We have an open bug report to track this issue (http://bugzilla/show_bug.cgi?id=944).
The HealthFrame v3 data model has already been updated to accomodate these changes - but not the user interface.
In order to get HealthFrame v3 released sooner, will do NOT plan to incorporate this feature in HealthFrame v3. Instead, its scheduled for HealthFrame v3.1.
We plan to have the ability to separate track direction objects (which include prescriptions), consumption history (for pill tracking), and better linking of expenses.