Cingal is an off-white, opaque, sterile, single-use suspension of a cross-linked HA gel and a corticosteroid, triamcinolone hexacetonide (TH). Cingal is biocompatible and non-pyrogenic. Cingal is designed to ensure that the cross-linked HA and steroid do not physically or chemically interact, delivering maximum stability of each compound in a convenient, single-injection combination treatment.
Micronized particles of the water-insoluble steroid are suspended in the viscoelastic HA gel and reside within Cingal as a separate solid phase. Both the HA and TH remain unchanged by incorporation into the Cingal formulation.