Chaste Tree Berry
Vitex agnus-castus
Dopaminergic berry that modulates pituitary function; flagship herb for equine PPID (Cushing's disease) and hormonal regulation in dogs and horses with strong clinical evidence.
Consult Your Veterinarian First
This information is for educational purposes only. Always consult a qualified veterinarian before using herbal remedies for your pet — especially if they are on medication, pregnant, or have existing health conditions.
Species Safety
An herb safe for one species may be toxic to another.
Dogs
SafeDuration: long term
Cats
Use CautionDuration: moderate term
Horses
SafeDuration: long term
Rabbits
No DataDuration: short term
Birds
No DataDuration: short term
Guinea Pigs
No DataDuration: short term
Dosing Guide
General guidance only — always consult your veterinarian.
| Species | Form | Dose | Frequency | Notes |
|---|---|---|---|---|
| Dogs | glycerin tincture | 0.25-0.5 ml /kg | twice daily | Per 10kg body weight; best given long-term for hormonal conditions. |
| Horses | dried herb | 15-30 grams | once daily | For PPID support; typically top-dressed on feed for 450kg horse. |
| Cats | glycerin tincture | 0.1-0.2 ml /kg | twice daily | Per 5kg body weight; start low and monitor for behavioral changes. |
Active Compounds
Compounds marked Cat Unsafe (phenols and many terpenes) cannot be metabolized by feline livers.
Safety Warnings
Surgery Warning
Do not use in pregnant, nursing, or breeding animals. Monitor equines on pergolide concurrently.
Essential Oil Form
Research-supported for equine PPID; clinical trials show cortisol and ACTH improvements.
Quick Info
Plant Family
Lamiaceae
Parts Used
berry, fruit
Available Forms
dried herb, glycerin tincture, alcohol tincture, capsule
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