Marshmallow Leaf
Althaea officinalis
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.
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
SafeDuration: long term
Horses
SafeDuration: long term
Rabbits
SafeDuration: long term
Birds
SafeDuration: long term
Guinea Pigs
SafeDuration: long term
Dosing Guide
General guidance only — always consult your veterinarian.
| Species | Form | Dose | Frequency | Notes |
|---|---|---|---|---|
| Dogs | dried herb | 10-20 mg /lb | twice daily | Dry cough, kennel cough recovery; tea form most palatable. |
| Cats | glycerin tincture | 3-6 drops | twice daily | Chronic URI, post-herpesvirus cough. |
| Horses | dried herb | 20-40 grams | twice daily | Dusty-hay cough, mild respiratory support. |
| Rabbits | dried herb | 2-4 grams | once daily | Daily forage for sensitive respiratory or gut. |
Active Compounds
Compounds marked Cat Unsafe (phenols and many terpenes) cannot be metabolized by feline livers.
Quick Info
Plant Family
Malvaceae
Parts Used
leaf
Available Forms
dried herb, tea, glycerin tincture, poultice
Explore More Pet Resources
Find more herbs, check interactions, or review toxic plants for pets.