Drug pump devices with syringe or pen-injection configurations may utilize pre-filled drug vials or cartridges; the prefilled vials may be equipped with mechanisms for stirring their contents and/or changing a chemical environment therein to improve therapies. To facilitate combination therapies, multiple drug pump devices may be assembled into a larger system. Lancet insertion devices for use in conjunction with the drug pump devices may feature improved safety characteristics and/or mechanisms for minimizing pain and discomfort.
