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Braid HR, Ireland JL. A cross‐sectional survey of the diagnosis and treatment of distal limb cellulitis in horses by veterinary surgeons in the United Kingdom. EQUINE VET EDUC 2021. [DOI: 10.1111/eve.13484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- H. R. Braid
- Institute of Infection, Veterinary & Ecological Sciences Faculty of Health and Life Sciences The University of Liverpool Neston, Wirral UK
| | - J. L. Ireland
- Institute of Infection, Veterinary & Ecological Sciences Faculty of Health and Life Sciences The University of Liverpool Neston, Wirral UK
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2
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Floyd EF, Easton‐Jones CA, Theelen MJP. Systemic antimicrobial therapy in foals. EQUINE VET EDUC 2021. [DOI: 10.1111/eve.13467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- E. F. Floyd
- Rossdales Equine Hospital Newmarket, Suffolk UK
| | | | - M. J. P. Theelen
- Department of Clinical Sciences (Equine Internal Medicine) Faculty of Veterinary Medicine Utrecht University UtrechtThe Netherlands
- Department of Biomolecular Health Sciences (Clinical Infectiology) Faculty of Veterinary Medicine Utrecht University Utrecht The Netherlands
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3
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Hardefeldt LY, Bailey KE, Slater J. Overview of the use of antimicrobial drugs for the treatment of bacterial infections in horses. EQUINE VET EDUC 2020. [DOI: 10.1111/eve.13371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- L. Y. Hardefeldt
- Asia‐Pacific Centre for Animal Health Melbourne Veterinary School Faculty of Veterinary and Agricultural Sciences University of Melbourne Parkville VictoriaAustralia
- National Centre for Antimicrobial Stewardship Peter Doherty Institute Carlton VictoriaAustralia
| | - K. E. Bailey
- Asia‐Pacific Centre for Animal Health Melbourne Veterinary School Faculty of Veterinary and Agricultural Sciences University of Melbourne Parkville VictoriaAustralia
- National Centre for Antimicrobial Stewardship Peter Doherty Institute Carlton VictoriaAustralia
| | - J. Slater
- U‐Vet Melbourne Veterinary School Faculty of Veterinary and Agricultural Sciences University of Melbourne Werribee Victoria Australia
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Mercer MA, Davis JL. Clinical insights: Antimicrobials in an age of resistance. Equine Vet J 2020; 51:711-713. [PMID: 31584724 DOI: 10.1111/evj.13151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- M A Mercer
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - J L Davis
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
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5
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Hardefeldt LY. Dosing equine antimicrobials: Ensuring clinical success and avoiding antimicrobial resistance. EQUINE VET EDUC 2019. [DOI: 10.1111/eve.13190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- L. Y. Hardefeldt
- Asia‐Pacific Centre for Animal Health Melbourne Veterinary School Department of Veterinary Biosciences Faculty of Veterinary and Agricultural Sciences University of Melbourne Parkville Victoria Australia
- National Centre for Antimicrobial Stewardship Peter Doherty Institute Carlton Victoria Australia
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Hardefeldt LY, Crabb HK, Bailey KE, Gilkerson JR, Billman-Jacobe H, Browning GF. Antimicrobial dosing for common equine drugs: a content review and practical advice for veterinarians in Australia. Aust Vet J 2019; 97:103-107. [PMID: 30919436 DOI: 10.1111/avj.12791] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/17/2019] [Accepted: 01/22/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Appropriate dosing with antimicrobial agents is critical for effective treatment and to prevent the development of antimicrobial resistance. METHODS A review was undertaken of equine journal articles (Equine Veterinary Journal, Equine Veterinary Education, Australian Veterinary Journal, Australian Equine Veterinarian, Journal of Veterinary Internal Medicine and Journal of Equine Veterinary Science) between January 2015 and August 2018. Those with dosing regimens for procaine penicillin G, gentamicin or trimethoprim-sulfonamide in adult horses were examined and evaluated. Pharmacokinetics and -dynamics of these drugs were also reviewed. RESULTS & CONCLUSION The most frequently reported doses for penicillin, gentamicin and trimethoprim-sulfonamide were 20-25,000 IU/kg, 6.6 mg/kg and 30 mg/kg, respectively. Veterinarians treating equine patients in Australia should be aware of the current recommended doses and inter-dosing intervals to ensure efficacy in therapy and to preserve the usefulness of these antimicrobials for the future.
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Affiliation(s)
- L Y Hardefeldt
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Science, University of Melbourne & National Centre for Antimicrobial Stewardship, Carlton, Victoria, Australia
| | - H K Crabb
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Science, University of Melbourne & National Centre for Antimicrobial Stewardship, Carlton, Victoria, Australia
| | - K E Bailey
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Science, University of Melbourne & National Centre for Antimicrobial Stewardship, Carlton, Victoria, Australia
| | - J R Gilkerson
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Science, University of Melbourne & National Centre for Antimicrobial Stewardship, Carlton, Victoria, Australia
| | - H Billman-Jacobe
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Science, University of Melbourne & National Centre for Antimicrobial Stewardship, Carlton, Victoria, Australia
| | - G F Browning
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Science, University of Melbourne & National Centre for Antimicrobial Stewardship, Carlton, Victoria, Australia
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7
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Hardefeldt LY, Gilkerson JR, Billman-Jacobe H, Stevenson MA, Thursky K, Browning GF, Bailey KE. Antimicrobial labelling in Australia: a threat to antimicrobial stewardship? Aust Vet J 2018; 96:151-154. [PMID: 29691852 DOI: 10.1111/avj.12677] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/09/2017] [Accepted: 11/22/2017] [Indexed: 11/27/2022]
Abstract
Antimicrobial resistance is a public health emergency, placing veterinary antimicrobial use under growing scrutiny. Antimicrobial stewardship, through appropriate use of antimicrobials, is a response to this threat. The need for antimicrobial stewardship in Australian veterinary practices has had limited investigation. A 2016 survey undertaken to investigate antimicrobial usage patterns by Australian veterinarians found that antimicrobial dose rates were varied and often inappropriate. Doses of procaine penicillin in horses and cattle were often low, with 68% and 90% of respondents, respectively, reporting doses that were unlikely to result in plasma concentrations above minimum inhibitory concentrations for common equine and bovine pathogens. Frequency of penicillin administration was also often inappropriate. Gentamicin doses in horses were largely appropriate (89% of dose rates appropriate), but 9% of respondents reported twice daily dosing. Amoxycillin and amoxycillin-clavulanate were administered at the appropriate doses, or above, to dogs and cats by 54% and 70% of respondents, respectively. Here, we explore the potential reasons for inappropriate antimicrobial dose regimens and report that antimicrobial labels often recommend incorrect dose rates and thus may be contributing to poor prescribing practices. Changes to legislation are needed to ensure that antimicrobial drug labels are regularly updated to reflect the dose needed to effectively and safely treat common veterinary pathogens. This will be especially true if changes in legislation restrict antimicrobial use by veterinarians to the uses and doses specified on the label, thus hampering the current momentum towards improved antimicrobial stewardship.
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Affiliation(s)
- L Y Hardefeldt
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
| | - J R Gilkerson
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
| | - H Billman-Jacobe
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
| | - M A Stevenson
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
| | - K Thursky
- National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Carlton, VIC, Australia
| | - G F Browning
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
| | - K E Bailey
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
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8
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Haucke K, Kuhn M, Lübke-Becker A, Mählmann K, Lischer C. Two Regimes of Perioperative Antimicrobial Prophylaxis for Equine Castration: Clinical Findings, Acute-Phase Proteins, and Bacterial Cultures. J Equine Vet Sci 2017. [DOI: 10.1016/j.jevs.2017.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Li M, Gehring R, Riviere JE, Lin Z. Development and application of a population physiologically based pharmacokinetic model for penicillin G in swine and cattle for food safety assessment. Food Chem Toxicol 2017. [DOI: 10.1016/j.fct.2017.06.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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10
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Hardefeldt LY, Browning GF, Thursky K, Gilkerson JR, Billman-Jacobe H, Stevenson MA, Bailey KE. Antimicrobials used for surgical prophylaxis by equine veterinary practitioners in Australia. Equine Vet J 2017; 50:65-72. [PMID: 28608525 DOI: 10.1111/evj.12709] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/02/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Antimicrobials are widely used in Australian veterinary practices, but no investigation into the classes of antimicrobials used, or the appropriateness of use in horses, has been conducted. OBJECTIVES The aim of the study was to describe antimicrobial use for surgical prophylaxis in equine practice in Australia. STUDY DESIGN Cross-sectional questionnaire survey. METHODS An online questionnaire was used to document antimicrobial usage patterns. Information solicited in the questionnaire included demographic details of the respondents, the frequency with which antimicrobials were used for specific surgical conditions (including the dose, timing and duration of therapy) and practice antimicrobial use policies and sources of information about antimicrobials and their uses. RESULTS A total of 337 members of the Australian veterinary profession completed the survey. Generally, the choice of antimicrobial was appropriate for the specified equine surgical condition, but the dose and duration of therapy varied greatly. While there was poor optimal compliance with British Equine Veterinary Association guidelines in all scenarios (range 1-15%), except removal of a nonulcerated dermal mass (42%), suboptimal compliance (compliant antimicrobial drug selection but inappropriate timing, dose or duration of therapy) was moderate for all scenarios (range 48-68%), except for an uninfected contaminated wound over the thorax, where both optimal and suboptimal compliance was very poor (1%). Veterinarians practicing at a university hospital had higher odds of compliance than general practice veterinarians (Odds ratio 3.2, 95% CI, 1.1-8.9, P = 0.03). MAIN LIMITATIONS Many survey responses were collected at conferences which may introduce selection bias, as veterinarians attending conferences may be more likely to have been exposed to contemporary antimicrobial prescribing recommendations. CONCLUSIONS Antimicrobial use guidelines need to be developed and promoted to improve the responsible use of antimicrobials in equine practice in Australia. An emphasis should be placed on antimicrobial therapy for wounds and appropriate dosing for procaine penicillin.
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Affiliation(s)
- L Y Hardefeldt
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Carlton, Victoria, Australia
| | - G F Browning
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Carlton, Victoria, Australia
| | - K Thursky
- National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Carlton, Victoria, Australia
| | - J R Gilkerson
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - H Billman-Jacobe
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Carlton, Victoria, Australia
| | - M A Stevenson
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - K E Bailey
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Carlton, Victoria, Australia
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Rhodes DM, Magdesian KG, Byrne BA, Kass PH, Edman J, Spier SJ. Minimum inhibitory concentrations of equine Corynebacterium pseudotuberculosis isolates (1996-2012). J Vet Intern Med 2015; 29:327-32. [PMID: 25586790 PMCID: PMC4858058 DOI: 10.1111/jvim.12534] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 10/24/2014] [Accepted: 12/03/2014] [Indexed: 11/30/2022] Open
Abstract
Background Few studies report the minimum inhibitory concentrations for antimicrobials against equine Corynebacterium pseudotuberculosis isolates. Hypothesis/Objectives To evaluate trends in the in vitro activities of 20 antimicrobials against equine Corynebacterium pseudotuberculosis isolates from 1996 to 2012 and to determine if a relationship exists between the minimum inhibitory concentration (MIC) and location of the abscess. Animals Corynebacterium pseudotuberculosis isolates from 196 horses with naturally occurring disease. Methods Retrospective and cross‐sectional design. Medical records were reviewed to obtain clinical and MIC data. Minimum inhibitory concentrations were determined by the microdilution technique. The MIC results over 3 periods were compared (1996–2001, 2002–2006, 2007–2012). Results The MIC90 values for clinically relevant antimicrobials were as follows: chloramphenicol ≤4 μg/mL, enrofloxacin ≤0.25 μg/mL, gentamicin ≤1 μg/mL, penicillin =0.25 μg/mL, rifampin ≤1 μg/mL, tetracycline ≤2 μg/mL, trimethoprim‐sulfamethoxazole (TMS) ≤0.5 μg/mL, ceftiofur =2 μg/mL, and doxycycline ≤2 μg/mL. There were no significant changes in MIC results over the study period. There was no relationship between MIC patterns and abscess location. Conclusions and Clinical Importance The MIC50 and MIC90 values of antimicrobials evaluated in this study for equine isolates of C. pseudotuberculosis did not vary over time. Abscess location was not associated with different MIC patterns in cultured isolates. Several commonly used antimicrobials are active in vitro against C. pseudotuberculosis in vitro.
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Affiliation(s)
- D M Rhodes
- School of Veterinary Medicine, W.R. Pritchard Veterinary Medical Teaching Hospital, University of California, Davis, CA
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12
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Intramuscular administration of sodium benzylpenicillin in horses as an alternative to procaine benzylpenicillin. Res Vet Sci 2013; 95:212-8. [PMID: 23419937 DOI: 10.1016/j.rvsc.2013.01.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 11/02/2012] [Accepted: 01/20/2013] [Indexed: 11/21/2022]
Abstract
The aim was to supply information about the possibility of replacing the procaine salt with the sodium salt for benzylpenicillin IM treatment in horse in order to diminish the risk for procaine adverse effects. In a crossover study eight horses were given 15 mg/kg sodium benzylpenicillin (Na-pc) twice daily or procaine benzylpenicillin (control) once daily IM for four days. The half-life of Na-pc was 1.9h, peak concentration was 14,600 ng/mL reached after about 23 min. Trough plasma concentration was 281 ng/mL and protein binding 62.8%. The fT>MIC for Staphylococcus aureus was 63% and 100% for Streptococcus equi subsp. equi and Streptococcus zooepidemicus, indicating an adequate antimicrobial therapy. However, Na-pc cannot be recommended from a welfare point of view since the horses showed more pain related behaviour and more pain and swelling compared to the control treatment.
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Olsén L, Ingvast-Larsson C, Broström H, Larsson P, Tjälve H. Clinical signs and etiology of adverse reactions to procaine benzylpenicillin and sodium/potassium benzylpenicillin in horses. J Vet Pharmacol Ther 2007; 30:201-7. [PMID: 17472651 DOI: 10.1111/j.1365-2885.2007.00851.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Case reports of 59 horses reacting adversely to procaine benzylpenicillin or to sodium or potassium benzylpenicillin in Sweden in 2003-2005 were obtained through contacts with horse-owners. For the assessment of the reports, various parameters were evaluated, such as the times to the reactions, information on previous penicillin treatment, the clinical signs and the actions taken in the reacting horses. Among the reports, two horses had received sodium or potassium benzylpenicillin intravenously, whereas the remaining 57 horses had been treated with procaine benzylpenicillin intramuscularly. Allergy may underlie the adverse reactions in the horses given sodium and potassium benzylpenicillin, and in a few of the horses given procaine benzylpenicillin. However, in most horses in the latter group, the clinical signs may be due to the toxic effects of procaine. In these horses, the dominating clinical signs were locomotor and behavioral changes. Some risk factors may enhance the probability that horses react to procaine. One is repeated injections, which increase the likelihood of intravascular administration and also may increase the sensitivity to procaine due to neuronal sensitization (kindling). Procaine is rapidly hydrolyzed by plasma esterases to nontoxic metabolites. When high amounts of procaine enter the circulation, the hydrolyzing capacity may be exceeded and toxicity occurs. Analyses of plasma esterases from reacting horses showed lower activity than in nonreacting control horses. Low esterase activity may increase the possibility of procaine toxicity and constitute another risk factor.
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Affiliation(s)
- L Olsén
- Division of Pathology, Pharmacology and Toxicology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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Ranheim B, Ween H, Egeli AK, Hormazabal V, Yndestad M, Søli NE. Benzathine penicillin G and procaine penicillin G in piglets: comparison of intramuscular and subcutaneous injection. Vet Res Commun 2003; 26:459-65. [PMID: 12241099 DOI: 10.1023/a:1020590408947] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The disposition of penicillin G in piglets is described after intramuscular or subcutaneous injection of depot preparations. The piglets were injected with 33,000 IU/kg or 100,000 IU/kg benzathine + procaine penicillin G intramuscularly or subcutaneously, or 100,000 IU/kg procaine penicillin G intramuscularly or subcutaneously. Intramuscular injection of benzathine + procaine penicillin resulted in higher maximum concentrations in plasma (Cmax) than did subcutaneous injection. The mean residence time (MRT) of penicillin G was longer when the drugs were injected subcutaneously rather than intramuscularly. The plasma concentration versus time profiles of the subcutaneous injections of benzathine + procaine penicillin revealed secondary peaks, possibly reflecting a certain degree of inflammation at the injection site.
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Affiliation(s)
- B Ranheim
- Department of Pharmacology, Microbiology and Food Hygiene, The Norwegian School of Veterinary Science, Oslo.
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