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Abstract Prostaglandins (PGs) such as PGE2 and PGI2 are vasodilators, and leukotrienes (LTs) such as LTB4 and LTC4 are vasoconstrictors. Our previous studies have shown that salicylate ototoxicity is associated with decreased levels of PGs and increased levels of LTs. We hypothesized that vasodilating PGs increase cochlear blood flow and vasoconstricting LTs decrease cochlear blood flow. PGE2, Iloprost...