--- product_id: 23188076 title: "Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g" brand: "rx vitamins" price: "¥487" currency: JPY in_stock: false reviews_count: 4 url: https://www.desertcart.jp/products/23188076-rx-vitamins-onco-support-immune-supplement-for-dogs-and-cats store_origin: JP region: Japan --- # Gluten-free 300g weight Amino acid power Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g **Brand:** rx vitamins **Price:** ¥487 **Availability:** ❌ Out of Stock ## Summary > 🐶 Unleash the Power of Health for Your Furry Friends! ## Quick Answers - **What is this?** Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g by rx vitamins - **How much does it cost?** ¥487 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/23188076-rx-vitamins-onco-support-immune-supplement-for-dogs-and-cats) ## Best For - rx vitamins enthusiasts ## Why This Product - Trusted rx vitamins brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Effective:** Crafted with high-quality, gluten-free ingredients for peace of mind. - • **Tailored for All Pets:** Perfect for both dogs and cats, ensuring every furry friend gets the care they deserve. - • **Boost Your Pet's Immunity:** Formulated with complex nutraceuticals and botanicals for optimal immune support. - • **Nature's Best Ingredients:** Includes spirulina powder and bioactive nutrients for a healthy inflammatory response. - • **Elevate Their Quality of Life:** Designed for pets with chronic conditions or those undergoing long-term treatments. ## Overview Rx Vitamins Onco Support is a premium immune supplement for dogs and cats, featuring a potent blend of amino acids, spirulina powder, and bioactive nutrients. This 300g gluten-free powder is designed to enhance the immune system and promote a healthy inflammatory response, making it ideal for pets with chronic conditions or those on long-term treatments. ## Description About Rx Vitamins Onco Support Immune Supplement for Dogs and Cats If you're thinking about giving your pet an immune support supplement, don't settle for just anything! With Rx Vitamins Onco Support for Dogs and Cats, you can offer your furry friend vitamins, minerals, and amino acids to promote a strong immune system. Best of all, they'll love the highly- palatable flavor! Our immune system support formula includes amino acid L-Glutamine, which is key for managing healthy inflammation levels and other common side-effects from some treatments. The bioavailable probiotic blend promotes a healthy digestive system, and the vitamins and minerals help replenish nutrients lost due to illness. Formulated with the ailing pet in mind, our dog and cat immunity support powder is an easy-to-administer option to supply vital nutrients in a supplement your pet will love. When it comes to dog and cat supplements, you have plenty of options, but there's a reason pet parents everywhere reach for Rx Vitamins; our pet supplement formulas are made with safe, effective, and high-quality ingredients. For your furry friend's immune support needs, reach for Rx Vitamins Onco Support Immune Supplement for Dogs and Cats! Review: Excellent supplement for dog lymphoma - Our dog has lymphoma and after scouring the internet and talking to others with dogs with lymphoma this Onco Support came highly recommended. It has all the necessary ingredients to support his system while undergoing treatments and as well as for those who elect non treatment. I combine this with Super Snout Mushrooms mixed in his food with a little warm water and he eats it up. Prior, he had gone over 4 days refusing food and vomiting but has not had one issue since returning to eating with this supplement added to his food. His energy level is back to some degree and I am just happy to know he’s getting the necessary quality supplements to support his entire system as he battles this horrid disease. Onco Support is a rather fine power and comes with a scoop. One scoop is suggested once a day. Once it is mixed with food, either wet or dry, it mixed in great. With water it does get a little thick only to a light gravy texture but my dog loves that. One could just add more water or no water at all if their dog doesn’t like that consistency in their food. There isn’t any odor and a little goes a long way. Once again, this product came highly recommended for dogs with lymphoma and I couldn’t be more happy with this product. Review: Excellent for post cancer dog - My 10 yr old Siberian husky underwent radiation and chemo last year for a grade II mast cell tumor with lymph node infiltration. She got through it all fine, but was recovering slowly from the effects of the treatment. I started supplementing her with this about 5 months ago, and then stopped for a month because I was giving her so many supplements that some seemed redundant. I noticed a marked difference in her activity level after stopping treatment. She was less inclined to play, and slept more (enough that I brought her into the vet to have blood work done). The vet found nothing wrong. The only change I had made was taking her off the supplement. So needless to say, she is back on it, and thankfully, her activity level is increasing. It's palatable, easy to feed (comes with a scoop), and has a god ingredient list. I also like this company's nutrigest product, and feed it to my GSD, who has a tendency toward digestive upset. I buy their products with confidence that they do what they profess. ## Features - Cat & Dog Immune Supplement: With complex nutraceuticals and botanicals, this cat and dog supplement promotes a strong immune system and helps enhance quality of life for ailing pets. - Amino Acid Powder: This cat and dog nutritional supplement includes amino acids which help promote healthy inflammation levels and support the immune system. - Cat & Dog Health Supplies: This vitamin and green tea supplement is formulated to provide nutritional support for the immune system for pets with chronic conditions or taking long-term treatments. - Anti Inflammatory for Dogs & Cats: Bioactive nutrients in this dog and cat supplement help support healthy inflammatory response - High-Quality Dog & Cat Health Supplies: Made with safe and effective ingredients, this cat and dog supplement promotes a healthy immune system for pets ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003PQS404 | | ASIN | B003PQS404 | | Allergen Information | Gluten Free | | Best Sellers Rank | #41,161 in Pet Supplies ( See Top 100 in Pet Supplies ) #359 in Dog Multivitamins | | Brand Name | Rx Vitamins | | Customer Reviews | 4.4 4.4 out of 5 stars (247) | | Date First Available | June 5, 2010 | | Flavor | Old Label | | Global Trade Identification Number | 00708429088202 | | Is Discontinued By Manufacturer | No | | Item Form | Powder | | Item Type Name | Pet Multivitamins | | Item Weight | 300 Grams | | Item model number | 708429088202 | | Manufacturer | Fulfillment Advantage Ventures, Inc | | Manufacturer | Fulfillment Advantage Ventures, Inc | | Manufacturer Part Number | 708429088202 | | Model Number | 708429088202 | | Number of Items | 1 | | Pet Type | Cat, Dog | | Product Benefits | Digestive Care, Immune Support | | Product Dimensions | 5.75 x 3.5 x 3.5 inches; 10.58 ounces | | Specific Uses For Product | Immune Support | | Target Species | Cat, Dog | | UPC | 708429088202 | | Unit Count | 300 Grams | | Warranty Description | Manufacturer Warranty | ## Product Details - **Brand:** Rx Vitamins - **Flavor:** Old Label - **Item Form:** Powder - **Item Weight:** 300 Grams - **Product Benefits:** Digestive Care, Immune Support ## Images ![Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g - Image 1](https://m.media-amazon.com/images/I/71YpESdaTpL.jpg) ![Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g - Image 2](https://m.media-amazon.com/images/I/81Fw5fKJY9L.jpg) ![Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g - Image 3](https://m.media-amazon.com/images/I/81VpWsELOdL.jpg) ## Available Options This product comes in different **Pattern** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent supplement for dog lymphoma *by S***L on May 29, 2019* Our dog has lymphoma and after scouring the internet and talking to others with dogs with lymphoma this Onco Support came highly recommended. It has all the necessary ingredients to support his system while undergoing treatments and as well as for those who elect non treatment. I combine this with Super Snout Mushrooms mixed in his food with a little warm water and he eats it up. Prior, he had gone over 4 days refusing food and vomiting but has not had one issue since returning to eating with this supplement added to his food. His energy level is back to some degree and I am just happy to know he’s getting the necessary quality supplements to support his entire system as he battles this horrid disease. Onco Support is a rather fine power and comes with a scoop. One scoop is suggested once a day. Once it is mixed with food, either wet or dry, it mixed in great. With water it does get a little thick only to a light gravy texture but my dog loves that. One could just add more water or no water at all if their dog doesn’t like that consistency in their food. There isn’t any odor and a little goes a long way. Once again, this product came highly recommended for dogs with lymphoma and I couldn’t be more happy with this product. ### ⭐⭐⭐⭐⭐ Excellent for post cancer dog *by N***A on July 25, 2013* My 10 yr old Siberian husky underwent radiation and chemo last year for a grade II mast cell tumor with lymph node infiltration. She got through it all fine, but was recovering slowly from the effects of the treatment. I started supplementing her with this about 5 months ago, and then stopped for a month because I was giving her so many supplements that some seemed redundant. I noticed a marked difference in her activity level after stopping treatment. She was less inclined to play, and slept more (enough that I brought her into the vet to have blood work done). The vet found nothing wrong. The only change I had made was taking her off the supplement. So needless to say, she is back on it, and thankfully, her activity level is increasing. It's palatable, easy to feed (comes with a scoop), and has a god ingredient list. I also like this company's nutrigest product, and feed it to my GSD, who has a tendency toward digestive upset. I buy their products with confidence that they do what they profess. ### ⭐⭐⭐⭐ Good product for the right dog, but if your dog is allergic to nutritional yeast, you might want to pass. *by C***L on December 11, 2013* As you can see from other reviews, this is a fantastic product - for the right dog. We recently adopted a 13 year old dog with a number of health issues, and having used other products from this company, I purchased this as a vitamin supplement that I could use on all my dogs (with my vet's OK). I started the dogs out on a half dose, and 2 of them ended up with diarrhea. Again, NOT unusual when you make changes to a dog's diet, so I cut back to a quarter dose. Still terrible diarrhea. That's when I put on reading glasses and took a closer look at the label, and saw that the fourth ingredient on the label is Nutritional Yeast. The 2 dogs that were reacting badly to the product are allergic to Nutritional Yeast. Unfortunately, neither the Amazon description nor the product page at the manufacturer's website at rxvitamins - dot - com (if I put in the link, Amazon will delete it, so just replace "dot" with a ".") provide any information on the actual ingredients in the product. Here is information off the side of the bottle: Active Ingredients per scoop: L-Glutamine (2500 mg), Kelp Powder (760 mg), Lecithin Granules (760 mg), Nutritional Yeast (760 mg), Bio-Agaricus (600 mg),L-Arginine (500 mg), Green Tea Extract (500 mg), Spirulina (500 mg), Sodium Ascorbate (250 mg), Larch Arabinogalactin (250 mg), Silymarin (150 mg), Del-Immune V (25 mg), Zinc picolinate (15 mg), Vitamin A (500 IU), Vitamin E (200 IU), Vitamin D (75 IU), Selenium (25 mcg). Cautions: Safe use in pregnant animals or animals intended for breeding has not been proven. Directions for use: For each 50 lbs. (22.7 kg) of body weight, mix 1 scoop in your pet's food once daily or as prescribed by your veterinarian. Higher does have been associated clinically with increased formula efficiency. Like I said above, the website does not give any of this information, so you may have to call or email the company directly. Contact info is on their website. So, this is a terrific product IF your dog is not allergic to any of the ingredients; in the case of 2 of my dogs, that is nutritional yeast. Had that information been available in the product description or on the manufacturer's website, I would have passed on this particular supplement. ## Frequently Bought Together - Rx Vitamins Onco Support Immune Supplement for Dogs & Cats - Anti Inflammatory for Dogs - Cat Immune Support with Spirulina Powder - 300g - Rx Vitamins CurcuWIN Curcumin for Pets - Cat Immune Support - Dog Digestive Support - 90 ct - Rx Vitamins Essentials for Dogs - Vitamin & Mineral Multivitamin - Supports Immune System Digestive Health & Bone Health - Powder 8 oz/226.80g --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/23188076-rx-vitamins-onco-support-immune-supplement-for-dogs-and-cats](https://www.desertcart.jp/products/23188076-rx-vitamins-onco-support-immune-supplement-for-dogs-and-cats) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-06*