Porous dosage forms prepared by the tunable modular design (TDM). Left: A citalopram hydrobromide (CHB)-free module. Middle: 0.46 mg of CHB printed on a CHB-free module. Right: 0.46 mg of CHB printed on a CHB-free module with a quick response (QR) code printed on the top side of the module. The QR code was printed with a commercially available ink from Primera Technology Inc.[36]The desired QR code is possible to be printed on either side of the module.
