alexa Pharmacologic considerations in the management of peripartum conditions in the cow.
Reproductive Medicine

Reproductive Medicine

Journal of Fertilization: In Vitro - IVF-Worldwide, Reproductive Medicine, Genetics & Stem Cell Biology

Author(s): Gilbert RO, Schwark WS

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Abstract As is true with the use of drugs in veterinary medicine in general, there are many controversial issues in the management of peripartum conditions in the cow. For example, the use of PG versus antibacterial drugs in the management of postpartum uterine infections has advocates for the use of either approach. Intrauterine versus systemic administration of antibacterial drugs for the prophylaxis or treatment of postpartum metritis is another area of debate. Clearly, more research is needed in this area. Equally clearly, however, the research results that are available are being disregarded on a daily basis. In considering this discussion of the use of drugs in the peripartum period, one is struck by the frequency that optimum drug therapy of a condition relies on the extralabel use of nonapproved preparations. What guidelines are available to the practitioner in this regard? One example is lack of availability of appropriate dosage regimens or withdrawal times for food derived from treated animals. Unfortunately, pharmacokinetic and residue studies that would aid in establishing guidelines generally are not available and, in most instances, are not forthcoming. Extrapolation of data from other species to the ruminant or extrapolation of information from one drug to a related compound (such as prediction of residue and withdrawal data from an approved aminoglycoside, dihydrostreptomycin, to another unapproved drug, gentamicin) is fraught with difficulties. The need for research in this area is obvious, and lack of such information is one of the major dilemmas in trying to establish rational drug therapy in the food-producing animal. Recent developments in drug therapy have led to innovative approaches for the management of peripartum and other diseases in cattle. The use of PG in the treatment of reproductive disorders, so commonplace and widely accepted in contemporary veterinary practice, is a relatively recent approach that continues to be refined with the development of new, more potent, more specific PG analogs. What will be the role of ceftiofur, a potent, third-generation cephalosporin that currently is approved only for the treatment of respiratory infections in cattle, in the management of reproductive tract infections? The fluoroquinolones, which represent a novel approach to the control of infectious diseases, are being increasingly used in veterinary and human medicine, and one may predict that these powerful antimicrobial drugs will find application in bovine practice, including for the treatment of peripartum infections. Pharmacologic manipulation of immune and defense mechanisms also is an approach with some promise.(ABSTRACT TRUNCATED AT 400 WORDS)
This article was published in Vet Clin North Am Food Anim Pract and referenced in Journal of Fertilization: In Vitro - IVF-Worldwide, Reproductive Medicine, Genetics & Stem Cell Biology

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