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ThunderBites Guides by Dog Breed

Every breed has different anxiety patterns and dosing needs. Select your breed for a complete, vet-reviewed ThunderBites guide.

ThunderBites by breed: why breed changes the plan

Breed matters more than people expect with calming chews, for three reasons. Size sets the dose — a Chihuahua takes a single chew while a German Shepherd sits at the top of the range. Some breeds carry specific medical cautions: herding breeds like Border Collies and Australian Shepherds often carry the MDR1 gene mutation, flat-faced breeds like French Bulldogs and Shih Tzus overheat when they stress-pant, and long-backed Dachshunds can strain their spine during a panic.

And temperament shapes the problem — a bored, high-drive working dog needs exercise and enrichment as much as a chew. The breed guides below give the weight-based dose, the medical caveat that applies to that breed, and how to handle the five common anxiety triggers for it. If your exact breed isn't listed, dose by weight and apply the caution that fits your dog's body type, and check with your vet if they're MDR1-positive, brachycephalic, pregnant, or on other medication.

🐕

German Shepherd

Protective, noise-sensitive working dogs. High rates of thunderstorm phobia.

60–90 lbs 3 chews/day
View 5 guides →
🐾

French Bulldog

Separation anxiety specialists. Probiotic formula especially beneficial.

20–28 lbs 1 chew/day
View 5 guides →
🐕

Australian Shepherd

Energy-driven anxiety. Needs exercise alongside supplementation.

40–65 lbs 2 chews/day
View 5 guides →
🌭

Dachshund

Vocal, stubborn. Separation anxiety and howling when alone.

8–32 lbs 1 chew/day
View 5 guides →
🐩

Poodle

Sensitive overthinkers. Dose varies widely by size (Toy to Standard).

4–70 lbs 1–3 chews/day
View 5 guides →
🐕

Border Collie

Highest noise phobia rates of any breed. MDR1 gene note.

30–55 lbs 2 chews/day
View 5 guides →
🐶

Beagle

Pack-driven howling anxiety. Excellent palatability — rarely refuses.

20–30 lbs 1 chew/day
View 5 guides →
🐕

Shih Tzu

Velcro dog. Extreme owner-dependence and separation sensitivity.

9–16 lbs 1 chew/day
View 5 guides →

Don’t see your breed? All guides use the same weight-based dosing table.

View the complete buying guide →

Breed-specific calming guides

See dosing, timing, and breed-specific anxiety patterns for the most common dog breeds.

Australian Shepherd lying calmly on a beige rug
Australian Shepherd
Beagle sleeping peacefully on a couch
Beagle
Border Collie resting on hardwood floor
Border Collie
Dachshund curled up on a knitted blanket
Dachshund
French Bulldog on a bedroom bed
French Bulldog
German Shepherd sleeping on living room rug
German Shepherd
Standard Poodle on a sunlit rug
Poodle
Shih Tzu napping on a cushion
Shih Tzu

How we compiled this guide: guidance is based on manufacturer labels and current veterinary consensus (Fear Free, AVSAB). This page contains affiliate links, and as an Amazon Associate we earn from qualifying purchases. Reviewed by Dr. Sarah Mills, DVM. Last verified July 1, 2026.