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. Author manuscript; available in PMC: 2018 Jan 10.
Published in final edited form as: Int J Pharm. 2016 Oct 31;516(1-2):196–203. doi: 10.1016/j.ijpharm.2016.10.072

Table 1.

Average solubility of vitamin D3 in PBS ± surfactant and TyroSpheres at room temperature.

Sample content Concentration of vitamin D3 (μg/mL)
PBS, pH 7.4 < limit of quantitation
PBS + 0.01% (w/w) Tween 80 4.1
PBS + 0.1% (w/w) Tween 80 55.0
PBS + 1.0% (w/w) Tween 80 141.4
4% loaded in TyroSpheres 564.7
30% loaded in TyroSpheres 3483.7