---
product_id: 715853757
title: "Onco Support - Dog & Cat Immune Support Supplement with Milk Thistle, Spirulina, Kelp Powder - Aids in Gut Health and Digestive Support - 300g"
brand: "rx vitamins"
price: "HK$864"
currency: HKD
in_stock: true
reviews_count: 4
category: "Rx Vitamins"
url: https://www.desertcart.hk/products/715853757-onco-support-dog-and-cat-immune-support-supplement-with-milk
store_origin: HK
region: Hong Kong
---

# Kelp-powered gut health Spirulina-rich immune boost Milk thistle detox & defense Onco Support - Dog & Cat Immune Support Supplement with Milk Thistle, Spirulina, Kelp Powder - Aids in Gut Health and Digestive Support - 300g

**Brand:** rx vitamins
**Price:** HK$864
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your pet’s wellness game with every scoop!

## Quick Answers

- **What is this?** Onco Support - Dog & Cat Immune Support Supplement with Milk Thistle, Spirulina, Kelp Powder - Aids in Gut Health and Digestive Support - 300g by rx vitamins
- **How much does it cost?** HK$864 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/715853757-onco-support-dog-and-cat-immune-support-supplement-with-milk)

## 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

- • **Palatable & Versatile:** Mixes seamlessly with wet or dry food—no fuss, just happy, healthy pets.
- • **Holistic Immune Shield:** Harness the power of spirulina and milk thistle to fortify your pet’s natural defenses daily.
- • **Vet-Recommended Dosage:** Easy-to-use scoop system tailored per 50 lbs. for precise, stress-free supplementation.
- • **Gut Health Game-Changer:** Advanced probiotic blend with kelp ensures balanced digestion and vibrant vitality.
- • **Antioxidant Detox Formula:** Milk thistle and zinc team up to cleanse and rejuvenate your pet’s system from within.

## Overview

Rx Vitamins Onco Support is a premium 300g immune and digestive health supplement for dogs and cats, featuring a potent botanical blend of spirulina, milk thistle, and kelp powder. Designed to support immune resilience, gut balance, and detoxification, it’s vet-recommended for pets undergoing health challenges or seeking enhanced vitality. Easy to administer with a precise scoop per 50 lbs., this supplement promotes sustained wellness and energy, making it a trusted choice among pet owners committed to proactive care.

## Description

desertcart.com : Rx Vitamins Onco Support - Dog & Cat Immune Support Supplement with Milk Thistle, Spirulina, Kelp Powder - Aids in Gut Health and Digestive Support - 300g : Pet Supplies

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

- Advanced Immune Support – Packed with spirulina for dogs, and milk thistle for dogs, this supplement promotes cat & dog immune support and gut health for dogs, supporting vitality and digestion.
- Nutrient-Rich Botanical Blend – Give your pet the care they deserve with this dog multivitamin powder featuring kelp for dogs, milk thistle for dogs, and vitamin E for dogs to support dog coat health, digestion, and wellness.
- Gut & Digestive Health – Keep your pet’s tummy happy with dog probiotic powder that aids digestion and promotes balanced gut health for dogs and cats, helping them stay active and healthy.
- Antioxidant & Detox Support – Enriched with milk thistle supplement for dogs, zinc for dogs, and vitamin E for dogs, this formula helps maintain dog immune support and boosts natural detoxification.
- How to Use - Give 1 scoop per 50 lbs. (22 kg) of body weight daily or as advised by your veterinarian.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F1ZPJQ61 |
| ASIN  | B0F1ZPJQ61 |
| Best Sellers Rank | #41,673 in Pet Supplies ( See Top 100 in Pet Supplies ) #60 in Cat Multivitamins #358 in Dog Multivitamins |
| Brand Name | Rx Vitamins |
| Customer Reviews | 4.3 4.3 out of 5 stars (246) |
| Date First Available | April 1, 2025 |
| Date First Available  | April 1, 2025 |
| Directions | For each 50 lbs. (22 kg) of body weight, administer 1 scoop of the powder daily or as prescribed by your veterinarian. |
| Item Package Dimensions L x W x H | 5.04 x 4.02 x 3.5 inches |
| Item Weight | 12.3 ounces |
| Item model number | P-RX8820 |
| Item model number  | P-RX8820 |
| Manufacturer | Rx Vitamins |
| Manufacturer  | Rx Vitamins |
| Model Name | Onco |
| Number of Items | 1 |
| Package Dimensions  | 5.04 x 4.02 x 3.5 inches; 12.35 ounces |
| Specific Uses for Product | Immune Support |
| Target Audience Keyword | Cats, Dogs |

## Product Details

- **Brand:** Rx Vitamins
- **Flavor:** New Label
- **Item Form:** Powder
- **Manufacturer:** Rx Vitamins
- **Product Benefits:** Digestive Care, Immune Support, Supports Skin & Coat Health

## Images

![Onco Support - Dog & Cat Immune Support Supplement with Milk Thistle, Spirulina, Kelp Powder - Aids in Gut Health and Digestive Support - 300g - Image 1](https://m.media-amazon.com/images/I/71X5qHLNEgL.jpg)

## 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 - Dog & Cat Immune Support Supplement with Milk Thistle, Spirulina, Kelp Powder - Aids in Gut Health and Digestive Support - 300g
- Rx Vitamins for Pets Rx Zyme for Dogs & Cats - Help Gastrointestinal Discomfort - Add to Food - 120g Powder
- Rx Vitamins Rx Biotic Probiotics for Dogs & Cats - Digestive Supplement for Pets - 2.12 oz

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-04*