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Nuflor (Florfenicol) Injectable Solution for Cattle

Nuflor (Florfenicol) Injectable Solution for Cattle is an antibiotic indicated for the treatment of bovine respiratory disease (BRD) and foot rot, and for the control of respiratory disease in cattle at high risk for developing BRD. Each ml of Nuflor Injectable Solution contains 300 mg florfenicol. For treatment of BRD or foot rot, the recommended dosage is 3 ml per 100 lbs body weight, given by IM injection. A second dose should be given 48 hours later. Alternatively, Nuflor can be administered once by SQ injection of 6 ml per 100 lbs. For control of respiratory disease in cattle at high risk for BRD, administer 6 ml per 100 lbs, given SQ in the neck. Do not administer more than 10 ml per injection site. For use in beef and non-lactating dairy cattle only. Not for use in female dairy cattle 20 months of age or older, or in calves to be processed for veal. Florfenicol.

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Description, Features & Compatibility

Buy Nuflor Solution 100ml Online: The Definitive Veterinary Guide to Florfenicol Ribosomal Inhibition Kinetics, Bovine Respiratory Disease Treatment, Metaphylactic Control, and Livestock Health

Managing acute respiratory infections, bovine respiratory disease (BRD) complexes, shipping fever, and interdigital phlegmon (foot rot) in beef and non-lactating dairy cattle requires a broad-spectrum, high-potency synthetic antimicrobial. When cattle experience high-stress feedlot arrival, transportation trauma, or abrupt weather shifts, bacterial pathogens multiply rapidly within pulmonary tissues, causing severe consolidation, fever, and systemic distress.

Left unmanaged, respiratory complexes and acute bacterial outbreaks spread rapidly through livestock herds, resulting in high morbidity, permanent lung damage, reduced weight gains, and heavy economic losses.

Relying on outdated, bacteriostatic antibiotics that only slow bacterial growth is often insufficient during aggressive respiratory epidemics.

To provide powerful, sustained bactericidal action and deep tissue penetration across pulmonary and systemic sites, veterinarians and professional livestock producers rely on gold-standard florfenicol solutions. Nuflor Solution (100ml) (manufactured by MSD Animal Health) is a premier, professional-grade broad-spectrum antimicrobial formulation powered by Florfenicol at a robust concentration of $300\ \text{mg/mL}$. Packaged in sterile multi-dose glass vials, Nuflor delivers targeted, long-acting antibacterial potency engineered specifically for cattle health management.

Florfenicol Pharmacology & Antimicrobial Kinetics

Nuflor delivers a targeted biochemical mechanism engineered to inhibit bacterial protein synthesis while maintaining prolonged therapeutic concentrations:

                  [Nuflor 300mg/mL Solution Administered (IM or SC)]
                                             |
                  [Rapid Systemic Absorption into Blood Plasma Pools]
                                            |
               [Binding to the 50S Ribosomal Subunit of Pathogenic Bacteria]
                                            |
               -------------------------------------------------
              |                                                 |
     [BLOCKS PEPTIDYL TRANSFERASE]               [SUSTAINED TISSUE CONCENTRATIONS]
   (Inhibits Bacterial Protein Synthesis)       (Maintains Deep Pulmonary & Nasal Penetration)
              |                                                 |
              v                                                 v
   [Stops Bacterial Elongation & Growth]        (Neutralizes Mannheimia, Pasteurella, & Histophilus)
   (Bacteriostatic / Bactericidal Action)       (Rapid Resolution of Consolidation & Fever)
              |                                                 |
              v                                                 v
   [Allows Host Immune Clearance]               [Prevents Relapse with Prolonged Activity]
              |                                                 |
               =========================> <=====================
                                            |
                                            v
                   [Complete Eradication of Target Livestock Pathogens]
                                            |
                   [Rapid Restoration of Herd Vigor, Respiratory Health, & Productivity]

1. Inhibition of Bacterial Protein Synthesis (50S Ribosomal Binding)

Florfenicol ($300\ \text{mg/mL}$) is a synthetic, broad-spectrum fluorinated derivative of chloramphenicol. It exerts its antimicrobial action by binding to the $50\text{S}$ ribosomal subunit of susceptible bacteria, inhibiting the enzyme peptidyl transferase and preventing amino acid chain elongation. This halts bacterial protein synthesis and stops cellular replication.

2. Sustained-Action Pharmacokinetics and Tissue Diffusion

  • Prolonged Systemic Persistence: Designed to maintain effective therapeutic concentrations in blood plasma and target tissues for extended periods following intramuscular or subcutaneous administration.

  • Targeted Pulmonary and Soft-Tissue Penetration: Diffuses rapidly and extensively into lung parenchyma, bronchial secretions, and ocular tissues, successfully neutralizing major bovine respiratory pathogens including Mannheimia haemolytica, Pasteurella multocida, Histophilus somni, and Fusobacterium necrophorum.

Primary Clinical & Livestock Health Indications

Nuflor Solution 100ml is an essential therapeutic tool across beef ranches, feedlots, and non-lactating dairy operations:

  • Bovine Respiratory Disease (BRD / Shipping Fever): Treatment of respiratory infections associated with Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni.

  • BRD Metaphylaxis (High-Risk Herds): Control of respiratory disease outbreaks in groups of beef and non-lactating dairy cattle experiencing high-stress environmental transit.

  • Acute Foot Rot (Interdigital Necrobacillosis): Rapidly resolves acute foot rot and associated lameness caused by Fusobacterium necrophorum and Bacteroides melaninogenicus.

Recommended Administration and Dosing Protocols

To guarantee safety, proper bioavailability, and sustained therapeutic blood levels, Nuflor must be administered strictly according to approved route and weight guidelines.

1.Confirm Administration Route:Route Selection.

Select the preferred administration route for cattle:

  • Intramuscular (IM): Administered in the neck muscle at $20\ \text{mg/kg}$ ($1\ \text{mL}$ per $33\ \text{lbs}$ / $3\ \text{mL}$ per $100\ \text{lbs}$), repeated in 48 hours.

  • Subcutaneous (SQ): Administered as a single high-dose treatment at $40\ \text{mg/kg}$ ($2\ \text{mL}$ per $33\ \text{lbs}$ / $6\ \text{mL}$ per $100\ \text{lbs}$) for sustained coverage.

2.Calculate Precise Body Weight Dose:Dosage Calculation.

Calculate volume strictly by body weight. For the SQ single-dose regimen, measure $6\ \text{mL}$ for every $100\ \text{lbs}$ of body weight.

3.Observe Site Volume Limits:Injection Limits.

To ensure proper absorption and tissue safety, do not inject more than $10\ \text{mL}$ per injection site. Divide larger total doses across multiple sites in the neck only.

4.Use Proper Needle Gauge:Needle Selection.

Use sterile needles appropriate for oil-based viscous solutions (typically 16-gauge).

Buy Nuflor 100ml (Florfenicol) Injectable Solution for Cattle Online

Dosing Reference Table

The table below outlines standard administration guidelines for Nuflor Solution ($300\ \text{mg/mL}$):

Regimen ScheduleDosage Rate per PoundVolume per 100 lbsApproved RouteAdministration Frequency
Intramuscular (IM) Regimen$9.0\ \text{mg/lb}$ ($20\ \text{mg/kg}$)$3.0\ \text{mL}$ per $100\ \text{lbs}$Intramuscular (IM) in NeckFirst injection, repeated 48 hours later
Subcutaneous (SQ) Single Dose$18.0\ \text{mg/lb}$ ($40\ \text{mg/kg}$)$6.0\ \text{mL}$ per $100\ \text{lbs}$Subcutaneous (SQ) in NeckSingle-dose treatment (no second injection)

Clinical Safety, Restrictions, and Storage

  • Strictly Non-Lactating Cattle Only: Do not use in female dairy cattle 20 months of age or older or in calves to be processed for veal. Use in lactating dairy cattle may cause drug residues in milk. Approved strictly for beef cattle and non-lactating dairy stock.

  • Meat Withdrawal Periods: Always adhere strictly to regional regulatory withdrawal windows prior to marketing animal products for human consumption. Note: Cattle treated via the IM regimen carry a 30-day meat withdrawal, while cattle treated via the single SQ high-dose regimen carry a 38- to 44-day meat withdrawal depending on local regulatory guidelines.

  • Storage Parameters: Store unopened 100ml multi-dose glass vials at controlled room temperature between 2°C and 30°C (36°F to 86°F). Protect from light. Puncture the rubber stopper a maximum of 3 times for the 100ml presentation and use within 30 days of first puncture.

Frequently Asked Questions (FAQ)

What is the active ingredient in Nuflor Solution 100ml?

Nuflor contains Florfenicol at a concentration of $300\ \text{mg/mL}$, functioning as a synthetic broad-spectrum antibacterial agent.

Can Nuflor be used in lactating dairy cows?

No. Nuflor is strictly contraindicated in female dairy cattle 20 months of age or older and lactating dairy cows. It is approved exclusively for beef cattle and non-lactating dairy stock.

What is the difference between the IM and SQ dosing regimens for Nuflor?

When given Intramuscularly (IM), the dose is $20\ \text{mg/kg}$ ($3\ \text{mL}$ per $100\ \text{lbs}$) and must be repeated 48 hours later. When given Subcutaneously (SQ), it is administered as a single higher dose of $40\ \text{mg/kg}$ ($6\ \text{mL}$ per $100\ \text{lbs}$) that provides complete therapeutic coverage without a second injection.

Where can I buy genuine Nuflor Solution 100ml online?

You can safely purchase authentic, factory-sealed Nuflor Solution 100ml online through Equines Vet Care. We manage and store all veterinary pharmaceutical inventory under strict environmental controls to guarantee absolute product freshness, safety, and full potency.

Secure Premium Sourcing from Equines Vet Care

At Equines Vet Care, we understand that managing respiratory outbreaks, shipping fever, and foot rot in cattle requires absolute product reliability. Every 100ml vial of Nuflor Solution is sourced through authorized veterinary distribution networks, stored in our climate-controlled warehouse, and shipped securely to ensure complete product quality.

BRD Treatment – Nuflor Injectable Solution is indicated for treatment of bovine respiratory disease (BRD), associated with Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni (Haemophilus somnus).

BRD Control – Nuflor Injectable Solution is also indicated for the control of respiratory disease in cattle at high risk of developing BRD associated with Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni (Haemophilus somnus).

Foot Rot Treatment – Nuflor Injectable Solution is indicated for the treatment of bovine interdigital phlegmon (foot rot, acute interdigital necrobacillosis, infectious pododermatitis) associated with Fusobacterium necrophorum and Bacteroides melaninogenicus.

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