Piroxicam belongs to a kind of non-steroidal anti-inflammatory drugs, anti-inflammatory effects, but poorly soluble in water, slowly absorbed, following oral can cause gastrointestinal bleeding and ulcers, muscle injection drug may cause pain at the injection site and mild tissue necrosis. Piroxicam preparation into piroxicam - beta - cyclodextrin (piroxicam - beta - cyclodextrin inclusion compound, can increase the dissolution rate of drug, lowering the gastrointestinal tract irritation. Oral analgesics xi tong (Cycladol) for piroxicam - beta - namely the successful application of entrapped cyclodextrin complex Piroxicam-Beta-Cyclodextrin is made by enwrapping medical piroxicam and medical beta-cyclodextrin in a certain inverse proportion with a unique art.