Kenjiro Koga

Application of pressure-controlled colon delivery capsule to oral administration of glycyrrhizin in dogs

Nobuhito Shibata, Tomoya Ohno, Tatsuharu Shimokawa et al. · Journal of Pharmacy and Pharmacology · 2001 · 54 citations

Test Pcdcs, Colon Delivery System, Gastrointestinal Pharmacology +11

Nano-sized water-in-oil-in-water emulsion enhances intestinal absorption of calcein, a high solubility and low permeability compound

Kenjiro Koga, Nobuo Takarada, Kanji Takada · European Journal of Pharmaceutics and Biopharmaceutics · 2009 · 52 citations

Food Chemistry, Digestive Tract, Pharmacology +3

In vitro and in situ evidence for the contribution of Labrasol® and Gelucire 44/14 on transport of cephalexin and cefoperazone by rat intestine

Kenjiro Koga, Susumu Kawashima, Masahiro Murakami · European Journal of Pharmaceutics and Biopharmaceutics · 2002 · 35 citations

Gelucire 44/14, Gastrointestinal Pharmacology, Situ Evidence +7

Modification of ceftibuten transport by the addition of non-ionic surfactants

Kenjiro Koga, Takao Ohyashiki, Masahiro Murakami et al. · European Journal of Pharmaceutics and Biopharmaceutics · 2000 · 22 citations

Chemical Engineering, Micelle, Amphiphilic System +4

Preparation and Rectal Absorption of Highly Concentrated Glycyrrhizin Solution

Kenjiro Koga, Susumu Kawashima, Nobuhito Shibata et al. · Biological and Pharmaceutical Bulletin · 2003 · 17 citations · Full text

Rectal Absorption, Solvent Extraction, Pharmaceutical Science +14