About This Item
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What does Rx Vitamins Onco Support powder do?
It provides nutritional support for the immune system in dogs and cats using a comprehensive blend of nutraceuticals and botanicals.
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Is this product for both dogs and cats?
Yes. It is formulated for both species and can be used as a dog supplement or cat supplement.
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Do I need a prescription?
No. This immune support powder is available without a prescription.
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How do I give it to my pet?
Give orally according to the product label or your veterinarian’s guidance.
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Can I use this with my pet’s current diet?
Yes. It is intended as a nutritional supplement; consult your veterinarian to ensure it fits your pet’s feeding plan.
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When should I consult my veterinarian?
Consult your veterinarian before use if your pet has a medical condition, is on medications, or if you have any questions about incorporating an immune support supplement.
Pet Health Benefits
Every product we carry at PetMeds Directis selected with care to support your pet’s health from nose to tail. Whether it’s prescription meds, supplements, or daily care essentials, we aim to make it easier for pet parents to give their furry companions a longer, happier life. Here are some of the ways PetMeds Direct helps pets thrive:
Pain Relief
Vet-approved medications to reduce inflammation and ease joint or post-surgery pain
Heart Health
Supplements and meds that help manage blood pressure and support cardiovascular function
Disease Prevention
Vaccines and immune-boosting supplements help reduce the risk of serious illness
Skin & Coat Care
Dermatology products and omega-rich formulas promote healthy skin and a shiny coat
Best Practices
Not sure how to get started with PetMeds Direct? We make caring for your pet easier than ever — whether it’s managing prescriptions, stocking up on supplements, or getting expert advice. Explore below for helpful ways pet parents use PetMeds Direct to stay on top of their pets’ health.
Happy Pet Parents
At PetMeds Direct, we’re proud to serve pet lovers all across Canada. From coast to coast, pet parents trust us to deliver fast, reliable, and compassionate care. Here’s what some of them had to say:
About PetMeds Direct
PetMeds Direct was founded with one simple mission: to make pet healthcare easier, faster, and more compassionate for Canadian pet parents. What started as a small idea — helping busy families manage their pets’ prescriptions — has grown into a trusted nationwide pharmacy serving dogs, cats, and everything in between.
We believe pets are family, and every tail wag and purr deserves top-tier care. That’s why we work closely with vets, offer fast shipping, and make prescriptions and wellness products more accessible than ever. At PetMeds Direct, we’re not just delivering meds — we’re delivering peace of mind.
Healthy Pets, Happy Homes
Caring for your pet’s health has never been easier. With just a few clicks, PetMeds Direct delivers trusted medications and wellness products right to your door — fast, affordable, and vet-approved. Say goodbye to last-minute pharmacy runs and hello to peace of mind.
