CAS Options
120 SOFT Chews
Starting At
$68.99
CAS Options
$68.99
In Stock
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$55.20
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Guaranteed lowest authorized price. Learn more.
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Guaranteed lowest authorized price. Learn more.
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Usually ships the same weekday before 3pm CT.
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Cats up to 5 lbs: 1/2 tablet daily
Cats over 5 lbs: 1 tablet daily -
Dogs up to 25 lbs: 1/2 tablet twice daily
Dogs 26 to 50 lbs: 1 tablet twice daily
Dogs 51 to 100 lbs: 2 tablets twice daily
Dogs 100+ lbs: 3 tablets twice daily -
Cats up to 5 lbs: 1/2 soft chew daily
Cats over 5 lbs: 1 soft chew daily -
Dogs up to 25 lbs: 1/2 soft chew twice daily
Dogs 26 to 50 lbs: 1 soft chew twice daily
Dogs 51 to 100 lbs: 2 soft chews twice daily
Dogs over 100 lbs: 3 soft chews twice daily
What is Vet Classics CAS Options for Dogs and Cats?
- CAS Options is an antioxidant and immune support supplement for dogs and cats.
- It helps maintain a healthy immune system and contains a wide variety of antioxidants to reduce free radicals in the body.
- It also includes vitamin A, C, and E.
- Soft chews and flavored chewable tablet are easy to give.
What else should I know about CAS Options?
- Promotes immune system health.
- Includes multiple sources of antioxidants.
- Contains vitamin A, C, and E.
- Helps reduce free radicals.
What problems could my dog or cat have with CAS Options?
- Discuss this and any supplements with your veterinarian before starting to give them.
How do you use CAS Options?
- Give as directed by your veterinarian.
What is in CAS Options?
- CAS Options contains a wide variety of antioxidants to reduce free radicals in the body.
- CAS Options has Reishi, Maitake, Shiitake, and Turkey Tail.
- It also includes vitamin A, C, and E.
Will I get what I see in the picture?
- CAS Options is a brand name. You will receive the exact brand that you request.
Is it important for my dog or cat to finish all of the CAS Options?
- Dogs and cats may use CAS Options for different lengths of time. Please consult your veterinarian if you have any questions.
Review Summary
17 total reviews
Rated 4.76 out of 5 stars
75% of respondents would recommend this to a friend
Ratings Distribution
16 5 star reviews
0 4 star reviews
0 3 star reviews
0 2 star reviews
1 1 star reviews
Most Liked Positive Review
great work ons older dogs
i use this on a 15 year old Siberian Husky. The vet recommended it as she has some lumps and she is too old to do anything. She has been taking these for the last 4 years and doing fine.... I now give it to the other two dogs for preventive. Helps their immune system also.
Most Liked Negative Review
Hard to say
My dog is going thru chemo, I got it to support her immune system, but possibly the nausea was the reason she wouldn't touch it. I'd suggest buying a small size first as you can't return it.
Reviews
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Immune boosting mushrooms
From UndisclosedComments about CAS Options 120 Chewable TabletsWe started our girl on CAS options at the recommendation of our holistic veterinarian. It's a wonderful immune booster and prophylactic .-
![Immune boosting mushrooms]()
Zoe
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Great product thumbs 👍 to our vet.
From UndisclosedComments about CAS Options 120 Chewable TabletsMy Chloe loves these chewables our vet recommended.-
![Great product thumbs 👍 to our vet.]()
Chloe & Homer "the love ❤ of my life"
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Helping my pet achieve better health
From UndisclosedComments about CAS Options 120 SOFT ChewsThis product is helping one of my dogs build his immune system. -
This medication is helping my Dachshund
From UndisclosedComments about CAS Options 120 Chewable TabletsMy Dachshund was diagnosed with cancer in July 2020. She was given 2-3 months to live. The CAS Options, along with other supplements and a homeopathic approach, have extended her life to a very high quality. -
Still trying vitamin
From UndisclosedComments about CAS Options 120 Chewable TabletsSee if it will help with wart -
Miracle supplement for my older Newfies!
From UndisclosedComments about CAS OptionsThese are amazing for older dogs who show signs of stress or Cushings, but test negative for Cushings. Seriously amazing! Cortisol levels have dropped to the normal range within a month of starting these on a daily basis. Close to a miracle supplement as far as I am concerned - we tried so many other natural supplements and nothing else worked. -
Better bowel control?
From UndisclosedComments about CAS OptionsLabrador with cauda equina symptoms including decal incontinence. Consistently taking themes seems to result in improved bowel control. Pricey, but worth it. -
I will continue to buy this product again and again
From UndisclosedComments about CAS OptionsI know how beneficial mushrooms are for us, which is why I take a mushroom supplement. So when I saw Vetrx's CAS options supplement, containing 4 different mushrooms and vitamins for dogs and cats, with antioxidants and immune support I figured it would be good for my 9 year old Dalmatian. After seeing, within weeks, improved energy and movement in her I started giving it to my 2 younger Dalmatians. -
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Would recommend
From UndisclosedComments about CAS OptionsUsed for cancer support. My girl feels good despite all she has going on and for that we are forever grateful. -
Highly recommended product!
From UndisclosedComments about CAS OptionsExcellent product and a great price!
Displaying Reviews 1 - 10
Q & A
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Is there any difference in the quantity of ingredients in the tablets vs the chews??
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According to the manufacturer’s product label, CAS Options soft chews and tablets contain the same amount of active ingredients in both formulas.
Verified Answer
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My Lab has severe allergies, can you please advise of ingredients??
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Active Ingredients per 3 g Tablet: Reishi Mushroom 578 mg, Shiitake Mushroom 446 mg, Turkey Tail Mushroom 150 mg, Maitake Mushroom 95 mg, Milk Thistle 79 mg, Calcium Ascorbate (Vitamin C) 60 mg, Coenzyme Q-10 1 mg, Selenium 0.026 mcg, Vitamin A 1050 IU, Vitamin E (D-alpha Tocopheryl Acetate) 53 IU Inactive Ingredients: Dicalcium Phosphate, Distilled Monoglycerides, Magnesium Stearate, Microcrystalline Cellulose, Natural Flavoring, Silicon Dioxide.
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Where do the mushrooms come from??
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According to the manufacturer, the mushrooms in CAS Options come from Canada. The Shiitake and Maitake mushrooms are organic.
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Is this product appropriate to give a canine currently on a lomustine 60mg Q21day regiment??
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CAS Options is a non-prescription nutritional supplement with antioxidants and vitamins. According to the manufacturer this product does not have any reported drug interactions. We recommended consulting with your veterinarian to determine if this product will suit your pet's needs.
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Can you give this product be given to puppies ??
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According to the manufacturer, this product is designed for adult dogs. We recommend talking with your veterinarian before using this product with a puppy.
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Is this made by Vet Classics??
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The manufacturer is Vet Resources, which is now part of Vet Classics.
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I know this recommends to give the dogs 2 tablets twice a day for their weight but I am not with these sweet dogs all day..is it bad if I give all 4 of the tablets to them at once??
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According to the manufacturer, it is recommended to give this product twice daily. Please consult with your veterinarian regarding the proper dosage for your pet. Thank you, VetRxDirect
Verified Answer
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Displaying Questions 1 - 7