Your vet writes it. You choose where it gets made.
Mixwell Compounding Pharmacy in Chino prepares custom pet medications in flavors, strengths, and forms your dog, cat, bird, or reptile will actually accept. Ask your veterinarian to send the prescription to Mixwell.
Can you pick the pharmacy that fills your pet's prescription? Yes. A prescription from your veterinarian can be sent to the licensed pharmacy you choose. If you live in Chino, Ontario, Ontario Ranch, or Eastvale, that pharmacy can be Mixwell Compounding Pharmacy, about 15 minutes from most of these neighborhoods.
Mixwell is a compounding only pharmacy. Every prescription is made to order in a purpose built USP 795 and USP 800 compliant lab at 13788 Roswell Ave, Ste 158, Chino, CA 91710.
The one sentence that gets it done
Most pet parents never think to ask. Vet teams say yes to this all the time. Screenshot the card below and read it out loud, or text it to your vet's office.
“Before you send that prescription anywhere, could you send it to Mixwell Compounding Pharmacy in Chino? I want it compounded locally so we can pick it up or get it fast.”
Six reasons the local lab is worth asking for
If your cat spits out the pill, the dose never happened
In a 2022 survey of 2,507 cat owners published in the Journal of Feline Medicine and Surgery, 77.0 percent reported their cat had tried to bite or scratch them during medicating, and 51.6 percent said it had changed their relationship with their cat. Owners rated tablets harder to give than liquids.
Compounding changes the format, not the plan your veterinarian wrote. A tablet can become a flavored liquid, a tiny capsule, a chew, or a gel that goes on the inner ear.
Flavors they will take
Tuna, chicken, liver, beef, and marshmallow are common choices. Your pharmacist matches the flavor to the species and the medication.
Transdermal ear gels
For cats who fight every pill, some medications can be prepared as a gel applied to the inner ear flap. No pill, no syringe, no wrestling.
Doses sized for a 4 pound dog or a 90 gram parakeet
Commercial tablets are built for average animals. Cutting one into quarters is a guess. Mixwell prepares the exact strength your veterinarian specifies, which matters most for small breeds, exotics, birds, and reptiles.
Backordered or discontinued
When a product disappears from the market, ask your veterinarian whether the active ingredient can be compounded instead.
Dye free and allergen free options
Sensitive pets can react to fillers, dyes, and preservatives. Formulations can leave specific ingredients out on your veterinarian's instruction.
You can talk to the person who made it
Call Mixwell and you reach the Chino lab, not a call center queue. Ask how to store it, how to draw up the dose, or what to do if your pet spits it out. Mixwell also delivers across California if a drive to Chino is not practical that week.
How to get your pet's prescription compounded at Mixwell
Ask your veterinarian
At the appointment, ask your veterinarian to send the prescription to Mixwell Compounding Pharmacy in Chino. Tell them the form you need, such as a flavored liquid or a transdermal gel, and let them decide what is appropriate.
Your vet sends it over
Your veterinary team can fax the prescription to (909) 378-7071, send it electronically, or call (909) 378-7301. Mixwell confirms the formula, strength, and flavor with the prescriber before compounding begins.
Pick up or get it delivered
Most compounded preparations are ready in 1 to 3 business days. Pick up in Chino, or ask about delivery. Call (909) 378-7301 to confirm timing and pricing for your specific formula.
What a compounded pet medication can look like
Your veterinarian chooses the active ingredient and the route. Mixwell prepares the form. Here is what is possible for dogs, cats, birds, rabbits, reptiles, and other small companions.
| Dosage form | Best for | Common flavors |
|---|---|---|
| Flavored oral suspension | Pets who refuse tablets, and doses that change with weight | Tuna, chicken, liver, beef, banana |
| Transdermal gel | Cats who resist oral dosing, applied to the inner ear | Unflavored |
| Flavored chews and treats | Dogs who take food readily | Chicken, beef, peanut butter |
| Miniature capsules | Exotics, birds, and very small doses | Unflavored, can be opened onto food |
| Oral paste | Precise small volumes, easy to place in the cheek | Tuna, molasses, chicken |
| Topical creams and ointments | Skin, ear, and paw preparations | Unflavored |
Mixwell is a non sterile compounding pharmacy. Mixwell does not prepare sterile products or injectables.
Made in Chino, close to home
Mixwell sits on Roswell Ave in Chino, minutes from the 71 and the 60. From Ontario Ranch and Eastvale, the drive is usually 12 to 18 minutes. From central Ontario or Chino Hills, closer to 10.
That proximity matters when a prescription changes mid treatment, when your pet stops accepting a flavor, or when your veterinarian adjusts the strength and you need the new batch quickly.
- Chino
- Chino Hills
- Ontario
- Ontario Ranch
- Eastvale
- Pomona
- Diamond Bar
- Rancho Cucamonga
Mixwell also delivers compounded prescriptions across California.
Mixwell Compounding Pharmacy
13788 Roswell Ave, Ste 158
Chino, CA 91710
(909) 378-7301
Fax (909) 378-7071
What Mixwell does and does not do
What Mixwell does
- Compounds pet prescriptions written by a licensed veterinarian
- Adjusts flavor, strength, and dosage form on the prescriber's instruction
- Works from PCCA researched formulas and professional grade bases
- Operates a purpose built USP 795 and USP 800 compliant lab in Chino
What Mixwell does not do
- Dispense without a valid prescription from your veterinarian
- Prepare sterile products or injectables of any kind
- Decide what your pet should take, that is your veterinarian's call
- Accept insurance, so call for pricing before you commit
Pet compounding questions from Chino and Ontario Ranch pet parents
Can I choose which pharmacy fills my pet's prescription?
Yes. Your veterinarian writes the prescription, and you can ask for it to be sent to the licensed pharmacy you prefer. Pet parents in Chino, Ontario, Ontario Ranch, and Eastvale can ask for Mixwell Compounding Pharmacy in Chino.
How do I ask my vet to use Mixwell?
Say the pharmacy name and the city: “Mixwell Compounding Pharmacy in Chino.” Your veterinary team can fax the prescription to (909) 378-7071, send it electronically, or call (909) 378-7301 with questions about the formula.
Do I need a prescription for a compounded pet medication?
Yes. Every compounded veterinary preparation requires a valid prescription from a licensed veterinarian. Mixwell cannot compound a pet medication without one.
How long does compounding take?
Most compounded preparations are ready in 1 to 3 business days, depending on the formula and ingredient availability. Call (909) 378-7301 to confirm the timeline for your pet's specific prescription.
What forms can pet medications be compounded into?
Flavored oral suspensions, transdermal gels, flavored chews and treats, miniature capsules, oral pastes, and topical creams. Your veterinarian selects the route and Mixwell prepares the form.
Do you deliver to Ontario Ranch and Eastvale?
Yes. Mixwell delivers to Ontario Ranch, Eastvale, and surrounding Inland Empire communities, and ships compounded prescriptions across California. Pickup at the Chino pharmacy is also available.
Can I use my HSA or FSA for my pet's compounded medication?
No. Veterinary prescriptions cannot be charged to HSA or FSA accounts. Human compounded prescriptions generally can be. Call (909) 378-7301 for pricing.
Does Mixwell accept pet insurance?
Mixwell does not bill insurance. Payment is made at the pharmacy, and many pet insurance plans allow you to submit the receipt for reimbursement yourself. Call (909) 378-7301 for pricing.
Are compounded pet medications FDA approved?
No. Compounded preparations are not FDA approved products, and the FDA does not review them for safety or effectiveness before they are dispensed. FDA guidance for veterinary compounding is described in CVM GFI #256, and your veterinarian decides when a compounded preparation is medically appropriate for your pet.
Does Mixwell make injections for pets?
No. Mixwell is a non sterile compounding pharmacy and does not prepare sterile preparations or injectables. Mixwell prepares oral, transdermal, and topical forms only.
A compounding only pharmacy
Mixwell dispenses compounded prescriptions and nothing else. The lab is purpose built and USP 795 and USP 800 compliant, and Mixwell is a member pharmacy of the Professional Compounding Centers of America (PCCA), which supplies researched, stability tested formulas and professional grade bases.
California State Board of Pharmacy license PHY #60692.
Sources
- Taylor S, Caney S, Bessant C, Gunn-Moore D. Online survey of owners' experiences of medicating their cats at home. Journal of Feline Medicine and Surgery. 2022;24(12):1283 to 1293. doi:10.1177/1098612X221083752
- Odom et al. Medication compliance by cat owners prescribed treatment for home administration. Journal of Veterinary Internal Medicine. 2025;39(1):e17298. doi:10.1111/jvim.17298
- Siven M, Savolainen S, Rantila S, et al. Difficulties in administration of oral medication formulations to pet cats: an e-survey of cat owners. Veterinary Record. 2017;180(10):250.
- U.S. Food and Drug Administration, Center for Veterinary Medicine. CVM GFI #256: Compounding Animal Drugs from Bulk Drug Substances. August 2022. fda.gov
- American Veterinary Medical Association. Compounding from bulk drug substances. avma.org
Important: This page is educational and is not veterinary advice. Compounded preparations are not FDA approved and are dispensed only pursuant to a valid prescription from a licensed veterinarian. Talk to your veterinarian about what is right for your animal before starting, stopping, or changing any medication.
Keep reading
Your next vet visit is the moment
Ask for Mixwell Compounding Pharmacy in Chino before the prescription goes anywhere else. Or call first and we will tell you exactly what to ask for.