Doctors in California and Texas are currently under investigation for illegally prescribing Ledger the painkillers Oxycontin and Vicodin, according to reports.

Whether the individual doctors did anything wrong, however, patients can get in trouble when they go to multiple doctors — which is increasingly the case in today’s world.

That’s why it is important to take the safety of your drug regimen in your own hands through a sophisticated tool like PharmaSurveyor (now in beta) or some of the other drug-interaction tools currently on line, like this one at DoubleCheckMD .