the effects of intravenous ltd4 ( 0.5 microgram kg-1 ) were short lived and abolished by pretreatment of the animal with either cyclooxygenase inhibitors , a thromboxane synthetase inhibitor ( oky 1555 ) or an srs-a antagonist ( fpl 55712 ) .
C0023544
ltd4
C0038091
srs-a