EquiSul-SDT Oral Suspension for Horses

Equine Respiratory Infection Treatment Oral Suspension

Product Description

EquiSul-SDT Oral Suspension is a vet-prescribed antibiotic designed specifically for horses. It helps treat bacterial infections in the lower airways. This oral suspension combines sulfadiazine and trimethoprim, two antibiotics that work together to stop bacterial growth and clear the infection. Their combined action helps horses recover effectively while keeping the right levels of medicine when given as instructed by a vet.

Benefits

• Dual Antibiotic Formula: Combines sulfadiazine and trimethoprim to block steps in bacterial folic acid synthesis, creating a synergistic bactericidal effect.
• Targets Respiratory Infections: Specifically formulated for treating lower respiratory tract infections in horses caused by Streptococcus equi subsp. zooepidemicus.
• Broad Spectrum Action: Potentiated sulfonamide antimicrobial provides wide antibacterial coverage against susceptible equine pathogens responsible for respiratory disease.
• Oral Liquid Administration: Suspension form allows convenient dosing and easier administration compared with solid antibiotic formulations.
• Maintains Therapeutic Levels: Twice-daily dosing helps maintain effective antimicrobial concentrations to support a consistent treatment response.

Ingredients

Composition Table

Other Ingredients, if available:

Aqueous suspension base.

How to Use

Recommended-Dosage Chart

Dosage & Administration Instructions

• Shake Before Use: Shake the suspension well before each use to evenly mix the active ingredients.
• Weight-Based Dose: Give 24 mg of combined ingredients for each kilogram of body weight, which is 2.7 mL for every 100 lb.
• Twice Daily Treatment: Give the prescribed dose by mouth two times a day to keep effective antimicrobial levels during treatment.
• Ten-Day Course: Continue treatment for the full recommended ten-day duration unless your veterinarian advises otherwise.
• Oral Syringe Use: Draw the required volume using an oral dosing syringe and administer carefully into the horse’s mouth.
• Veterinary Prescription Required: This medication is restricted for use by or on the order of a licensed veterinarian.

Disclaimer: This dosage information is provided by the manufacturer. Always consult your veterinarian before administering or adjusting any supplement for your pet.

Additional Information

Precautions

• Allergy Risk: Do not administer to horses with known hypersensitivity to sulfadiazine, sulfonamides, or trimethoprim.
• Pregnancy Caution: Safety has not been fully evaluated in breeding, pregnant, or lactating horses and should only be used when the benefits outweigh the risks.
• Young Horse Safety: The safety of this medication has not been established in horses younger than one year.
• Stress-Related Diarrhea: Antimicrobial administration in stressed horses may lead to acute diarrhea that can become severe or fatal.
• Liver Function Care: Use cautiously in horses with impaired liver function because sulfonamides may rarely cause serious hepatic injury.

Possible Side Effects

• Loose Stool: Loose stool or mild changes in the gastrointestinal system are often reported during treatment with this antimicrobial combination.
• Diarrhea Episodes: Some horses may experience diarrhea during treatment, which usually goes away after stopping the medication.
• Colic Signs: There have been rare cases of mild colic reported in horses treated during clinical studies.
• Behavior Changes: Neurologic signs, such as changes in gait or behavior, may happen but typically return to normal after stopping treatment.

Storage Information

• Room Temperature Storage: Store the product in the upright position at temperatures between 59°F and 86°F (15°C to 30°C).
• Avoid Freezing: Protect the suspension from freezing to maintain product stability and effectiveness.
• Short Heat Exposure: Brief temperature exposure up to 104°F (40°C) is permitted without affecting product integrity.
• Discard After Opening: Bottles of 280 mL and 560 mL should be discarded 60 days after the bottle seal is removed.

Shipping & Return

We offer ground, express, priority, and international delivery; see our shipping policy for details.

For return instructions or product concerns, please refer to our detailed refund policy. 

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.  

Frequently Asked Questions

Q1: What is EquiSul-SDT Oral Suspension used for in horses?

Ans: EquiSul-SDT Oral Suspension is used to treat lower respiratory tract infections in horses that are caused by certain strains of Streptococcus equi subsp. zooepidemicus. This medication combines sulfadiazine and trimethoprim, working together to block the synthesis of bacterial folic acid and effectively eliminate the bacteria responsible for the infection.

Q2: How does EquiSul-SDT work to treat bacterial infections in horses?

Ans: EquiSul-SDT contains sulfadiazine and trimethoprim, two antimicrobials that block sequential steps in bacterial nucleic acid synthesis. This dual mechanism enhances antibacterial activity, lowering the minimum inhibitory concentration and converting bacteriostatic effects into bactericidal action against susceptible pathogens.

Q3: What is the recommended dosage of EquiSul-SDT for horses?

Ans: The manufacturer recommends administering EquiSul-SDT orally at 24 mg of combined active ingredients per kilogram of body weight twice daily for ten days. This equals approximately 2.7 mL per 100 lb of body weight, following veterinary prescription and guidance.

Q4: Can EquiSul-SDT be given with food?

Ans: Studies suggest that feeding doesn’t have a major impact on how sulfadiazine is absorbed. However, when it comes to trimethoprim, its absorption might drop a bit if taken with food. Because of this, vets often suggest dosing strategies that help maintain consistent therapeutic levels of the medication throughout treatment.

Q5: Is EquiSul-SDT safe for all horses?

Ans: EquiSul-SDT should not be used in horses with known allergies to sulfadiazine, sulfonamides, or trimethoprim. Safety has not been established in horses younger than one year or in breeding, pregnant, or lactating horses unless the benefits outweigh potential risks.