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IC50: A potent COX-1 and COX-2 inhibitor with IC50 values of 5 nM and 8 nM, respectively.

Lornoxicam, a new nonsteroidal anti-inflammatory drug (NSAID) belonging to the oxicam class. By intensively inhibit COX-1 and COX-2, this drug, both in oral and parenteral formulations, shows remarkable analgesic, anti-inflammatory and antipyretic properties. [1]

In vitro: Studies on intact human cells showed that lornoxicam intensively inhibit COX-1 and COX-2 with the lowest IC50 among a large panel of NSAIDs tested. Similar findings were obtained in the whole blood for COX-1/-2. In addition lornoxicam suppressed NO formation in a dose-dependently manner with an IC50 of 65 μM. [2]

In vivo: In vivo studies found that Lornoxicam was as effective as comparative NSAIDs and that 8 mg Lornoxicam was more effective than 10 mg morphine as a pain-reliever after oral surgery. Orally administration of lornoxicam at 16-24 mg daily was more effective than tramadol at 300 mg daily in pain-alleviating after knee surgery. Compared to naproxen, Lornoxicam showed higher therapeutic potency and lower gastrointestinal toxicity. This was probably due to the short half-life of lornoxicam as compared to the other oxicams. [3]

Clinical trials: A clinical study was performed to assess the efficacy and tolerability of intravenous lornoxicam in Indian patients with postoperative pain or other acute painful traumatic conditions. Patients were treated for 3 days with intravenous lornoxicam at a dosage of 8 mg twice or three times daily. Study demonstrated that intravenous lornoxicam is a powerful NSAID with an optimal efficacy/toxicity ratio and thus could be a reasonable therapeutic option for patients with painful traumatic conditions requiring parenteral NSAIDs. [4]

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