(EN) - 74 - ABSTRACT OF THE DISCLOSURE Novel analgesic and anti-inflammatory composi- tions of matter for use in eliciting an analgesic or anti-inflammatory response, said compositions comprising xanthine together with a selected non-narcotic analgesic/nonsteroidal anti-inflammatory drug or a selected narcotic analgesic, or both, are disclosed. When used in combination with the selected drugs, such xanthine enhances the analgesic or anti-inflammatory response and also hastens its onset.