Sodium lauryl sulfate

Clopidogrel bisulfate and rosuvastatin calcium were purchased from Dr. Reddy’s Laboratory Ltd. (Hyderabad, India) and TEVA Pharmaceutical Industries Ltd. (Petah Tikva, Israel), respectively. Low-substituted hydroxypropyl cellulose (L-HPC) was obtained from Shin-Etsu Chemical (Tokyo, Japan). Copovidone, crospovidone, and sodium lauryl sulfate were purchased from BASF (Ludwigshafen, Germany). Lactose monohydrate (Meggle Pharma, Wasserburg, Germany), colloidal silicon dioxide (Evonik, Essen, Germany), talc (Nippon Talc, Osaka, Japan), magnesium stearate (Mallinckrodt Pharmaceuticals, Staines, UK), carnauba wax (SS Pharm Co., Ansan, South Korea), sodium stearyl fumarate (JRS Pharma, Rosenberg, Germany), glyceryl behenate (Gattefosse, Saint-Priest, France), titanium dioxide (Kronos Inc., Chelmsford, MA, USA), sodium starch glycolate (DFE Pharma, Goch, Germany), and croscarmellose sodium (FMC Co., Philadelphia, PA, USA) were also purchased from the corresponding companies as indicated in parentheses. All other chemicals and reagents were of analytical grade.

Bicalutamide (BCL, N-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanamide, 99.8%, Hangzhou Hyper Chemicals Limited, Zhejiang, China) was used as the model drug. Polyvinylpyrrolidone K29/32 (PVP, Ashland, Covington, KY, USA) was used as an excipient. Sodium lauryl sulfate (SLS, BASF, Ludwigshafen am Rhein, Germany) was used to prepare the dissolution medium. Ethanol (absolute, 99.8%, pure p.a., Avantor Performance Materials, Gliwice, Poland) was used as a solvent in evaporation processes. Cyclohexane (ACS, pure p.a., Avantor Performance Materials, Gliwice, Poland) was used as a dispersant in laser diffraction measurements. All chemicals were used as received. Distilled water was used to prepare all of the aqueous solutions.

Indomethacin was purchased
from Acros Organics (Fisher Scientific, Geel, Belgium). Hydroxypropylmethylcellulose
2910, 5 mPa s (HPMC E5) was purchased from DDP Specialty Electronic
Materials (DDP Speciality Electronic Materials Plaquemine). Poloxamer
407, poly(vinylpyrrolidone) (PVP) K30, and sodium lauryl sulfate (SLS)
were obtained from BASF (BASF Chemtrade GmbH, Burghernheim, Germany).
Docusate sodium salt (DOSS) was purchased from Merck KGaA (Darmstadt,
Germany). Purified water was freshly prepared using a Milli-Q integral
water purification system (Milli-Q Advantage A10; Merck Millipore,
Merck A/S, Hellerup, Denmark). Ethanol for analysis was obtained from
Merck KGaA (Merck KGaA, Darmstadt, Germany). Acetone, laboratory reagent
grade ≥99%, was purchased from Fisher Scientific (Fisher Scientific,
Loughborough, U.K.). All suspensions were filtered with a Durapore
0.22 μm PVDF Membrane (Merck Millipore Ltd., Cork, Ireland)
prior to analysis by X-ray powder diffraction (PXRD) and scanning
electron microscopy (SEM).