kersting
Bird Medicine & Surgery – Chesterfield, MO

“My patients recover so much more quickly when I incorporate Critical Care into their treatment. The small herbivores I see thrive on the Oxbow feeding products.”
Dr. Vanessa Rolfe

“Failure to thrive uromastix neonates tube fed with finely ground Critical Care through a 20 ga ball-ended feeding needle. Before treatment (sid feeding) 80% death rate over 6-10 days. After support instituted >90% survival with tube feeding discontinued in 1 to 2 weeks. Survivors continued longer than 6 months.”
Mark Setser DVM, MS
All Creature Veterinary Hospital – Tulsa, OK

“I love all the products, especially the Critical Care diet for hospitalized bunnies and my rats love the Regal Rat.”
Loretta Pantenburg, DVM
Summertree Animal Clinic – Dallas, TX

5.00 out of 5.0 based on 9 reviews
  1. Sugarhill HollandsAugust 9, 2013
    Rabbits Love It!
    Rating 5 out of 5
    We raise Holland Lop and American Fuzzy Lop rabbits under the American Rabbit Breeders Association for show quality and pet quality rabbits. Whenever I have rabbits go off feed I immediately mix this up and just place it in their dish and they devour it with no problems! It's safe to use on rabbits of all ages and under all different kinds of restraints. I highly approve of this product, the quality is phenomenal.
    4 out of 6 people found this helpful.
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  2. vickiJanuary 7, 2014
    Rating 5 out of 5
    Oxbow Critical Care is the best. There is nothing else like it and nothing my bunnies like better when they are sick or under the weather. It is a life saver! Thank you Oxbow!
    1 out of 1 people found this helpful.
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  3. MarjorieJanuary 6, 2015
    The Medical Reasons All Responsible Guinea Pig Owners Must Have Critical Care On Hand...
    Rating 5 out of 5
    This product is a MUST HAVE in every home where a guinea pig is loved and truly cared for. Having a bag of critical on hand ready to go along with 1cc syringes is key in preventing a deadly spiral of illness in guinea pigs. (To make the perfect guinea pig feeding tool, just cut the very end off of the 1 cc syringes with a box cutter on a cutting board, leaving a tube-like syringe with wide opening to suck up the critical care mush. Syringes can be purchased online or requested at any vet's office or compounding pharmacy).

    Whenever I notice decreased oral intake (of pellets, vegetables, hay, water) and/or decreased droppings I begin critical care syringe feeding- at least 15ml every 4 to 6 hours for an adult pig; yes it means waking up in the middle of the night. I cannot tell you how many times this has saved a guinea pig's life in my home.

    Guinea pigs are designed to eat almost constantly. As soon as they stop eating for several hours, their liver begins to undergo metabolic changes which makes them even sicker, adding onto whatever problem that made them stop eating in the first place. The result is that within 24 hours of stopping eating, a guinea pig can be at death's door with dehydration, constipation, bloating and toxic systemic metabolic changes. This deadly cycle can be interrupted and prevented by syringe feeds with critical care. Sometimes the guinea pig will cooperatively suck it up as you feed it. Sometimes you must use more aggressive skilled technique of putting it half way back in their mouth and holding their head up a bit as you wait for them to swallow. There are online videos that teach good technique to syringe feed a guinea pig. If your guinea pig is hospitalized at the vet, don't trust the vet techs to feed him, go yourself. Too many times I have seen them put a little dish of oxbow critical care in the pen and do nothing more- this does not save a sick pig's life- only aggressive skilled syringe feeds will.

    I have also used critical care to provide supplementary feedings for my senior guinea pigs who were on the skinny side- giving them some extra calories each day with 1-2 feedings.

    Lastly, one of the best courses of actions for diarrhea and bloat (along with a vet visit and prescribed medications) is taking the fresh droppings of a healthy guinea pig and mashing it up into the critical care so it can be syringe fed. This is the best probiotic for a sick guinea pig intestine- there is nothing better! It helps restore normal gut flora balance when given as a preventative measure to guinea pigs on antibiotics.

    I currently care for 6 guinea pigs but have had as many as 12 at one time. I wish Oxbow would make critical care in 5 lbs bags- I would buy it! We go through this product quickly in my home because it clearly saves lives.

    I have witnessed guinea pigs stop eating in a life threatening manner with problems as simple as URI's/ UTI's/upset but from antibiotics all the way to deadly bordatella and bloat. Critical care has helped in all of these situations. If you love your pet guinea pig, keep a bag of this in your home along with the syringes needed to properly feed the sick pig.

    education: M.D.
    experience: 12 years of pro-actively caring for numerous guinea pigs, taking them to exotics vets, reading veterinary text books/research papers. I am committed to helping improve the level of knowledge currently available about guinea pig veterinary medicine.
    14 out of 15 people found this helpful.
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  4. JanetSeptember 18, 2013
    My four week old bunny is alive and well thanks to Oxbow Critical Care . She is now 8 weeks old . Thank-you.
    Rating 5 out of 5
    my four week old bunny is alive and well thanks to critical care. She is now 8 weeks old. Thank-you so much.
    2 out of 2 people found this helpful.
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  5. JoanApril 2, 2014
    Saved Cody's Life
    Rating 5 out of 5
    Critical care is definitely not my rabbit's favourite. Cody sniffs it and walks off, but when he's sick, he needs the nutrients critical care can give him and it has saved him twice. Fellow rabbit owners, your rabbit may not enjoy being syringe fed, so be patient (took me nearly 2 hours the first couple times). Be encouraging, speak softly and use a soft blanket that they're use to and like.
    11 out of 14 people found this helpful.
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  6. DanielleNovember 3, 2013
    Rating 5 out of 5
    I was given critical care for my sick 5 week old bunny by the Vet hospital. It saved her life. She was so small and wasn't eating very well. She was endanger of starving to death in the next few days. I had to force feed her Critical Care Apple Banana flavor at first until she began to take it willingly by spoon. It is easy to mix with water to the desired consistancy and my bunny loved the flavor. My mom calls in Ensure for rabbits since it adds necessary calories and nutrition. She is now a fat, healthy 15 weeks old and loves to eat!!!! If it wasn't for critical care she would have surely died. I reccomend this product to any pet owner who has a sickly pet or a runt. The intervention will save your pet's life.
    2 out of 2 people found this helpful.
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  7. TPFebruary 8, 2014
    Great stuff
    Rating 5 out of 5
    Our guinea pig was found to have weak bones due to low density. they believe that whoever had him before us did not give him the proper nutrition.
    So he has to eat this for the rest of his life and he purrs when my daughter brings it to him. he absolutely loves it. and due to his bone problems he cannot eat carrots too so we had some carrot baby food and he loves that too
    I hope someday to buy a huge case of this since it's mostly all he eats
    he cannot even chew his hay. but the vitamin c is helping too

    so very glad this stuff is around
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  8. JesseJuly 5, 2013
    Rating 5 out of 5
    Is critical care suitable for 6 day old bunnies? It was given to me by my local vet and i'm worried that they may be to young!
    1 out of 3 people found this helpful.
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  9. MalinSeptember 5, 2013
    Very good feed
    Rating 5 out of 5
    This feed has been saving for our guinea pigs when they were ill (for example, when they had a stomach ache or problems with your teeth). This feed really works - our guinea pig has been completely restored and largely thanks to critical care. We are so grateful that this feed is. Highly palatable and guinea pigs really like it!
    5 out of 7 people found this helpful.
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