ISSN 2398-2977      

Oxytetracycline

pequis
Contributor(s):

Sally Anne Argyle


Introduction

Name

  • Oxytetracycline.

Class of drug

Description

Chemical name

  • [4S-(4-alpha,4a-alpha,5-alpha,5a-alpha,6-beta,12a-alpha)]-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,6,10,12,12a-hexahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide.

Molecular formula

  • C22H24N2O9.

Physical properties

  • Aqueous solution.
  • Tablets.

Storage requirements

  • <25°C.
  • Protect from light.

Uses

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Indications

  • Oxytetracycline-sensitive infections.
  • Broad spectrum activity, including:
  • Mycobacteriumspp,Proteus vulgaris,Pseudomonasaeruginosaand someMycoplasmaspp tend to be resistant.
  • Limited activity againstStaphylococciand theEnterobacteriaceae.
  • Drug of choice for Potomac horse fever   Potomac Horse Fever  and equine ehrlichiosis   Anaplasmosis  .
  • Has been used to treat flexural limb deformities in foals.

Administration

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Pharmacokinetics

Precautions

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Interactions

with other drugs

  • Corticosteroids increase risk of enterocolitis.
  • Antacids and kaolin mixtures reduce oral bioavailability of oxytetracycline.
  • Enhanced anticoagulant effect of warfarin.
  • Reduced activity of concurrently administered bactericidal antimicrobials such as the beta-lactams.

Adverse Reactions

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource,
  • Arnockzky S P, Lavagnino M, Gardner K L et al (2004) In vitro effects of oxytetracycline on matrix metalloproteinase-1 mRNA expression and on collagen gel contraction by cultured myofibroblasts obtained from the accessory ligament of foals. Am J Vet Res 65 (4), 491-496 PubMed.

Other sources of information

  • Bertone J & Horspool L (2004) Eds. Equine Clinical Pharmacology. Saunders. ISBN: 0702024848.
  • Derived from The Veterinary Formulary (2004) 6th edn. Ed: Bishop Y. British Veterinary Association and Royal Pharmaceutical Society. ISBN: 0853695792.
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