Best CBD Oil For Cats With Cancer

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CBD oils are becoming more and more popular amongst people as well as pet parents. They have a lot of health benefits even for cancer patients and cats are no exception. Here are some of the best CBD oils to help manage your feline friend’s symptoms, including persistent sores, lameness, and unexplained bleeding. Cancer is one of the most dreaded diseases in cats, but hopefuly, there are several steps you can take to improve their quality of life — like giving them CBD oil. Here we explain how CBD can help cats with cancer.

9 Best CBD Oils for Cats With Cancer – 2022 Reviews & Top Picks

Cancer is an illness for cats as much as it is for humans and dogs, and it’s never an easy issue to solve. CBD oil is a homeopathic way to help ease your cat’s symptoms — from anxiety-related stress to pain from their inflamed joints and even nausea caused by chemotherapy 1 — and is steadily increasing in popularity among both cat and dog owners.

To help you decide whether CBD oil will help your cat, we put together these reviews to introduce you to your options and to consider the benefits of this treatment.

A Quick Comparison of Our Winners of 2022

The 9 Best CBD Oils for Cats With Cancer

1. Billion Pets Hemp Oil for Dogs and Cats — Best Overall

Weight: 30 ml
Potency: 75000 mg
Organic: Yes
Ingredients: Hemp oil, omega fatty acids

Our best overall CBD oil for cats with cancer is the Billion Pets Hemp Oil for Dogs and Cats. Using organic, non-GMO ingredients, this oil supports all breeds of feline and is recommended by veterinarians. Along with the hemp oil content to ease your cat’s stress and other health problems — like arthritis and other muscle and joint issues — Billion Pets supports your cat’s outer health and uses omega fatty acids to aid their skin and coat.

Some cat owners said that their cats vomited or experienced diarrhea after using this oil. It’s not recommended for use on pregnant or lactating cats.

2. K2xLabs Buster’s Organic Hemp Oil — Best Value

Weight: 30 ml
Potency: 30000 mg
Organic: Yes
Ingredients: Hemp oil, omega-3 and -6 fatty acids

The K2xLabs Max Potency Buster’s Organic Hemp Oil is the best CBD oil for cats with cancer for the money. Available in three pack sizes — single or packs of two or four — this oil supports both single- and multi-cat households.

K2xLabs is 100% vegan friendly and gluten-free and contains no GMO ingredients. It uses omega-3 and omega-6 oils to keep your feline’s coat shiny and smooth while easing their anxiety, inflammation, and joint pain. This oil is also gentle on sensitive stomachs and can help alleviate digestive issues and loss of appetite.

A few users have said that their cats were overly tired after using this product.

3. Healpark Hemp Oil for Dogs and Cats — Premium Choice

Weight: 30 ml
Potency: 1500 mg
Organic: Yes
Ingredients: Hemp oil, omega-3, -6, and -9 fatty acids

Healpark Hemp Oil for Dogs and Cats is formulated to reduce pain, inflammation, and anxiety. The non-GMO ingredients are organic and aren’t combined with unhealthy additives or other fillers found in some oils. This hemp oil also uses omega fatty acids 3, 6, and 9, along with added vitamins, to support your feline’s skin and coat. It works to keep your cat healthy inside and out

This is one of the more expensive options out there, and some owners have reported their cats suffering from vomiting and diarrhea after ingesting this oil. A few cats dislike the flavor and won’t touch this product.

4. Pet Standards Vitality Organic Hemp Oil for Dogs & Cats

Weight: 30 ml
Organic: Yes
Ingredients: Hemp oil, omega-3, -6, and -9 fatty acids

For cats that suffer from anxiety, joint pain, inflammation, and other health issues, the Pet Standards Vitality Organic Hemp Oil for Dogs & Cats can help ease their ailments and give their mobility a boost. The formula contains iron, calcium, and vitamins A, C, and E to support your feline’s well-being. Omega oils 3, 6, and 9 are also included to keep your cat looking healthy on the outside.

Using gluten-free and non-GMO ingredients, this oil is flavorless to entice picky felines to eat it.

While the recipe claims to ease your cat’s health problems, some owners have mentioned that it does not affect their feline.

5. MaxHemp High Potency Hemp Oil

Weight: 30 ml
Potency: 500,000 mg
Organic: Yes
Ingredients: Hemp oil, omega-3, -6, and -9 fatty acids

Sold in a pack of two 30ml bottles, the MaxHemp High Potency Hemp Oil supports your cat’s immune system, soothes and lubricates stiff joints, and reduces inflammation. This oil uses a careful blend of vitamins and omega-3, -6, and -9 fatty acids to reduce anxiety, encourage your feline’s appetite, and improve their skin and coat health. This option has also been tested and certified.

Unlike other flavorless oils, the MaxHemp uses a mixed mint flavoring to entice your cat to eat it and promote fresh breath. Pickier felines may dislike the taste, however, and refuse to touch it, even if you mix it with their favorite treats.

6. Pawious Hemp Oil for Dogs & Cats

Weight: 2 ounces
Potency: 60000 mg
Organic: Yes
Ingredients: Hemp oil, omega-3, -6, and -9 fatty acids

Affordable, long-lasting, and twice the size of other hemp oils to support multi-cat households, the Pawious Hemp Oil for Dogs & Cats eases your feline’s arthritis, increases their mobility, and strengthens their immune system. Using omega fatty acids 3, 6, and 9 along with vitamins A and E, Pawious is recommended by veterinarians and supports every part of your cat’s body, not just their insides.

Some cat owners have found the dosage and formula to be ineffective for their pets. Fussier felines can be particularly picky about the flavor and refuse to eat it, even when it’s hidden in their food.

7. Charlie & Buddy Hemp Oil

Weight: 30 ml
Potency: 15,000,000 mg
Organic: Yes
Ingredients: Hemp oil, omega-3, -6, and -9 fatty acids

Charlie & Buddy Hemp Oil soothes anxiety and joint pain to aid your feline’s sleep, giving them the rest that they need to ease their health issues. Omega fatty acids 3, 6, and 9 support your cat’s skin and coat, while the included vitamins, B and E, promote a healthy immune system.

Some cat owners have said that their pets vomited after trying this oil, while others have reported that this option was ineffective at alleviating their feline’s issues. Felines that are fussy about what they eat have been known to turn their nose up at the flavor and refuse to eat it, even when it’s mixed with food.

8. PB Pets Hemp Oil for Dogs and Cats

Weight: 30 ml
Potency: 3000 mg
Organic: Yes
Ingredients: Hemp oil, omega-3, -6, and -9 fatty acids

Filled with antioxidants and omega-3, -6, and -9 fatty acids, the PB Pets Hemp Oil for Dogs and Cats is recommended by veterinarians to keep your feline’s fur in top shape. As a full-spectrum hemp oil, PB Pets also helps with a wide range of health issues that your cat can suffer from, whether it’s anxiety, joint pain, stomach upsets, or inflammation.

Although the product claims to help cats of all ages, some owners have mentioned that the formula didn’t ease their feline’s ailments, and some cats will refuse to eat it if they dislike the flavor. Also, the contents settle over time and require a vigorous shake before use.

9. HMone Max Potency Organic Hemp Oil

Weight: 30 ml
Potency: 15,000,000 mg
Organic: Yes
Ingredients: Hemp oil, omega fatty acids

Cruelty and GMO-free, the HMone Max Potency Organic Hemp Oil can be given to your cat topically, mixed with food, or dropped on their tongue. It supports your feline’s immune health and reduces joint pain while easing stress caused by anxiety.

The included omega fatty acids 3, 6, and 9 relieve discomfort from skin conditions to keep your feline’s fur healthy.

Despite the high potency of this option, some owners have said that their pets saw no relief from the recommended dosage or that the oil became less effective over prolonged use. This oil is also one of the more expensive options out there.

Buyer’s Guide: How to Pick the Best CBD Oil for Cats With Cancer

CBD oil is a natural way to support your feline’s health and is slowly becoming more popular among pet owners of cats and dogs. Not only is it good for easing stress and anxiety, such as whenever your pet hears fireworks, but it can also keep your pet’s fur and skin in top shape and alleviate pain from arthritis.

The health benefits also include treating cancers in animals, including your cat or your dog, but there are several things to remember before purchasing CBD oil for your pet.

Image Credit: Erin Stone, Pixabay

CBD Oil vs. Hemp Seed Oil

Many people consider CBD oil and hemp seed oil to be the same thing, but there’s a bit of a difference.

CBD oil is cannabinoid-rich oil extracted from hemp flowers. It’s the compound that helps ease anxious nerves, helps with sleep, and relieves pain, including inflammation from cancers.

Hemp seed oil, on the other hand, is pressed from the seeds and doesn’t contain CBD oil at all. While it’s technically from the same plant, albeit the seeds only, the uses focus more on coat and skin health rather than helping with health issues. Hemp seed oil might not be as effective as true CBD oil in easing your cat’s cancer symptoms.

How Does CBD Oil Help Cats With Cancer?

Although it doesn’t claim to cure cancer, CBD oil contains anti-cancer properties in certain circumstances. Cats, along with humans and dogs, have an endocannabinoid system. This system and its interaction with CBD oil is what eases pain and helps support healthy immune systems, sleep patterns, digestion, cognition, moods, and appetite.

How Much CBD Oil Should You Give Your Cat?

The correct dosage for your cat depends on many factors. Their weight, symptoms, and health, among other things, all play a part in how much CBD oil you should give them. Checking in with your veterinarian for a recommended dosage is the first thing that you should do. They’ll also be able to tell you if it’ll react with any medication that your cat is already taking. Your veterinarian should be familiar with CBD oil and both its benefits and downsides, along with knowing whether it’ll be suitable for your feline.

See also  Bacon Flavor CBD Oil For Dogs

Some bottles have suggested doses based on your pet’s weight. For the first use, though, make sure you only use a drop to test it out, to ensure that your feline isn’t allergic to the carrier oil that your chosen brand uses. Building up to a full dose will give you plenty of time to monitor and control any unwanted effects.

CBD oil works best when placed under the tongue, if your cat will let you. Not only is it absorbed faster there, but your cat will receive more of the dose than when it’s mixed in with their food. Some glass droppers can break if your feline bites down on them, though, so feeding CBD oil to your pet this way should be done with caution.

Image Credit: Erin Stone, Pixabay

What Are the Side Effects of CBD Oil for Cats?

Alongside the list of benefits, including relief from cancer-related ailments, there are a few possible side effects that your cat can have when using CBD oil products. First, check with your veterinarian to make sure CBD oil won’t react with any medication that your feline is already using, as it can affect their drug metabolism.

CBD Oil for Cats with Cancer – August 2022

Can pet owners use CBD oil to treat cats with cancer? Is it safe?

  • Cancer affects cats in many ways and can drastically lower their quality of life. Symptoms such as persistent sores, changing lumps, lameness, unexplained bleeding, and loss of appetite are common among cats with cancer. (1 )
  • Many medications are available to help alleviate the clinical signs of cancer, but can also cause adverse reactions to felines. Cannabidiol, also known as CBD, is a promising solution that could be a natural and safer remedy in treating cancer in cats. (2-3 )
  • Several preliminary studies on CBD have shown that the phytocannabinoid might eliminate cancerous cells in the body (4 ) . Results also showed that CBD inhibited the growth of harmful tumors in a lab setting. (5-6 )
  • Despite the purported benefits of CBD oil, there is a lack of in-depth research regarding its use in animals. Cats that are given CBD formulations may experience side effects such as drowsiness (7 ) , anxiety, nausea, and disorientation.
  1. Best Organic CBD Pet Oil:Pet CBD by Nuleaf Naturals
  2. Fur Favorite:Paw CBD by cbdMD
  3. Most Liked:Pet CBD by 4 Corners Cannabis

NuLeaf Naturals Full Spectrum Hemp CBD Pet Oil

Perfectly formulated CBD for Dogs, Cats, and other four-legged animals
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Natural relief for cats
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CBD Oil Tinctures for Cats is 100% organic, non-GMO, vegan, and gluten-free. It comes in natural and catnip flavor.

Same CBD Oil benefits as for humans

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Can Cats with Cancer Use CBD Oil?

Cancer is one of the most feared health conditions today, and although it is not as common in cats as it is with dogs, it still affects many felines. Some of the symptoms of cancer in cats include persistent sores, lumps that change in size or shape, lameness, unexplained bleeding, and loss of appetite. (8 )

Despite having no cure, there are many medications available that can alleviate the clinical signs of cancer. However, these pharmaceutical drugs also bring with them adverse reactions and harmful side effects that can only worsen the condition of a pet.

One particularly promising solution comes in the form of cannabidiol (CBD), which is the non-psychoactive component of cannabis and the main compound in the hemp plant.

There is a growing number of owners that are beginning to look towards CBD-based cannabis products to ease pain and other conditions in their pets. (9 ) Although there is no precise data suggesting that CBD can cure cancer, there are studies that point towards its therapeutic potential and compatibility in small animals. (10 )

One study in 2018, for instance, shows encouraging results on the effects of hemp-based cannabidiol and terpenes on dogs suffering from osteoarthritis. The majority of the dogs that consumed CBD oil during the trial experienced significantly less pain and better mobility overall. (11 )

The same study also shows that there were no side effects reported and that the dogs can tolerate a dosage of 2 mg per kilogram bodyweight of CBD oil twice each day. These findings may be an indication that the hemp-based nutraceutical is not dangerous for animals. (12 )

A study on the endocannabinoid system (ECS) reveals that humans and animals, with the exception of some insects and protozoans, share this same system in their bodies (13 ) . The ECS is responsible for regulating the functions of the brain, endocrine, and immune tissues, while it also contains cannabinoid receptors. (14 )

Since animals and human beings also possess the same receptors, this means that cats can be naturally receptive to the cannabinoids present in CBD. This research on the ECS may be proof as to why the dogs in the study mentioned earlier did not experience any adverse effects upon consuming CBD oil.

CBD for Cats with Cancer

Three forms of CBD products for cats are available at this time. These include:

CBD Oils (Tinctures)

Oils are the most popular method in administering full-spectrum cannabidiol in cats. When people mention CBD oil for cats, this typically means using tinctures to help ease symptoms.

Cat CBD oil is given by way of a dropper, which is easily applied in the mouth. There are various flavors available for CBD tinctures that pet owners can choose from today.

CBD Capsules

CBD in the form of capsules is an ideal alternative for use in cats as they are provided in pre-measured portions. Each pill can be administered once or twice a day, depending on the recommendation of a veterinarian.

A capsule may contain 5 to 20 mg of CBD, so it is essential to consult a doctor before application. The pills can also be masked in pet food to make administration easier.

CBD Cat Treats

CBD pet treats for cats are also another way to administer CBD to a feline friend conveniently. Cats enjoy consuming treats that are made for them, and this product makes the application process straightforward.

Keep in mind, however, that the dosage in CBD treats may not be as accurate as with oils and capsules. Again, cat owners should talk to a veterinarian to know the proper dosage they should give to their pets.

Can CBD Oil Treat Cancer in Cats?

There are several clinical studies that were carried out, suggesting that CBD can fight the spread and growth of cancerous tumors in cats.

CBD Might Help Eliminate Cancer Cells

In 2011, researchers carried out an examination of how CBD would interact with breast cancer cells. Although the study was done in vitro, which means that it involved using either a sample dish or test tube instead of a live organism, the results were quite impressive.

In the study, the scientists learned that CBD could help induce programmed death on the cancer cells without causing much damage to the healthy cells. (15 ) How CBD was able to do this is relatively unclear, but the compound was able to help destroy damaged tissues, and cause apoptosis or programmed cell death.

Since cancer is primarily characterized by the abnormal growth of cells, the results of this study may be a hint that CBD can contribute in regulating cell growth.

CBD Can Help Stop Tumor Growth

The Breast Cancer Research and Treatment journal published a similar study in the same year regarding CBD and how it affects cancerous cells in the breast.

The study, although carried out on mice, found that CBD can help slow down the growth of breast cancer cells in these rodents. Additionally, researchers also discovered that it could reduce metastasis or the development of secondary malignant growths. (16 )

Another study in 2003 revealed how there are cannabinoid receptors present in healthy and cancerous skin cells of mice. The researchers targeted these receptors and found that by activating the ECS with cannabinoids, the compounds contributed to cell death while helping slow down skin cancer growth. (17 )

There are also several studies regarding CBD and its ability to inhibit angiogenesis. Angiogenesis is the process that allows cancerous tumors to continue growing by way of developing new blood vessels. (18 )

Side Effects That CBD May Help Alleviate

CBD oil is not an approved treatment for cancer in cats. However, it is capable of providing relief to many of the side effects that come with cancer treatment.

Three prevalent options for treating cancer in cats are done via surgery, chemotherapy, or radiation therapy. Although it is impressive to have these choices to manage cancer cells in felines, these treatments have a lot of undesirable effects, especially long-term.

Below are the side effects that CBD may help alleviate in cat cancer treatment:

Nausea and Vomiting

Nausea is a common outcome for cats that undergo chemotherapy and radiotherapy to control the growth of cancer in their bodies. During such treatment, cells that line the intestines and stomach of a cat can be affected, leading to nausea and vomiting. (19 )

There is encouraging evidence that demonstrates how the manipulation of the ECS in animals can regulate this digestive problem.

A study in 2011 shows that a wide variety of animals have the capacity to use the anti-emetic effect of cannabinoids in their bodies. Additional evidence also reveals that cannabinoids may be useful in treating nausea caused by chemotherapy. (20 )

Since CBD is a phytocannabinoid, it is theoretically possible to use it to engage the ECS of cats after they receive chemotherapy to ease their gastrointestinal issues.

Chronic Pain

Tumors that are present in any part of a cat’s body can cause mild to severe pain. Therapies such as radiotherapy, chemotherapy, and surgery can also lead to pain management issues.

Tramadol is a common analgesic given to cats that are suffering from cancer pain. However, its effectiveness is questionable in treating acute or traumatic pain, and its non-opioid mechanism may not work on felines. (21 ) The latest data suggests doses of 2 mg/kg are effective for tramadol.

In 2018, a study on dogs that had osteoarthritis were given CBD oil products to see the safety and analgesic effect it had on canines. The final assessment showed that the dogs had significantly less pain after the CBD treatment and became more active. (22 )

This clinical trial also reported that there were no ill side effects observed despite being given 2 mg per kilo of body weight every twelve hours for four weeks. (23 )

Inflammation

Squamous cell carcinoma in felines can start as a small patch of sore skin and oral tumors, which, if not healed, could be a sign of cancerous cells present in the body. Inflammation of the skin is one of the most common symptoms of squamous cell carcinoma in cats.

Research in 2000 reveals that cannabinoids, particularly with CBD from the cannabis plant, have strong anti-inflammatory properties. This same study investigates cannabinoid efficacy on mice that had collagen-induced arthritis and showed that it was able to improve the conditions on these rodents. (24 )

A follow-up experiment in 2004 using a novel synthetic cannabinoid acid on mice with arthritis generated the same results. The cannabinoid was found to have suppressive effects on cell immune responses while also producing pro-inflammatory mediators, a hint to its usefulness as a novel, anti-inflammatory product. (25 )

Causes of Cancer in Cats

There are several reasons why cancer can show up in the mammalian body of a cat.

Aging

The process of getting older is one of the primary causes of cancer in many cats. There are several reasons as to why aging can cause a higher rate of cancer growth in the body.

One theory is that the mutations on these cells accumulate over the years, which raises the likelihood of cancerous cell division to happen. (26 ) Degeneration of the mammalian body is also another suspect.

For instance, chronic inflammation experienced by cats over the years can damage DNA and weaken the immune system, leading to slow identification and elimination of harmful cells.

Fibrosarcoma

Fibrosarcoma is a common soft tissue cancer in cats that is caused by a combination of genetic and environmental factors. Although no specific cause can be identified, most cats that have fibrosarcoma developed tumors at a prior injection site on their bodies. (27 )

Intact Reproductive Organs

Cats that are not spayed or neutered are at risk of developing cancer in their bodies. The spaying of female cats eliminates the possibility of breast and ovarian cancer, while neutering male ones reduce the incidence of prostate cancer. (28 )

Apart from reducing the risk of cancer development, cats can also live longer and healthier lives when they are spayed and neutered. (29 )

Carcinogens

These chemicals are believed to cause mutations in the genes that eventually become cancerous cells in the body. Cats can be exposed to the same carcinogens as that of humans, which include those coming from tobacco smoke, asbestos, x-ray radiation, and benzene. (30 )

Possible Side Effects of CBD in Cats

Prior to administering CBD to a cat, pet owners should understand its potential side effects so that they are fully aware and prepared for what could happen. Although studies did show that CBD did not cause any adverse reactions during the trials, every cat can have a different response, and there is always the risk of harm.

The probability of these side effects can be higher with the improper use of CBD. Cat owners that notice a negative change in their pet’s attitude may consult a veterinarian to reduce their CBD dosage.

A potential side effect of CBD hemp oil consumption is drowsiness. (31 ) In many cases, cats tend to portray sleepy behavior, which makes this reaction relatively difficult to notice at first.

Nausea, anxiety, changes in appetite, vomiting, weight loss, and disorientation are also other possible side effects of CBD use in cats. Although these reactions are rare, owners should cease applying CBD and contact a veterinarian immediately when they notice these signs.

Conclusion

Cancer in cats may not be as common as they are with dogs, but the symptoms felines experience can lower their quality of life significantly. Some of these signs include persistent sores, lumps that change in shape or size, unexplained bleeding, loss of appetite, and lameness.

There are many medications that pet owners can buy to help alleviate these symptoms. However, pharmaceutical drugs are known to cause adverse reactions that can only worsen the condition of a cat suffering from cancer.

Cannabidiol (CBD) is a promising solution that offers many potential health benefits in easing the symptoms of cancer in felines. Many pet owners are beginning to look towards high-quality CBD-based products with less tetrahydrocannabinol (THC) to help reduce the pain, inflammation, and other conditions their pets are experiencing.

Preliminary research studies on pet CBD show impressive results with the phytocannabinoid being able to help inhibit and even eliminate cancerous cell growth in the body. CBD may also provide relief to several clinical signs related to feline cancer.

However, the lack of in-depth studies on CBD use in animals leaves many questions unanswered, including the possible side effects of its use. Pet owners that notice any adverse reaction in using CBD should cease its application immediately and consult a veterinarian as soon as possible.

CBD Oil for Cats with Cancer: Top Products Reviews

Cancer is one of the most dangerous diseases, and although cats are less likely to suffer from it than dogs, it still affects many of our feline friends. Cats with cancer usually experience persistent sores, lumps that can grow or change shape, unexplained bleeding, loss of appetite, and lameness.

Although there’s no established cure for cancer, many medications are available to alleviate the clinical symptoms of feline tumors. However, conventional treatments also entail the risk of dangerous adverse reactions — not to mention harmful side effects that come with long-term use.

CBD has recently come sparked the attention of medical researchers due to CBD’s potential anti-cancer benefits. CBD is a naturally occurring, non-intoxicating cannabinoid found in hemp plants.

A growing number of pet owners are using CBD-based products to ease pain, inflammation, and other conditions in their pets. Although there is no hard data on the efficacy of CBD for cats with cancer, there are studies that highlight its therapeutic potential and safety in small animals.

Today, we explore the potential benefits of CBD for cats with cancer, covering the current scientific literature and outlining the available forms of CBD for your feline friend.

CBD for Pets: A Brief Overview

A 2018 study showed promising results on the effects of hemp-derived CBD and terpenes on dogs with osteoarthritis. Most of the dogs that consumed CBD oil during the study experienced significantly reduced pain and better mobility in general.

The same study also showed that there were no side effects reported by the dog owners — and that the dogs could tolerate a dose of 2 mg of CBD oil per kilogram twice a day. These results may indicate that hemp-based phytonutrients are safe for animals.

A study on the endocannabinoid system (ECS) has revealed that all mammals, except for some insects and protozoans, share the same ECS in their bodies. The ECS is responsible for maintaining homeostasis throughout the body and for regulating the functions of the brain, endocrine, nervous, and immune systems through a set of CB1 and CB2 cannabinoid receptors.

Since animals and humans have the same receptors, it means that cats can naturally interact with the cannabinoids present in CBD oil. This research on the ECS proves why the dogs in the aforementioned study didn’t experience any adverse effects after taking CBD oil for dogs.

CBD Products for Cats with Cancer

Before we elaborate on the benefits of CBD for cats with cancer, let’s take a look at different product types — and what purpose they serve best.

CBD Oils

CBD oil is the most popular form when it comes to giving CBD to cats with cancer. When people mention the best CBD oil for cats, they typically refer to using tinctures to alleviate certain symptoms.

CBD oil is administered with a dropper, which allows for an easy application in the mouth. You can choose from various flavors, from natural to pet-appealing flavors like bacon or cheese.

CBD Capsules

CBD capsules are a good alternative to use in cats because they provide a fixed amount of CBD in each serving. Each capsule can be administered once or twice a day, depending on your veterinarian’s recommendation.

CBD capsules contain between 5 and 20 mg of CBD, so make sure to consult your vet before application. You can mix these pills into your pet’s food to make them easier to consume.

CBD Treats

Similar to capsules, CBD pet treats contain a premeasured dose of CBD per piece. They come in appealing shapes and textures; you can choose from flavors like bacon, cheese, salmon, catmint, or peanut butter. Just keep in mind that the dosage in CBD treats and capsules may not be as accurate as with oils, so again, you should talk to a holistic veterinarian to estimate the proper dosage for your cat.

CBD Topicals

Topical formulations include products such as lotions, creams, balms, and ointments. They are used to address localized discomfort, such as pain, redness, swelling, and irritation. For cats with cancer, CBD topicals can provide pain relief from stiff and inflamed joints, as well as from abdominal issues. Topicals are often infused with other supportive ingredients that enhance the therapeutic properties of CBD (e.g. herbal extracts, fruit oils, plant-based oils, and butter).

Can CBD Oil Treat Cancer in Cats?

Several clinical trials have suggested that CBD can cause programmed death of cancer cells in cats and contribute to the inhibition of tumor growth. Here we elaborate on both of these properties.

CBD for Cancer Cell Death

In a 2011 study, researchers examined the effects of CBD on breast cancer cells. Although the study was conducted in vitro, meaning it used a sample dish or test tube instead of a living organism, the results were quite promising.

The authors found that CBD could help speed up programmed death on the cancer cells without damaging the healthy ones. The mechanism behind this action is relatively unclear, but the cannabinoid was able to destroy malignant cells, and cause apoptosis (the said programmed cell death).

Since cancer is triggered by the abnormal growth of malignant cells, their elimination proves that CBD is involved in regulating cell growth.

CBD for Tumor Growth

In the same year, the Breast Cancer Research and Treatment journal posted a similar study on breast cancer cells.

This time, the study was conducted on mice and found that CBD can inhibit the growth of breast cancer in the subjects. Moreover, researchers also learned that it could reduce metastasis — a scientific name for the development of secondary cancer growths.

In another study — this time from 2003 — the authors revealed that cannabinoid receptors exist in both healthy and cancerous skin cells of mice. The researchers found that by targeting these receptors with cannabinoids, the compounds induced cell death while slowing down the growth of skin cancer.

Several studies also link CBD with slowed angiogenesis. Angiogenesis is the process that spurs tumor growth by forming new blood vessels.

What Side Effects of Cancer May CBD Alleviate?

Although CBD hemp oil for cats isn’t an approved cancer treatment for cats, it is capable of providing relief from many of the side effects associated with conventional cancer treatments.

Three main options for treating cancer in cats include chemotherapy, radiation therapy, and surgery. Although these methods can effectively manage cancer cells in felines, they also have a lot of long-term side effects, such as vomiting, nausea, loss of appetite, inflammation, pain, and insomnia.

Below we explain how CBD may help alleviate these symptoms in cats with cancer.

Chronic Pain

Cats with cancer experience mild to severe pain. Treatments such as chemotherapy, radiotherapy, and surgery, can also lead to problems with pain management.

Veterinarians usually prescribe Tramadol, which is a popular analgesic for cancer pain. However, its effectiveness in treating acute or traumatic pain is questionable, and its non-opioid mechanism may not provide relief for felines.

The aforementioned study on dogs with osteoarthritis showed that dogs given CBD oil products experience significantly less pain than their counterparts treated with conventional methods. On top of that, the dogs became more active after the study after using CBD oil for dogs with arthritis.

This clinical study also noted that CBD oil didn’t produce any side effects despite a relatively high dosage of 2 mg of CBD per kilo of body weight every 12 hours for one month.

Inflammation

Squamous cell carcinoma in cats begins as a small patch of sore skin and oral tumors, which, if not taken care of, could herald the growth of cancerous cells in the body. Inflammation is the most common contributor to the symptoms of squamous cell carcinoma in cats.

A study conducted in 2000 revealed that whole-plant CBD extracts possess remarkable anti-inflammatory properties. The study also investigated the efficacy of cannabinoids on mice with collagen-induced arthritis and concluded that CBD was able to improve both conditions on these subjects.

A follow-up experiment from 2004 that used a novel synthetic cannabinoid acid on mice with arthritis yielded the same results. The compound was found to have suppressive effects on the immune cells while also producing pro-inflammatory mediators, an indicator that it’s a novel, anti-inflammatory molecule.

Nausea and Vomiting

Nausea is a common side effect in cats that are treated with radiotherapy or chemotherapy to control the growth of cancer. Such treatments affect the lining of the intestines and stomach, leading to nausea and vomiting.

The modulation of the ECS is associated with reduced nausea. A 2011 study showed that a wide range of animals can benefit from the anti-emetic properties of CBD. Additional evidence also points to CBD as a potential antiemetic agent for the side effects of chemotherapy.

Causes of Cancer in Cats

Several factors can trigger or speed up the growth of cancer in a cat, including:

Aging

Aging is inevitable for all animals; it’s also one of the main reasons behind cancers in many cats. Aging can speed up cancer growth for several reasons.

According to one theory, the mutations in aging cells accumulate over the years, which increases the chances of cancerous cell division. Degeneration of the cat’s body is another possible cause.

For example, chronic inflammation experienced by cats over the years may wreak havoc on their DNA and compromise the immune system. This, in turn, may lead to the uncontrolled growth of malignant cells.

Fibrosarcoma

Fibrosarcoma is a type of feline cancer that occurs in the cat’s soft tissue. It is caused by a combination of genetic and environmental factors. Although fibrosarcoma doesn’t have an identified specific cause, most cats with this cancer developed it at a prior injection site.

Intact Reproductive Organs

If your cat isn’t neutered or spayed, they are at a higher risk of developing cancer in their bodies. Unspayed female cats can develop breast and ovarian cancer, while unneutered males may suffer from prostate cancer.

Cats that have undergone spaying or neutering can also live longer and healthier lives.

Carcinogens

Carcinogens are the substances that cause cancer through mutations in the genes that eventually turn into cancerous cells in your cat’s body. Cats can be exposed to the same carcinogens as humans, including food additives, tobacco smoke, asbestos, radiation, benzene, and x-ray.

Is CBD Safe for Cats with Cancer?

Before you give CBD oil to your cat with cancer, you should be aware of the possible side effects.

CBD is generally considered safe and well-tolerated in both humans and animals — even in high doses administered over several weeks.

That being said, giving your cat too much CBD can result in:

  • Dry mouth
  • Dizziness
  • Sedation
  • Changes in appetite
  • Diarrhea

CBD is also known to compromise the liver’s ability to metabolize pharmaceutical compounds in most medications. If your cat is on any medication, consult your veterinarian before incorporating CBD into their routine. Doing so will help you establish the right dosage and avoid potential negative interactions between CBD and your cat’s meds.

Key Takeaways on CBD and Cats with Cancer

While cancer isn’t as common in cats as it is in dogs, the symptoms of feline cancer can significantly worsen the quality of their life. Some of the cancer signs in cats include lumps, persistent sores, loss of appetite, unexplained bleeding, and lameness.

Conventional medications, while effective, can also bring undesired side effects, some of which can have a particularly negative outcome on your cat’s health.

CBD is a promising solution for cats with cancer. Studies have shown that it can induce apoptosis and slow down the growth of cancerous cells. Moreover, you can give your cat CBD oil to help them cope with the side effects of radiation therapy, chemotherapy, and surgery; these include pain, inflammation, nausea, and loss of appetite.

Although we still lack sufficient clinical evidence to support the use of CBD as monotherapy for cancer, current findings are very promising, to say the least.

Do you have any experience in using CBD oil in cats with cancer? Share your stories in the comment section!

References:

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  2. Shrivastava, A., Kuzontkoski, P. M., Groopman, J. E., & Prasad, A. (2011). Cannabidiol induces programmed cell death in breast cancer cells by coordinating the cross-talk between apoptosis and autophagy. Molecular cancer therapeutics, 10(7), 1161–1172. https://doi.org/10.1158/1535-7163.MCT-10-1100 [2]
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  7. Parker, L. A., Rock, E. M., & Limebeer, C. L. (2011). Regulation of nausea and vomiting by cannabinoids. British journal of pharmacology, 163(7), 1411–1422. https://doi.org/10.1111/j.1476-5381.2010.01176.x [7]
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Nina Julia

Nina created CFAH.org following the birth of her second child. She was a science and math teacher for 6 years prior to becoming a parent — teaching in schools in White Plains, New York and later in Paterson, New Jersey.

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