the effects of morphine hcl and a synthetic met-enkephalin analogue [ d-ala2 , mephe4 , met ( o ) 5ol ] enkephalin ( fk 33-824 ) on gastric damage produced by the intraperitoneal administration of indomethacin ( 10 mg/kg i.p . ) have been investigated .
C0014295
met-enkephalin
C0014298
enkephalin