Expectorants for Horses

Equi-Spectorant (formerly Tri-Tussin) is an expectorant. It facilitates the clearing of mucus from the respiratory tract. Available in sweetened powder form, Equi-Spectorant is mixed with water and administered with an oral syringe, or it may be added to feed.

Equi-Spectorant helps clear mucus out of the lungs, bronchi, and trachea in horses and ponies. It is an easily administered sweet, palatable powder that horses readily accept directly or mixed in with feed.

Benefits of Equi-Spectorant:

  • Thins mucus in the respiratory tract during illness for easily expulsion with coughing
  • Helps speed recovery from a cough
  • Palatable powder horses and ponies enjoy
  • Easily dosed and easy to use by mixing with feed or by mixing with water and administering via an oral syringe
  • Well tolerated
  • Available over the counter

Read all instructions and warnings before use.

Use as advised by your veterinarian.


  1. Administer a total daily dose of 3 mg per 2.2 lbs. of body weight.
  2. Give adult horses 1 oz twice per day. Consult your veterinarian about usage in foals and ponies.
  3. Mix powder with feed or mix it with water and administer via an oral syringe.
  4. Treat for 3 to 4 days, or for the duration recommended by your veterinarian.

Frequency of Use:

Typical usage is twice daily.


Keep out of reach of children and animals.

Store Equi-Spectorant in its original container, tightly sealed. Keep in a cool, dry place.

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.

Guaifenesin USP, the active ingredient in Equi-Spectorant, is an expectorant. Unlike a cough suppressant, which inhibits the cough reflex, an expectorant thins mucus in the airway so it is more easily coughed up.

Equi-Spectorant Active Ingredients (per oz): Guaifenesin USP 2 gm (7% w/w)

Equi-Spectorant Inactive Ingredients: sucrose, potassium iodide, ammonium chloride, artificial coloring and flavoring


Keep Equi-Spectorant out of reach of children and animals. Do not use or store in or near open flame or heat.

Equi-Spectorant is only intended for use in horses and ponies. Do not administer to other species. Not for human ingestion.

CAUTION: Not for use in lactating mares.

Individual sensitivities may result from administration. Consult your veterinarian about any adverse reactions.

Do not combine Equi-Spectorant with another drug or supplement for cough relief unless expressly instructed to do so by your veterinarian. Ask your veterinarian before concurrently administering any other medications or supplements during therapy with Equi-Spectorant.

Warranty and Manufacturer Information:

Manufactured by: Neogen Corporation, Lexington, KY 40511

(859) 254-1221


Distributed by: MWI, Meridian, ID 83680

(888) 694-8381



NAC No.: 13150960

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