I think the difference is between the one which you can grow Vs the one which you can synthesize. If you can grow a drug then you need to move it if you can sy

I think the difference is between the one which you can grow Vs the one which you can synthesize. If you can grow a drug then you need to move it if you can synthesize it locally then there is no need to transport it. Synthesizing a drug has much smaller footprint so easier to hide the operation Vs growing some drug.