Excede Sterile Suspension / Ceftiofur Crystalline Free Acid Sterile Suspension) Veterinary Extended-Release Anti-Infective Therapeutics: The Definitive Guide to Bovine & Equine Pharmacology, Antimicrobial Kinetics, and Clinical Management

Managing bovine respiratory disease ($\text{BRD}$), acute interdigital necrobacillosis (foot rot), acute metritis, and equine lower respiratory tract infections or soft tissue abscesses in large animal practice requires an ultra-high-potency, extended-release cephalosporin antimicrobial that maintains therapeutic minimum inhibitory concentrations ($\text{MIC}$) for days following a single administration. When livestock or equines suffer from severe bacterial infections where conventional daily injections are stressful, labor-intensive, or clinically impractical, targeted long-acting parenteral antimicrobial intervention is essential to eradicate pulmonary pathogens, halt bacterial cell wall synthesis, and restore health without frequent handling.

Left unmanaged, severe respiratory and systemic bacterial infections lead to permanent lung consolidation, production losses, chronic morbidity, and mortality.

Relying solely on short-acting daily antibiotics frequently fails to maintain necessary sustained tissue levels or results in incomplete pathogen clearance due to missed dosing windows.

To provide targeted, extended-release antimicrobial defense backed by veterinary clinical standards, modern large animal medicine relies on gold-standard sustained-release cephalosporin suspensions. Excede Sterile Suspension ($200\ \text{mg/mL}$, $100\ \text{mL}$ Vial Format / Ceftiofur Crystalline Free Acid $\text{CCFA}$) is a premier, professional-grade long-acting parenteral anti-infective formulated to deliver prolonged therapeutic blood and tissue levels from a single or dual-injection protocol in cattle and horses.

Antimicrobial Pharmacology & Bacterial Inhibition Kinetics

Excede delivers a targeted biochemical mechanism engineered to disrupt bacterial cell wall synthesis and achieve prolonged bactericidal clearance:

          [Excede 200 mg/mL Suspension Administered Subcutaneously in Cattle or Horses]
                                              |
                   [Slow, Sustained Dissolution and Extended Systemic Release from Injection Site]
                                              |
               [Binding to Essential Penicillin-Binding Proteins (PBPs) in Bacterial Cell Wall]
                                              |
               -------------------------------------------------
              |                                                 |
     [INHIBITION OF PEPTIDOGLYCAN SYNTHESIS]    [DISRUPTION OF CELL WALL CROSS-LINKING]
   (Blocks Transpeptidase Enzyme Activity)      (Weakens Structural Integrity of Bacterial Wall)
              |                                                 |
              v                                                 v
     [OSMOTIC INSTABILITY & LYSIS]               [RAPID BACTERICIDAL CELL DEATH]
   (Causes Bacterial Cell Swelling and Bursting) (Erradicates Susceptible Respiratory Pathogens)
              |                                                 |
              v                                                 v
     [Resolution of Pneumonic Lesions]           [Eradication of Foot Rot & Equine Infections]
   (Clears Mannheimia, Pasteurella, & Histophilus)(Restores Normal Lung Function and Vitality)
              |                                                 |
               =========================> <=====================
                                              |
                                              v
                   [Complete Systemic Microbiological Cure and Extended Protection]
                                              |
                   [Sustained Pathogen Eradication, Reduced Animal Stress, & Peak Herd/Equine Vigor]

1. Mechanism of Action and Molecular Structure

Ceftiofur Crystalline Free Acid ($\text{CCFA}$) is a broad-spectrum third-generation cephalosporin antibiotic active against major Gram-positive and Gram-negative bacteria, including beta-lactamase-producing strains. It exerts its bactericidal effect by binding to essential penicillin-binding proteins ($\text{PBPs}$) located inside the bacterial cell wall, inhibiting peptidoglycan synthesis and causing osmotic lysis and cell death.

2. Pharmacokinetic Profile

• Extended-Release Microsuspension: Formulated as a specialized crystalline free acid suspension that dissolves slowly from the subcutaneous injection site, providing sustained therapeutic drug concentrations in plasma and infected tissues for up to 7 days in cattle and several days in horses.

• Targeted Tissue Penetration: Achieves high minimum inhibitory concentrations ($\text{MIC}$) directly within infected bovine lung tissue, bronchial fluids, and equine soft tissue foci.

Primary Clinical Indications

Excede $200\ \text{mg/mL}$ ($100\ \text{mL}$ Vial) is utilized across specialized bovine and equine veterinary clinical protocols for:

• Bovine Respiratory Disease ($\text{BRD}$ / Shipping Fever): Treatment and control of $\text{BRD}$ associated with Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni in beef and non-lactating dairy cattle.

• Bovine Foot Rot: Management of acute interdigital necrobacillosis caused by Fusobacterium necrophorum and Bacteroides melaninogenicus.

• Bovine Acute Metritis: Treatment of acute postpartum metritis within 10 days post-calving.

• Equine Lower Respiratory Tract Infections: Management of lower respiratory tract infections in horses caused by susceptible strains of Streptococcus equi subspecies zooepidemicus.

Recommended Administration and Dosing Protocols

To guarantee absolute sterility, exact dosage calculation, and safe sustained delivery, Excede must be shaken well before use and administered strictly via approved subcutaneous routes.

Dosing Reference Table

The table below outlines standard operational parameters for Excede $200\ \text{mg/mL}$ ($100\ \text{mL}$ Vial):

Clinical Safety, Precautions, and Storage

• Meat and Milk Withdrawal: Observe established mandatory withdrawal periods for meat and milk following treatment to ensure human food safety compliance. Not for use in female dairy cattle of breeding age.

• Anatomic Injection Site Compliance: In cattle, injections must be given strictly in the posterior aspect of the ear to prevent carcass trim loss and ensure proper extended-release kinetics.

• Storage Parameters: Store at controlled room temperature between 20°C and 25°C (68°F to 77°F), with excursions permitted between 15°C and 30°C (59°F and 86°F). Protect from freezing and shake well before each use.

Frequently Asked Questions (FAQ)

What is the active ingredient in Excede?

Each milliliter contains Ceftiofur Crystalline Free Acid ($\text{CCFA}$) equivalent to $200\ \text{mg}$ of Ceftiofur, a long-acting third-generation cephalosporin antimicrobial.

How does Excede provide extended-release therapy?

It is formulated as a specialized crystalline free acid suspension that dissolves slowly from the subcutaneous injection site, maintaining therapeutic blood and tissue levels for days from a single treatment.

Where must Excede be injected in cattle?

In cattle, Excede must be administered strictly in the posterior aspect of the ear, which ensures optimal drug absorption and protects valuable meat cuts from injection site blemishes.

Where can I buy genuine Excede for Cattle and Horses online?

You can safely source authentic, pharmaceutical-grade Excede Sterile Suspension ($200\ \text{mg/mL}$, $100\ \text{mL}$ Vial) online through Equines Vet Care. We store all specialized veterinary anti-infectives under rigorous climate-controlled conditions to guarantee absolute product freshness, safety, and full potency.

Secure Professional Sourcing from Equines Vet Care

At Equines Vet Care, we understand that managing bovine respiratory disease, equine infections, and extended-release anti-infective therapy require uncompromising product purity and strict quality control. Every unit of Excede Sterile Suspension ($200\ \text{mg/mL}$, $100\ \text{mL}$ Vial) is procured through authorized distribution networks, stored in our climate-controlled facility, and dispatched with precision.

Excede Sterile Suspension is an antibiotic indicated for the treatment of bovine respiratory disease (BRD), foot rot, and for the control of respiratory disease in cattle at high risk for developing BRD. Excede is also indicated for the treatment of lower respiratory tract infections in horses. Excede by Zoetis is the first and only FDA-approved antibiotic for horses that offers a full course of therapy in just two doses. Reduce the treatment time and reduce the stress of a sick animal.

Each ml of Excede Sterile Suspension contains the ceftiofur crystalline-free acid equivalent to 200 mg ceftiofur. The usual dosage for cattle is 1.5 ml per 100 lbs body weight, given by subcutaneous injection. Horses usually receive 2 doses, 4 days apart, at the rate of 1.5 ml per 100 lbs. of body weight, given by intramuscular (IM) injection. Administer per label instructions. Ready-to-use suspension. Shake well before using. Ceftiofur.