PolyBlend Rx™ Suppository Base
PolyBlend Rx is an anhydrous granular form pharmaceutical base used in the preparation of suppositories when a water-soluble or water-miscible base is preferred. PolyBlend Rx consists of varying molecular weight polyethylene glycols, a suspending agent, and functional emulsifiers. Due to the specific polyethylene glycols used in this proprietary blend, PolyBlend Rx exhibits excellent stability at room temperature. Melting point: 50.0 to 60.0°C (122 to 140°F).
PolyBlend Rx releases active pharmaceutical ingredients by dissolving rather than melting, providing an extended disintegration time. Recommended for vaginal and rectal suppositories with a long history of use in pharmaceutical applications worldwide. Includes an added suspending agent and emulsifiers that help with dispersibility and bioavailability of hydrophobic actives. Exhibits excellent mold release characteristics -mold lubrication is not required. Ingredients meet the requirements of USP-NF.