Hi-Tech Pain-Rx 90 tabs. Natural COX-2 Inhibitor. Pain-Rx is unlike any other pain management product on the market. Pain-Rx combines both the analgesic effect of natural opioid agonists with natural COX-2 inhibitors. People who experience minor pain chronic discomfort and constant or frequent muscle pain need to give this amazing product a try. Pain-Rx is the solution both OTC and prescription pain medicines have unsuccessfully addressed from a safety and efficacy standpoint.Other products from HerbsPro