A novel, patented, cost-effective, commercially-viable, water-erodible pharmaceutical carrier device, the multi-layered device may be applied to mucosal surfaces, and adheres immediately, delivering actives to treat specific localized diseases/disorders. OraDisc technology can deliver drugs systemically across the mucosal surface or for the release of drugs into the oral cavity. The device causes minimum discomfort, is easy to apply and capable of providing tailored erosion rates to deliver therapeutics over different time intervals.