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Florvio 2.3 Percent

Novartis Animal Health US, Inc.

Florvio




FULL PRESCRIBING INFORMATION

FLORVIO TM
(FLORFENICOL) An Antimicrobial
2.3% Concentrate Solution

For Oral Use in Swine Drinking Water Only .

CAUTION: Federal (USA) law restricts this drug to use by or on the order of a licensed veterinarian.

ANADA #200-519, Approved by FDA.

Novartis Animal Health US, Inc.
3200 Northline Avenue., Suite 300
Greensboro, NC 27408 U.S.A.

FlorvioTM is a trademark of Novartis AG, Basel
Copyright © 2012, Novartis Animal Health US, Inc.
Greensboro, NC 27408.

All rights reserved.
Rev. date: 03/13
Product # 613117                                           614591 USA 311496

Florfenicol (Oral Concentrate) is a synthetic broad-spectrum antibiotic. Each milliliter (mL) of FlorvioTM 2.3% Concentrate Solution contains 23 mg florfenicol.

FlorvioTM 2.3% Concentrate Solution is indicated for the treatment of swine respiratory disease associated with Actinobacillus   pleuropneumoniae, Pasteurella   multocida, Salmonella choleraesuis, and Streptococcus suis in swine.

For Proportioner : To produce drinking water with a final concentration of 400 mg/ gallon (100 ppm): Fill the bottle of FlorvioTM 2.3% Concentrate Solution with water to the fill line (The Fill line is: 4 liters volume for the 2.17 liter product bottle). Add the contents of the bottle to the mixing tank. Mix thoroughly. Confirm that the proportioner is set to deliver 1:118 (0.85%). Turn on the proportioner. Verify that the drinkers are operational.

For Bulk Tank: To produce drinking water with a final concentration of 400 mg/gallon (100 ppm): Add the FlorvioTM 2.3% Concentrate Solution to the drinking water in the bulk tank. Use one 4L bottle (undiluted) of FlorvioTM 2.3% Concentrate Solution for every 125 gallons of water.

The medicated water should be administered as the only source of drinking water for five (5) consecutive days. Medication should be initiated promptly when swine respiratory disease is diagnosed.

Do not use this product at any other proportioner setting. This will result in precipitation of product. This product is not recommended for use in automatic water proportioners if water hardness is greater than 275 ppm. Water proportioners should be tested for accuracy before use. Do not use or store this product in galvanized metal watering systems or containers. Do not operate chlorinators while administering medication.

Florvio 2.3 Percent

NOT FOR HUMAN USE. KEEP OUT OF REACH OF CHILDREN. This p roduct contains material that can be irritating to skin and eyes. Avoid direct contact with skin, eyes, and clothes. In case of accidental eye exposure, flush with water for 15 minutes. In case of accidental skin exposure, wash with soap and water. Remove contaminated clothing. Consult a physician if irritation persists. The Material Safety Data Sheet (MSDS) contains more detailed occupational safety information.

For customer service and/or a copy of the MSDS, call 1-800-637-0281.

For adverse effects reporting, call 1-800-637-0281.

The effects of florfenicol on swine reproductive performance, pregnancy, and lactation have not been determined. Do not use in swine intended for breeding.

Perianal inflammation may occur transiently following treatment.

Florfenicol is a bacteriostatic agent whose antimicrobial activity is linked to time above MIC.

The pharmacokinetic disposition of florfenicol was evaluated in swine following oral gavage dosing (15 mg/kg), intravenous (IV) dosing (15 mg/kg), and during a five (5) day course of ad libitum administration in drinking water (100 ppm) (Table 1). Despite the rapid elimination seen after IV injection or oral gavage dosing, when administered in medicated drinking water, florfenicol concentrations in the serum of most swine were maintained well above 1.0 mcg/mL for the majority of the (5) day dosing interval. These results are consistent with product effectiveness when administered in drinking water concentrations of 100 ppm over a five (5) day dosing period.

Although the extent of oral drug absorption (F) tended to be variable (24% to 97% following a single oral gavage dose), florfenicol was rapidly absorbed. Its terminal elimination half-life (T1/2) was also rapid, ranging between two (2) to three (3) hours. The average systemic clearance (CLB) following IV administration was 5.6 mL/kg/min. Since the florfenicol steady state volume of distribution (VDSS) closely approximates that of total body water, peripheral tissue concentrations are expected to be similar to those concentrations observed in serum

Table 1. Pharmacokinetic Parameter Values of Florfenicol
following IV or Gavage Dosing
Parameter Mean Value (%CV)
Vdss a (L/kg) 0.95 (6)
CLB a   (mL/kg/min) 5.57 (11)
T1/2 a (hrs) 2.2 (14)
Fb (%) 24-97
aparameter estimate based on intravenous data
bparameter range based upon a single oral gavage dose

Florfenicol is a synthetic broad-spectrum antibiotic active against many gram-negative and gram-positive bacteria isolated from domestic animals. It acts by inhibiting bacterial protein synthesis. In vivo and in vitro activity has been demonstrated against commonly isolated pathogens involved in swine respiratory disease including Actinobacillus   pleuropneumoniae, Pasteurella   multocida, Salmonella choleraesuis, and Streptococcus suis.


The minimum inhibitory concentration (MIC) of florfenicol was determined for isolates obtained from natural respiratory infections of swine from 1990-2001 (Table 2). Susceptibility testing followed the methods of the National Committee of Clinical Laboratory Standards. Reference strains included Escherichia coli ATCC 25922 with a QC range of 2-8 mcg/mL and Actinobacillus   pleuropneumoniae ATCC 27090 with a QC range of 0.25-1 mcg/mL.

Table 2. MIC Values of Florfenicol Against Bacterial Isolates from Swine
Organism Isolate Numbers MIC 90 * (mcg/mL) MIC Range (mcg/mL)
Actinobacillus   pleuropneumoniae 360 0.50 ≤0.125-2.0
Pasteurella   multocida 335 0.50 ≤0.125-2.0
Salmonella chloreraesuis 46 4.0 2.0-4.0
Streptococcus suis   203 2.0 0.5-2.0

*The minimum inhibitory concentration for 90% of the isolates

A target animal safety study was conducted to evaluate the tolerance and effects of florfenicol when orally administered to swine via the drinking water at a rate of 400, 1200, and 2000 mg/gal (1x, 3x, or 5x the clinical dose) for fifteen (15) to sixteen (16) consecutive days (3x the clinical duration), and at 4000 mg/gal (10x clinical dose) for five (5) to six (6) consecutive days (1x the clinical duration). Transient treatment-related constipation and anal swelling were seen in the 3x, 5x, and 10x treatment groups. The constipation in these groups was attributed in part to decreased water consumption during the medication period. There was a decrease in weight gains for the 3x, 5x, and 10x treatment groups compared with the nonmedicated control group.

Transient treatment-related decreases in feed consumption were seen in the 3x, 5x, and 10x treatment groups compared with the nonmedicated control group.

Transient treatment-related decreases in water consumption were noted in all test article-treated groups (1x, 3x, 5x, and 10x) compared with the nonmedicated control group.

The results show that florfenicol can be safely administered to swine according to the recommended clinical regimen of 400 mg/gal in the drinking water for five (5) consecutive days.

Store between 2° - 25°C (36° - 77°F).

FlorvioTM 2.3% Concentrate Solution is supplied in 1 liter and 4 liter plastic bottles containing 0.54 liter and 2.17 liter of solution, respectively.

Made in United Kingdom.

FlorvioTM is a trademark of Novartis AG, Basel
NAH/FLO/23mg/4L-LB/1

Copyright © 2012
Novartis Animal Health US, Inc.
Greensboro, NC 27408

All rights reserved.
Rev. date: 03/13

2.17 Liters
For Use in Animals Only

FLORVIO

(FLORFENICOL) An Antimicrobial

2.3 % Concentrate Solution

Novartis

Animal Health

Florvio 2.3 Percent

Florvio 2.3 Percent

florfenicol SOLUTION, CONCENTRATE

Product Information

Product Type Prescription animal drug label Item Code (Source) NDC:58198-3117
Route of Administration ORAL DEA Schedule

Active Ingredient/Active Moiety

Ingredient Name Basis of Strength Strength
florfenicol Florfenicol 23 mg

Inactive Ingredients

Ingredient Name Strength
POLYETHYLENE GLYCOL 300

Product Characteristics

Color
WHITE (white to almost white crystalline powder)

Packaging

# Item Code Package Description Marketing Start Date Marketing End Date
1 NDC:58198-3117-1 4000 in 1 BOTTLE, PLASTIC

Marketing Information

Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANADA ANADA200519 2014-03-02


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