IE83642B1 - Veterinary treatment - Google Patents

Veterinary treatment

Info

Publication number
IE83642B1
IE83642B1 IE1991/1398A IE139891A IE83642B1 IE 83642 B1 IE83642 B1 IE 83642B1 IE 1991/1398 A IE1991/1398 A IE 1991/1398A IE 139891 A IE139891 A IE 139891A IE 83642 B1 IE83642 B1 IE 83642B1
Authority
IE
Ireland
Prior art keywords
amoxycillin
treatment
clavulanic acid
veterinarily acceptable
derivative
Prior art date
Application number
IE1991/1398A
Other versions
IE911398A1 (en
Inventor
Charles Cracknell Victor
Original Assignee
Pfizer Inc
Filing date
Publication of IE83642B1 publication Critical patent/IE83642B1/en
Priority claimed from GB909009446A external-priority patent/GB9009446D0/en
Application filed by Pfizer Inc filed Critical Pfizer Inc
Publication of IE911398A1 publication Critical patent/IE911398A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2300/00Mixtures or combinations of active ingredients, wherein at least one active ingredient is fully defined in groups A61K31/00 - A61K41/00
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/42Oxazoles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/425Thiazoles
    • A61K31/429Thiazoles condensed with heterocyclic ring systems
    • A61K31/43Compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula, e.g. penicillins, penems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00Drugs for genital or sexual disorders; Contraceptives
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Abstract

abstract e describes Synulox", an oral bolus containing amoxycillin and clavulanic acid which may be used for the treatment of enteritis and navel ill in calves. Unlisted Drugs, vol. 38, no. 6, June 1986 mentions Clavamox“, a veterinary tablet containing amoxycillin trihydrate and potassium clavulanate, which is an antibacterial for dogs and cats.

Description

PATENTS ACT, 1992 1398/91 VETERINARY TREATMENT PFIZER INC.
Veterinam Treatment This invention relates to a method for the treatment of bacterial infections in pigs, particularly those infections associated with farrowing fever and bacterial pneumonia.
GB-B-2 005 538 describes a dry pharmaceutical composition, which comprises 20mg to 1500mg of amoxycillin trihydrate, 20mg to 500mg of potassium clavulanate and a pharmaceutically acceptable carrier, with the proviso that the weight ratio of amoxycillin trihydrate to potassium clavulanate is from 6:1 to 1:1.
Unlisted Drugs, vol. 37, no. 1, January 1985, page 13, abstract e describes Synulox", an oral bolus containing amoxycillin and clavulanic acid which may be used for the treatment of enteritis and navel ill in calves.
Unlisted Drugs, vol. 38, no. 6, June 1986 mentions Clavamox“, a veterinary tablet containing amoxycillin trihydrate and potassium clavulanate, which is an antibacterial for dogs and cats.
EP-A-0010904 discloses intramammary compositions containing amoxycillin, a salt of clavulanic acid and molecular sieve powder. The compositions are administered directly into the mammary gland.
According to the present invention there is provided the use of a formulation comprising an effective amount of amoxycillin or a veterinarily acceptable derivative thereof, clavulanic acid or a veterinarily acceptable derivative thereof, and a veterinarily acceptable carrier in the manufacture of a medicament for use by intramuscular injection in the treatment of farrowing fever and bacterial pneumonia in pigs.
The formulation has notable bactericidal activity against the bacteria associated with the diseases farrowing fever and bacterial pneumonia in particular Actinobacillus gleuropneumoniae.
Suitably the clavulanic acid used in the formulation is in the form of a veterinarily acceptable salt such as potassium clavulanate.
Suitably the amoxycillin used in the formulation is in the form of the trihydrate or a veterinarily acceptable ester or salt of amoxycillin such as the sodium salt.
The preferred weight ratio of amoxycillin or derivative to clavulanic acid or derivative is from 6:1 to 1:1.
Advantageously, a liquid formulation of the invention comprises 36mg/ml clavulanic acid (as potassium clavulanatel and 140mg/ml amoxycillin las amoxycillin trihydrate).
Preferred veterinarily acceptable carriers include for example veterinarily acceptable oils such as mineral oils or fractionated coconut oil such as Miglyol 840.
The formulation is administered to the animal by intramuscular injection.
The formulation is typically prepared as an off-white suspension and is presented as a ‘Ready-to-Use’ form, that is the formulation is prepared and packed in a suitable container, wherein it is ready for administration to the animal in need thereof.
The dosage rate will vary according to the size of the animal. A suitable dosage rate is generally between 2 and 25mg/kg bodyweight of the animal, for example about 8.75mg/kg.
Typically more than a single dose of the formulation will be required for the treatment of the bacterial infections, suitably one dose per day for 3 to 5 days is required. In cases of severe infections prolonged treatment may be required Veterinary formulations for use in the present invention may be prepared by mixing the ingredients thereof in the required proportions; The formulation is then packaged into an appropriate container ready for administration.
The following Example illustrates the invention.
Formulation g/100ml amoxycillin trihydrate 14.0 potassium clavulanate 3.6 phenol 0.5 Miglyol 840 to 100ml Clinical data CASE STUDY 1 Naturally-occuring cases of farrowing fever in pigs were diagnosed on clinical grounds, then treated on an alternating basis with either Synu1ox* or a control drug.
The control drug was a penicillin G/streptomycin mixture.
Treatment was administered once daily for a minimum of 3 days. Synulox* was given at a dose rate of lml per 20kg of body weight.
The clinical response to treatment was scored on a pre-defined scale: CR5 1 = excellent CR5 2 = food CR5 3 = fair CR5 4 = poor (CRS = clinical response score) From the results which are summarised in FIG 1, it can be seen that Synulox* has good efficacy in the treatment of farrowing fever in pigs.
CASE STUDY 2 A total of 229 pigs with pneumonia caused by Actinobacillus (Haemophilus) pleuropneumonia were involved in this study. pigs were treated with Synu1ox* and 73 were treated with a control drug, oxytetracycline (lml/kg body weight administered intramuscularly). Synulox* was injected intramuscularly at a dose rate of lml/20kg body weight.
Treatment was continued daily until clinical signs of cough, dyspnoea, anorexia and depression were remitted and clinical responses were stored on the basis of the number of treatments required to achieve remissision. Clinical response was scored as follows: CR5 1 = excellent CR5 2 = good CR8 3 = fair CR5 4 = poor The clinical response scores are summarised in FIG 2, wherein it was shown that of the total of 156 pigs treated with Synu1ox* 48.1% showed an "excellent” response, 31.4% had a ”good” response, 18.6% ”fair" and only 1.9% "poor" against 35.6% of pigs treated with the control showing an "excellent” response 32.9%, "good”, 31.5% ”fair" and 0% ”poor”. It was therefore concluded that Synulox* has good efficacy in the treatment of bacterial pneumonia in pigs.
* Synulox is a Trademark of Beecham Group p.l.c.
Synulox is an oily suspension contining 35mg/ml clavulanic acid (K salt) and 140mg/ml amoxycillin (trihydrate).

Claims (5)

1. Use of a formulation comprising an effective amount of amoxycillin or a veterinarily acceptable derivative thereof, clavulanic acid or a veterinarily acceptable derivative thereof, and a veterinarily acceptable carrier, in the manufacture of a medicament for use by intramuscular injection in the treatment of farrowing fever or bacterial pneumonia in pigs.
2. The use according to claim 1, wherein the clavulanic acid is used in the form of potassium clavulanate.
3. The use according to claim 1 or 2, wherein the amoxycillin is used in the form of the trihydrate or the sodium salt.
4. The use according to claim 1, 2, or 3, wherein the weight ratio of amoxycillin or derivative to clavulanic acid or derivative is from 6:1 to 1:1.
5. The use according to claim 1, 2, 3, or 4, wherein the veterinarily acceptable carrier is an oil suitable for injection. F. R. KELLY & CO., AGENTS FOR THE APPLICANTS
IE139891A 1990-04-26 1991-04-25 Veterinary treatment IE911398A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBUNITEDKINGDOM26/04/19909009446.7
GB909009446A GB9009446D0 (en) 1990-04-26 1990-04-26 Veterinary composition

Publications (2)

Publication Number Publication Date
IE83642B1 true IE83642B1 (en)
IE911398A1 IE911398A1 (en) 1991-11-06

Family

ID=10675074

Family Applications (1)

Application Number Title Priority Date Filing Date
IE139891A IE911398A1 (en) 1990-04-26 1991-04-25 Veterinary treatment

Country Status (15)

Country Link
EP (1) EP0607122B1 (en)
JP (1) JPH05506237A (en)
KR (1) KR100203704B1 (en)
AT (1) ATE203160T1 (en)
AU (1) AU648792B2 (en)
CA (1) CA2081348C (en)
DE (1) DE69132663T2 (en)
DK (1) DK0607122T3 (en)
ES (1) ES2157888T3 (en)
GB (1) GB9009446D0 (en)
GR (1) GR3036905T3 (en)
IE (1) IE911398A1 (en)
NZ (1) NZ237931A (en)
WO (1) WO1991016050A1 (en)
ZA (1) ZA913073B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9007143D0 (en) * 1990-03-30 1990-05-30 Beecham Group Plc Veterinary composition
US5324840A (en) * 1992-06-11 1994-06-28 Allergan, Inc. Method of treatment with compounds having retinoid-like activity and reduced skin toxicity and lacking teratogenic effects

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1508977A (en) * 1924-01-19 1924-09-16 John Armstrong Hume Advertising device
IE41109B1 (en) * 1974-04-20 1979-10-24 Beecham Group Ltd Novel -lactam antibiotic from streptomyces clavuligerus
US4529720A (en) * 1974-04-20 1985-07-16 Beecham Group, P.L.C. Antibiotic from Streptomyces clavulicerus
JO984B1 (en) * 1977-10-11 1979-12-01 بيتشام غروب ليمتد K-clavulanate/tri hydrate formulations
IL58461A0 (en) * 1978-10-27 1980-01-31 Beecham Group Ltd Intramammary compositions comprising a clavulanic acid salt
GB9007143D0 (en) * 1990-03-30 1990-05-30 Beecham Group Plc Veterinary composition

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