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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Toxicol Appl Pharmacol. 2016 Mar 4;298:9–18. doi: 10.1016/j.taap.2016.03.001

Figure 2. In vitro release kinetics for rolipram formulations.

Figure 2

Rolipram formulations produced by spray drying were evaluated using in vitro release assays. A) Neat rolipram, 0.4 mm nozzle. B) Rolipram/PLGA formulations containing 20%, 30%, and 40% rolipram, 0.4 mm nozzle. C) Rolipram/PLGA formulations containing 20% and 40% rolipram, 0.6 mm nozzle. D) Rolipram/PLGA formulations containing 40% rolipram with altered lactide:glycolide ratio or addition of PEG, 0.4 mm nozzle.