In one aspect the present invention features process for making a tablet comprising at least one pharmaceutically active agent, said method comprising the step of applying radiofrequency energy to a powder blend to sinter said powder blend into said tablet, wherein said powder blend comprises lossy coated particles and said at least one pharmaceutically active agent, wherein said lossy coated particles comprises a substrate that is at least partially coated with a lossy coating comprising at least one activator, wherein said substrate has a Q value of greater than 100 and said activator has a Q value of less than 75.