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US07988998B2 Sustained-release tramadol formulations with 24-hour efficacy 有权
持续释放曲马多配方,具有24小时功效

Sustained-release tramadol formulations with 24-hour efficacy
Abstract:
A sustained-release tramadol formulation oral administration is provided which, upon initial administration of one dose, provides an analgesic effect within 2 hours, which analgesic effect continues for at least 24 hours after administration.
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