How to Feed Oxbow Critical Care: A Step-by-Step Guide for Small Mammals
- Animal Medical Center
- 2 days ago
- 2 min read
Updated: 13 hours ago

When a rabbit, guinea pig, or other small mammal stops eating due to illness, injury, or digestive problems, Oxbow Critical Care can be a lifesaver. Proper feeding technique is key to ensuring your pet gets the nutrition they need safely.
This guide walks you through the steps for effective syringe feeding.
Step 1: Gather Supplies
You’ll need:
Oxbow Critical Care powder
Warm water (around 100°F / 38°C)
A clean syringe (usually 5–12 mL for small mammals)
Towels or a soft surface to safely hold your pet
Optional: small bowl for mixing
Step 2: Prepare the Formula
Measure the recommended amount of Oxbow Critical Care powder (check the package or your veterinarian’s instructions).
Slowly add warm water to the powder, mixing until you get a smooth, lump-free consistency.
The mixture should be pourable but not too thin; it should stick slightly to the syringe without dripping too fast.
Test the temperature to ensure it is warm, not hot, to avoid burning your pet’s mouth.
Step 3: Secure Your Pet Safely
Place your pet on a soft surface or hold them gently in a towel.
Keep their head slightly elevated to prevent choking or aspiration.
Calmly speak to your pet to reduce stress.
Step 4: Loading the Syringe
Draw the Critical Care mixture into the syringe, tapping gently to remove air bubbles.
Check for smooth flow; adjust thickness if it’s too difficult to push.
Step 5: Feeding Technique
Place the syringe into the side of your pet’s mouth, between the cheek and teeth (not directly in front of the teeth).
Slowly depress the plunger, allowing your pet to swallow naturally.
Feed small amounts at a time to prevent choking.
Pause as needed and let your pet swallow before giving more.
Tip: Never force-feed or squirt too quickly — it can cause aspiration (food entering the lungs), which is dangerous.
Step 6: Monitor Intake
Keep track of how much your pet consumes at each feeding.
Offer multiple small feedings throughout the day as directed by your veterinarian.
Watch for signs of stress, choking, or difficulty swallowing.
Step 7: Clean Up
Rinse the syringe thoroughly with warm water after each feeding.
Store any unused prepared formula in the refrigerator for a short period (follow package instructions).
Wash hands and clean surfaces to maintain hygiene.
Step 8: Monitor Your Pet’s Recovery
Look for improvements in appetite, energy, and stool production.
Notify your veterinarian immediately if your pet refuses the formula, vomits, or shows worsening symptoms.
Bonus Tips
You can mix a small amount of Critical Care with mashed veggies or a favorite safe food to entice reluctant eaters.
Patience and gentle handling are essential — feeding can be stressful for both you and your pet.
Always follow your veterinarian’s instructions regarding frequency and quantity.
Our Recommendation
Feeding Oxbow Critical Care can be intimidating at first, but it’s a critical lifeline for sick or recovering small mammals. With patience, gentle handling, and proper technique, you can help your pet maintain strength, prevent dangerous weight loss, and support recovery until they’re ready to eat on their own.

