Pet Herb Library

69 detailed pet herb profiles with species-specific safety ratings, weight-based dosing, and administration guides.

Evidence:AllABCT

Showing 39 of 69 herbs

Astragalus

Astragalus membranaceus

BGood EvidenceFabaceae

An adaptogenic immune-modulating herb safe for long-term use. Used for chronic immune support, cancer adjunct therapy, and vitality in aging pets. Unlike echinacea, safe for extended use.

Boswellia

Boswellia serrata

AStrong EvidenceBurseraceae

Ayurvedic gum resin rich in boswellic acids that inhibit 5-lipoxygenase (5-LOX), delivering potent anti-inflammatory action for joints and gut without the COX-inhibition liabilities of NSAIDs. Exceptionally well tolerated.

Bupleurum

Bupleurum chinense

BGood EvidenceApiaceae

Core TCM veterinary herb; liver-mover and harmonizer in formulas like Xiao Yao San and Minor Bupleurum. Treats liver stagnation, hepatitis, and fever in integrative practice.

Calendula

Calendula officinalis

BGood EvidenceAsteraceae

The premier wound-healing herb for pets. Used primarily topically for cuts, hot spots, skin irritation, and ear infections. Anti-inflammatory, antimicrobial, and promotes tissue repair.

Cat's Claw

Uncaria tomentosa

BGood EvidenceRubiaceae

Peruvian inner bark vine with immunomodulating, anti-inflammatory, and antiviral properties; used in canine and equine arthritis, Lyme disease support, and chronic immune conditions.

Chamomile

Matricaria chamomilla

BGood EvidenceAsteraceae

One of the safest and most versatile herbs for pets. Mild sedative, digestive soother, and anti-inflammatory. Used as a calming tea, skin rinse, or added to food.

Cleavers

Galium aparine

BGood EvidenceRubiaceae

Premier lymphatic mover and gentle diuretic that drains congested lymph nodes and supports urinary flow. One of the safest and most reliable alteratives for acute swollen glands across virtually all species.

Comfrey Leaf

Symphytum officinale

BGood EvidenceBoraginaceae

Classic "knitbone" topical wound, bruise, and sprain herb rich in allantoin; used EXTERNALLY ONLY in modern veterinary herbalism due to pyrrolizidine alkaloid hepatotoxicity.

Corn Silk

Zea mays

BGood EvidencePoaceae

Gentle demulcent diuretic made from corn stigmas; soothes inflamed urinary tract lining and is safe for dogs, cats, horses, and small mammals with cystitis or bladder irritation.

Dandelion

Taraxacum officinale

BGood EvidenceAsteraceae

A gentle tonic for liver and kidney support. Root supports the liver; leaf acts as a natural diuretic rich in potassium. Safe for most species and excellent for older pets.

Dandelion Root

Taraxacum officinale

BGood EvidenceAsteraceae

Bitter cholagogue root that stimulates bile flow, supports hepatic detoxification, and aids digestion of fats. Distinct from leaf (diuretic) and flower (mildly hepatic); root is the premier liver and gallbladder tonic.

Devil's Claw

Harpagophytum procumbens

AStrong EvidencePedaliaceae

Southern African root with harpagoside anti-inflammatory action; a leading herbal choice for canine and equine arthritis, hip dysplasia, and chronic musculoskeletal pain.

Elecampane

Inula helenium

BGood EvidenceAsteraceae

Warming expectorant lung tonic with antimicrobial inulin-rich root; traditionally used in horses (hence "horse-heal") and dogs for chronic wet cough, bronchitis, and post-kennel-cough recovery.

Eleuthero

Eleutherococcus senticosus

BGood EvidenceAraliaceae

Classic Soviet-researched adaptogen used to enhance stamina, stress resilience, and recovery without the stimulating edge of Panax ginseng. Supports working dogs, performance horses, and convalescent animals of all species.

Fennel

Foeniculum vulgare

CLimited EvidenceApiaceae

A gentle carminative herb for gas, bloating, and appetite stimulation. Safe for dogs and often accepted readily due to its mild licorice-like flavor.

Flaxseed

Linum usitatissimum

BGood EvidenceLinaceae

Omega-3 rich seed (ALA), lignans, and soluble fiber supporting coat quality, skin health, and mild bowel regulation in dogs, cats, horses, and small mammals.

Goldenrod

Solidago virgaurea

BGood EvidenceAsteraceae

Anti-inflammatory kidney and urinary tract tonic; an excellent aquaretic for dogs, cats, and horses with chronic cystitis, UTIs, or early-stage kidney insufficiency.

Horsetail

Equisetum arvense

CLimited EvidenceEquisetaceae

Silica-rich ancient plant used for connective tissue support, urinary health, and coat/hoof quality; species selection critical due to toxic relative Equisetum palustre.

Lemon Balm

Melissa officinalis

BGood EvidenceLamiaceae

Gentle, lemon-scented nervine with notable antiviral activity against herpesviruses. Unique among the mints for tolerance across small exotic species including rabbits and birds when used in moderation.

Licorice Root

Glycyrrhiza glabra

BGood EvidenceFabaceae

An anti-inflammatory and adrenal support herb. Short-term use only due to potential for fluid retention and blood pressure elevation. Often used to enhance palatability of herbal blends.

Lion's Mane

Hericium erinaceus

BGood EvidenceHericiaceae

Neurotrophic medicinal mushroom that stimulates nerve growth factor (NGF) and supports cognition, peripheral nerve repair, and gut mucosa. Emerging use in senior cognitive decline and IBD protocols across species.

Marshmallow Leaf

Althaea officinalis

BGood EvidenceMalvaceae

Cooling, mucilaginous demulcent that coats and soothes dry respiratory and urinary tissues. Leaf is distinct from root in having stronger upper-respiratory affinity and gentler action for dry, irritated coughs.

Marshmallow Root

Althaea officinalis

BGood EvidenceMalvaceae

A soothing demulcent similar to slippery elm. Excellent for urinary tract support, GI inflammation, and respiratory irritation. Very safe for all species.

Milk Thistle

Silybum marianum

AStrong EvidenceAsteraceae

The go-to liver support herb for pets. One of the most evidence-backed herbs in veterinary medicine. Used after drug therapy, toxin exposure, or for ongoing liver health.

Mullein

Verbascum thapsus

CLimited EvidenceScrophulariaceae

A gentle respiratory herb used for coughs, bronchial issues, and ear infections (as flower-infused oil). Safe and soothing for the lungs.

Nettle

Urtica dioica

BGood EvidenceUrticaceae

A nutrient-rich herb with natural antihistamine properties. Excellent for allergy support, urinary health, and as a nutritional supplement. Rich in iron, calcium, and vitamins.

Olive Leaf

Olea europaea

BGood EvidenceOleaceae

Broad-spectrum antimicrobial leaf rich in oleuropein, used for immune support, chronic low-grade infection, and mild blood pressure elevation in companion animals (Animal Essentials Super Immune ingredient).

Passionflower

Passiflora incarnata

BGood EvidencePassifloraceae

A gentle calming herb, milder than valerian. Good for dogs with mild anxiety, restlessness, or sleep difficulties. Often combined with chamomile for a calming blend.

Plantain

Plantago major

BGood EvidencePlantaginaceae

Gentle demulcent and vulnerary herb that draws toxins from bites, stings, and wounds while soothing inflamed mucous membranes. A safe, ubiquitous lawn weed used across all species for skin and gut healing.

Psyllium

Plantago ovata

AStrong EvidencePlantaginaceae

Mucilaginous seed husk providing bulk-forming fiber; flagship herb for equine sand colic prevention and bowel regulation in dogs, cats, and small mammals. Always with water.

Raspberry Leaf

Rubus idaeus

BGood EvidenceRosaceae

Classic female reproductive tonic that tones uterine smooth muscle and prepares the dam for easier whelping, kindling, or foaling. Astringent tannins also support GI health and mild diarrhea.

Red Clover

Trifolium pratense

CLimited EvidenceFabaceae

Classic lymphatic and alterative herb rich in isoflavones that supports skin, glands, and gentle detoxification. Mild phytoestrogen activity makes it a key adjunct in chronic skin and lymph nodular conditions.

Self Heal

Prunella vulgaris

CLimited EvidenceLamiaceae

Gentle antiviral, anti-inflammatory, and wound-healing mint-family herb used traditionally as "heal-all" for oral sores, minor wounds, herpesvirus flares, and mild lymphatic swelling.

Skullcap

Scutellaria lateriflora

CLimited EvidenceLamiaceae

A nervine herb for anxiety and nervous tension. Calmer acting than valerian with less risk of paradoxical excitability. Good for dogs with chronic stress or nervousness.

Slippery Elm

Ulmus rubra

BGood EvidenceUlmaceae

A soothing demulcent that coats and protects the GI tract. One of the safest herbs for all pet species. First-line herbal support for diarrhea, vomiting, and GI inflammation.

Turkey Tail

Trametes versicolor

AStrong EvidencePolyporaceae

Highly researched medicinal mushroom rich in PSP and PSK polysaccharopeptides. Penn Vet hemangiosarcoma study demonstrated extended survival in canine patients using high-dose polysaccharopeptide extract.

Valerian

Valeriana officinalis

BGood EvidenceCaprifoliaceae

A well-known calming herb used for anxiety, noise phobia, and restlessness in dogs and horses. May cause paradoxical excitability in some animals. Cats are attracted to it like catnip.

Witch Hazel

Hamamelis virginiana

BGood EvidenceHamamelidaceae

Astringent topical bark and leaf used as a hydrosol/distillate for insect bites, hot spots, minor cuts, inflamed ears, and anal gland irritation in companion animals and horses.

Yellow Dock

Rumex crispus

CLimited EvidencePolygonaceae

Gentle laxative and liver alterative rich in iron and anthraquinones; supports anemia, sluggish bowels, and skin conditions. Oxalate content limits use in some species.