Check the listing for details. Select the Best Equi-Tussin Cough Syrup. Condition: New. Listed at 16.99 USD. Select the Best Equi-Tussin Cough Syrup Equi-Tussin Cough Syrup from Select the Best makes your horse more comfortable with this expectorant and decongestant cough formula. Select Equi-Tussin Cough Syrup for horses supports healthy respiratory function. Equi-Tussin contains aromatic oils to help expand airways. The iodine salts and ammonium chloride add to the therapeutic formula that reduces the amount of coughing while making coughs more productive. Expectorant and decongestant Aromatic oils Liquid molasses syrup 1 quart (16-Day Supply) Made in USA Select the Best Equi-Tussin Cough Syrup has a molasses syrup base. Aromatic oils include eucalyptus, pine, and peppermint. When dry conditions, dusty wind, or minor illnesses appear, be ready with Equi-Tussin Cough Syrup to soothe your horse's cough.