(19)

(11)

EP 0 275 262 A1

(12)

(43) Date of publication: 27.07.1988 Bulletin 1988/30 (21) Application number: 87902611.0 (22) Date of filing: 16.04.1987

(51) International Patent Classification (IPC):  A01N 33/ 12( . ) A61K 31/ 13( . ) A01N 35/ 02( . ) A61K 31/ 14( . ) (86) International application number: PCT/GB1987/000256 (87) International publication number: WO 1987/006099 (22.10.1987 Gazette 1987/23)

(84) Designated Contracting States: AT BE CH DE FR IT LI LU NL SE (30) Priority: 16.04.1986 GB 19860009329 (71) Applicant: VETHEALTH LIMITED Colchester Essex CO5 9RS (GB)	(72) Inventor: MASTERS, Timothy, Paul Colchester Essex (GB) (74) Representative: Brown, Michael S, et al  c/o WILLIAM JONES Willow Lane House Willow Lane Norwich Norfolk NR2 1EU Norwich Norfolk NR2 1EU (GB)