Dogster is reader-supported. When you buy via links on our site, we may earn a commission at no cost to you. Learn more.

Ask the Vet

Astragalus for Dogs: Usage, Benefits & Verdict (Vet Answer)

Dr. Marti Dudley DVM (Veterinarian)
By Dr. Marti Dudley DVM (Veterinarian) · Written by Dr. Marti DudleyVet Approved
Dr. Marti Dudley
Reviewed & Fact-Checked byDr. Marti DudleyDVM (Veterinarian)
Dr. Marti Dudley is a small animal veterinarian with a strong interest in preventative medicine and pet parent education. She enjoys being a resource for pet owners as she believes that having a team approach leads to the best possible care of pets. Dr. Dudley enjoys writing and has been able to use this skill as another avenue to educate pet owners outside of the traditional office setting.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on June 17, 2026
Share
Astragalus membranaceus growing in the wild

Astragalus (Astragalus membranaceus) is a flowering plant that has been used in traditional Chinese medicine for many years. Common uses in human medicine include treatment against hay fever, kidney disease, and many other ailments. In veterinary patients, astragalus is mostly used for its immune support. So, you might think that it would be beneficial to your dog as well. But is that true? Let’s dive in.

divider dog faces oct 2024

What Is Astragalus?

Astragalus is a plant that has medicinal benefits. Astragalus belongs to the Fabaceae family of plants. It is important to note that there are several different types of Astragalus. However, Astragalus membranaceus is the variety found in supplements.

Astragalus has been used for years in traditional Chinese medicine. The root is the portion of the plant that is most typically utilized for its medicinal purposes. In addition to being an immune support, astragalus is also an adaptogen. An adaptogen is a plant that helps a being respond to stress. Flavonoids and saponins also offer antioxidant and anti-inflammatory benefits. A study published in 2010 reported that in a study that involved 100 dogs, immune-suppressed dogs experienced an increase in immunity levels when supplemented with astragalus at 200mg/kg.1

Image Credit: luchschenF, Shutterstock

How Is Astragalus Given?

Astragalus is given orally but is available in different forms. Astragalus can be available as a tincture, capsule, tablet, or tea. The dosage will vary depending on the form given. This supplement is given once daily.

What Happens if You Miss a Dose?

If a dose is missed, it can be given when it is remembered, unless it is close to the time the next dose is due. Do not double up on doses. If you’re still unsure, make sure to reach out to a vet.

If you have a question about your dog's health or behavior, why not Ask a Vet for free? Our veterinary team answers reader questions and provides trusted advice to help you better understand your dog.

Dogster ad with veterinarian and dog offering free expert advice

Potential Side Effects of Astragalus

Extensive research regarding negative side effects in veterinary species is not available. Additionally, safe use in pregnant or lactating animals has not been established. Some patients with certain medical conditions may not be good candidates to receive this supplement.

In humans, when given at correct doses, astragalus doesn’t appear to have serious side effects. Mount Sinai does mention that this herb could have undesirable interactions when used with other herbs. Furthermore, they mention that humans with autoimmune diseases should take the time to discuss astragalus with their medical providers prior to initiating, as it could stimulate their immune systems.

Image Credit: Przemek Iciak, Shutterstock
divider dog faces oct 2024

Frequently Asked Questions (FAQ)

Is Astragalus Available Over the Counter?

Yes, astragalus is available over the counter and doesn’t require a prescription. However, before initiating astragalus, your pet’s veterinarian should be consulted.

Is Astragalus Safe to Administer to Patients With Cancer?

Due to its ability to improve immunosuppression, astragalus is not always beneficial in patients with cancer. Your veterinarian should be consulted prior to the use of astragalus.

Is Astragalus Potentially Beneficial to Patients With Arthritis?

Yes, astragalus could potentially benefit patients with arthritis due to its anti-inflammatory properties.

divider dog faces oct 2024

Conclusion

Astragalus membranaceus is a plant that has been used for thousands of years in Chinese herbal medicine. Although astragalus has several potential uses, initiating this supplement in your dog should not be done without consulting first with your veterinarian. Due to its immune-support properties, astragalus may not be recommended in animals with autoimmune diseases. If astragalus is initiated in your pet and adverse effects are noted, veterinary care should be pursued.

Sources

Featured Image Credit: Eziu, Shutterstock

Want content like this delivered to you?

News, insights, expert advice, and everything dog

Dr. Marti Dudley DVM (Veterinarian)
Authored by

Dr. Marti Dudley DVM (Veterinarian)

Prednisone for Dogs: Our Vet Explains the Uses, Doses & Side Effects

Prednisone for Dogs: Our Vet Explains the Uses, Doses & Side Effects

Prednisone is common in both human and veterinary medicine. It’s useful for various ailments, from itchy skin to cancer treatment. While it may work wonders fo…

Dr. Chyrle Bonk
By Dr. Chyrle Bonk · 3 days ago
Spirulina for Dogs: Vet-Reviewed Benefits, Uses & Tips

Spirulina for Dogs: Vet-Reviewed Benefits, Uses & Tips

Everyone has heard of the benefits of plant-based foods, and this way of eating has become more popular among people in the last two decades. Spirulina is a su…

Keri-Beth Clur
By Keri-Beth Clur · 2 weeks ago
Acupuncture for Dogs: Pros, Cons, Benefits & Risks (Vet Answer)

Acupuncture for Dogs: Pros, Cons, Benefits & Risks (Vet Answer)

The therapeutic benefits of acupuncture are becoming more widely recognized and incorporated into mainstream medical treatment plans, a move that many would sa…

Dr. Karyn Kanowski
By Dr. Karyn Kanowski · 3 days ago
Ask Dr. Paola- Dog Not Eating, Astragalus & Dog Passed Away After Seeing a Vet (June 16, 2025)

Ask Dr. Paola- Dog Not Eating, Astragalus & Dog Passed Away After Seeing a Vet (June 16, 2025)

Welcome to our "Ask Dr. Paola" series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our readers better understand the…

Dr. Paola Cuevas
By Dr. Paola Cuevas · 2 weeks ago
Celebration Ends With Dog Shot Dead By Police
July 2, 2026

Warning: The following article discusses the traumatic death of a beloved dog and includes descriptions of grief and loss that some readers may find distressin…

Dr. Karyn Kanowski
By Dr. Karyn Kanowski
Dogster’s Weekly Photo Contest Winners: The Head Tilt (June 22, 2026)
July 2, 2026

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See all the winners here

Radim Chudej
By Radim Chudej
Why Environmental Awareness Matters for Dog Wellness
July 2, 2026

When pet parents think about supporting their dog's health, nutrition, exercise, and regular veterinary care often come to mind first. Increasingly, however, r…

Nicole Cosgrove
By Nicole Cosgrove
Human Foods That Are Surprisingly Good for Dogs (And Some That Aren’t)
July 2, 2026

We all know what it’s like to share a room with a dog at mealtimes. The puppy dog eyes, twitching nose, and trickle of drool as whatever is on your plate becom…

Dan Seymour
By Dan Seymour

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.

You may opt-out at any time. View our Privacy Policy for more information.

The Dogster app on a phone