Luckily, next generation devices such as Zuri aim to help remind patients to take their medication and also provide an electronic record of time and dosage to the doctor. Real-time interfacing with your medical provider is the only way to monitor medication activity successfully.
Here's more from the WSJ.
...the Zuri, an iPod-sized device that sends patients reminders to take their medications and records their compliance, which users and, if they choose, their doctors can track through a companion Web page.
Intel's care-management tool, called Health Guide, combines an in-home patient device with an online interface that doctors can use to monitor and remotely manage care. The in-home patient device collects readings from specific models of wired and wireless medical devices, such as blood-pressure monitors and glucose meters. It then displays the data for the patient on a touch screen and sends the readings to a secure host server, where health-care professionals can review the information and provide feedback via video conferencing and email.
Meanwhile, Microsoft is working with home-health and fitness-device makers to integrate vital-signs data into HealthVault, an online service the software company recently launched that allows consumers to store, manage and selectively share medical data.