In a new video alert the FDA just posted titled "Traveling with Prescription Medications," Lindsay Davison, a health promotion officer at the FDA, warns travelers about traveling with pharmaceutical medication. Travelers are advised to notify TSA officers of any prescriptions they possess and produce said medications before the screening begins. 

"Passengers should inform [TSA] officers of medications and separate them from other belongings before screening begins," Davison says. 

Excerpt below:

DAVISON: “DEA enforces regulations for controlled substances in schedules 2 through 5 in the code of federal regulations. This is also available on their website. DEA provides contact information to local field offices online.”
KREMZNER: “What about the Transportation Security Administration?”
DAVISON: “Great point. The TSA posts information for travelers who need medication on their website. Passengers are allowed to bring medication in tablet or other solid form through security screening checkpoints, as long as they are screened. Passengers should inform officers of medications and separate them from other belongings before screening begins