FDA is updating its existing warnings on the dangers of combining addiction medications and certain anxiety and insomnia drugs to emphasize that despite the potential for potentially deadly interactions, medication-assisted treatment (MAT) for opioid addiction should not be withheld from patients already taking these anxiety medications. Instead, providers should develop a treatment plan that closely monitors any concomitant use of the drugs, FDA says. The agency announced Wednesday that it is updating both the existing boxed warnings for the drugs...