Abstract
Nitric oxide-releasing non-steroidal anti-inflammatory drugs (NO-NSAIDs) are gaining attention as potentially gastric-sparing NSAIDs. Herein, we report a novel class of ‘1-(nitrooxy)ethyl ester’ group-containing NSAIDS as efficient NO releasing ‘true’ prodrugs of aspirin and naproxen. While an aspirin prodrug exhibited comparable oral bioavailability and antiplatelet activity (i.e., TXB2 inhibition) to those of aspirin, a naproxen prodrug exhibited better bioavailability than naproxen. These promising NO-NSAIDs protected experimental rats from gastric damage. We therefore believe that these promising NO-NSAIDs could represent a new class of potentially ‘Safe NSAIDs’ for the treatment of arthritic pain, inflammation and cardiovascular disorders in the case of NO-aspirin.
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