CHARGE-NEUTRAL COMPOUND MAINTAINS DOSAGE UNIFORMITY FOR INHALATION DEVICE

摘要

New propellants used in drug delivery systems have exacerbated a potential problem in aerosol inhalation devices. Ensuring patients receive consistent dosages is essential to successful treatment. But static build-up in valve holding chambers (VHCs) can attract and hold residual amounts of medication, especially when used with a new class of inhalers that have replaced chlorofluorocarbon propellants with hydrofluoroalkane.