In the present study, the polymer-drug blends were printable without the added plasticizer, as IND itself acted as plasticizer in the mixture. Therefore, the improved fiber stacking is the primary benefit of adding triethyl citrate. For IND as a model drug, the addition of the plasticizer is optional, whereas preliminary tests with other drugs indicate that the use of a plasticizer to decrease the viscosity of the polymer-drug blends is important to obtain blends that can be fabricated via MEW. This is currently explored in more detail and will be reported in due time.