7 Checkpoints for Dog Adrenal Tumors Compiled by Veterinarians — From Diagnosis to Treatment

Oncology/CancerTop PicksMeongsiljang Veterinary Advisory Board

Adrenal gland tumors in dogs are difficult to detect early, making proper management and treatment essential. We’ve compiled our top product recommendations and key selection criteria for your convenience.

Adrenal Tumors in Dogs Are a Dangerous Condition That Is Difficult to Detect Early

An image showing the anatomical structure of a dog's adrenal tumor

Adrenal tumors in dogs often show few early symptoms and progress slowly, making early detection difficult. As the condition advances, signs may include excessive thirst and frequent urination (polyuria-polydipsia), increased appetite (polyphagia), muscle weakness, lethargy, panting, and a distended abdomen that appears swollen. Adrenal tumors and the associated condition, hyperadrenocorticism (Cushing’s disease), are more commonly reported in middle-aged to senior dogs, so regular health check-ups become increasingly important as your dog ages. If a veterinarian suspects an adrenal tumor, diagnosis is confirmed through hormone tests such as the ACTH stimulation test or the dexamethasone suppression test, while imaging studies like abdominal ultrasound or CT scans help determine the tumor’s location and shape. Because these symptoms can easily be mistaken for other conditions, it’s best to seek veterinary care promptly if you notice any of these changes.

Good to Know: Managing Adrenal Tumors in Dogs

Adrenal tumors in dogs are not conditions that can be treated with supplements or health functional foods, so please carefully consider the following three criteria when selecting related products. - Efficacy: Rather than relying on exaggerated claims that a product can directly treat the tumor or reverse adrenal function, objectively verify whether it may help support overall health and maintain your dog’s condition. - Safety: Look for formulations that have minimal side effects even with long-term use, are easy for your dog to consume, and place little burden on the digestive tract. - Veterinary Consultation: The fundamental treatment for adrenal tumors involves surgical removal or medications prescribed by a veterinarian. Therefore, consulting with your attending veterinarian before adding any product is the safe and responsible starting point for proper management.

A scene in which a veterinarian discusses an adrenal tumor management plan.

Good to Know 1: What Symptoms Appear When an Adrenal Tumor Develops?

The symptoms of adrenal tumors in dogs vary depending on the type of tumor. Tumors of the adrenal cortex that overproduce cortisol can cause a distended abdomen, excessive thirst and urination, increased appetite, and thinning of the skin. Tumors that secrete aldosterone typically present with muscle weakness or hindlimb paralysis due to high blood pressure or low potassium levels. Pheochromocytomas, which are tumors of the adrenal medulla, can trigger episodes of high blood pressure, abnormal heart rate, and vomiting. Because symptoms are diverse and easily confused with other conditions, please visit an animal hospital without delay if you notice any of these signs.

Product image of adrenal-support probiotic capsules

Good to Know 2: How Are Diagnosis and Treatment Performed?

Diagnosing adrenal tumors typically involves blood tests, urinalysis, hormone level measurements, and abdominal ultrasound. If needed, CT or MRI scans are used to precisely determine the tumor’s location and size. Treatment options depend on the tumor type, size, whether it has metastasized, and your dog’s overall health. Surgical removal of the adrenal gland is often considered the most definitive treatment, but if surgery isn’t feasible, your veterinarian may prescribe medication to suppress excessive hormone production. The specific treatment plan should always be determined through a thorough evaluation by your veterinarian.

Product image of an adrenal-support supplement utilizing liposomal technology

Good to Know 3: Long-Term Management and Points for Owners to Note

Even after treatment for an adrenal tumor, regular blood tests and monitoring of hormone levels remain essential. Your veterinarian may prescribe steroid supplementation to support your pet until adrenal function recovers following surgery. Proper dietary management and minimizing stress also play important roles in the recovery process. Be cautious of online claims that certain supplements or functional foods can suppress tumors or prevent metastasis, as these assertions lack scientific evidence. Adding supplements without your veterinarian’s prescription can actually interfere with treatment. Always consult your attending veterinarian before making any decisions regarding your pet’s care plan.

Image of a natural-origin adrenal support powder product

Adrenal Tumors in Dogs: Points for Owners to Know

Item	Key Points
Symptoms	Abdominal distension, excessive drinking and urination, muscle weakness, hypertensive crises, etc.
Cause	A tumor of the adrenal cortex or medulla causing hormone overproduction
Diagnosis	Blood and hormone tests, abdominal ultrasound, CT/MRI imaging
Treatment	Surgical resection or veterinarian-prescribed drug therapy
Caution	Beware of unverified supplements and false anti-metastasis claims; regular follow-up examinations are essential

This is not a table recommending specific products or clinics, but criteria to reference when consulting a veterinarian. Treatment and testing decisions must always be made together with a veterinarian through an examination.

Side Effects May Occur With Overdosing

Adrenal tumor management products should be administered under veterinary guidance. Overdosing may cause side effects such as nausea, loss of appetite, and diarrhea. Additionally, potential drug interactions can occur when used with other medications, so always consult your veterinarian before use.

Usage Tips: Timing of Administration and Environmental Control Are Important

It's best to give the product at the same time every day. Administering it with morning and evening meals is effective. Avoid stressful environments for your dog and offer the supplement in a quiet space. Maintaining a consistent daily routine helps enhance the product's effectiveness. Additionally, if any adverse reactions occur after administration, consult your veterinarian immediately. To maximize the product's benefits, it's important to manage both the environment and your pet's habits.

Daily habits for managing adrenal tumors

Reviewed by a veterinarian

Dr. Tony — Punnawat Phongkittirak

Veterinarian

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.

Frequently Asked Questions

Can adrenal tumor management products serve as a treatment?

This product does not treat the tumor itself. The definitive treatment for adrenal tumors is surgical removal or medications prescribed by a veterinarian, such as trilostane or mitotane. There is no scientific evidence that supplements can restore adrenal function or shrink tumors. Please make all management decisions in consultation with your veterinarian.

How long should I use it before I start seeing results?

The effectiveness and duration of use for supplements are not standardized, and there is limited evidence to support their efficacy. Since adrenal tumors require veterinary diagnosis and treatment, please consult your veterinarian to determine whether and for how long to use the product.

Is it safe to take this medication alongside other drugs?

While most of our products can be used alongside other medications, please always consult your veterinarian first, as certain ingredients may interact with other drugs.

Can the symptoms return after stopping the product?

If your pet has a tumor, ongoing management is essential. Since symptom control depends on your veterinarian’s diagnosis and treatment plan, please consult your vet before deciding whether to continue or discontinue any products or care routines.

Can young puppies use it too?

Since most products are formulated for adult dogs, please consult your veterinarian before using them on puppies. Choose a product appropriate for your dog’s age and weight.

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References

[1] Liptak, J.M. et al. (2015) Veterinary Surgical Oncology, 2nd Ed. Wiley-Blackwell.

[2] Preziosi, R. et al. (1995) Veterinary Pathology, 32(4), 385–392.

[3] Martins, C. et al. (2008) Veterinary Clinical Pathology, 37(2), 188–195.