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The aim of this study was to investigate the effect of biochanin A (BCA) on the pharmacokinetics of tamoxifen, a substrate of P-glycoprotein (P-gp) and cytochrome 3A (CYP3A), in female rats. The tamoxifen was administered orally (10 mg/kg) without or with oral BCA (100 mg/kg) in female rats. As BCA is an inhibitor of CYP 3A and P-gp it was expected to(More)
The present study aimed at developing an optimal nanoemulsion of ezetimibe and evaluating its stability, pharmacodynamic and pharmacokinetic potential. Solubility of ezetimibe was determined in various vehicles. Surfactants and cosurfactants were grouped in two different combinations to construct pseudoternary phase diagrams. Formulations were selected from(More)
The goals of the current study were to develop and characterize a nanoemulsion of ezetimibe, evaluate its stability, lipid lowering and pharmacokinetic profile. Solubility of the drug was estimated in various oils and surfactants. Existence of nanoemulsion region was confirmed by plotting phase diagrams. Various thermodynamic stability and dispersibility(More)
Silymarin, a flavonolignan derived from Silybum marianum, possesses diverse pharmacological activities, including hepatoprotective, antioxidant, anti-inflammatory, anticancer, and cardioprotective. Although clinical trials have shown silymarin is safe at high doses (>1500 mg/day) in humans, the pharmacokinetic studies over the past three decades related to(More)
The objective of our investigation was to design a thermodynamically stable and dilutable nanoemulsion formulation of Ramipril, with minimum surfactant concentration that could improve its solubility, stability and oral bioavailability. Formulations were taken from the o/w nanoemulsion region of phase diagrams, which were subjected to thermodynamic(More)
Ritonavir is an antiretroviral drug characterized by low solubility and high permeability which corresponds to BCS class II drug. The purpose of the study was to develop solid dispersion by different methods and investigate them for in vitro and in vivo performance for enhancing dissolution and bioavailability, respectively. Since the drug possesses(More)
The aims of this investigation were to determine the distribution in the gastrointestinal (GI) tract of Eudragit S-100 encapsulated colon-specific sodium alginate microspheres containing 5-fluorouracil (5-FU) in rats, and to perform pharmacokinetic and pharmacodynamic studies. Comparisons were with a control immediate-release (IR) formulation of 5-FU. 5-FU(More)
IMPORTANCE OF THE FIELD The buccal drug delivery system has been accepted as a potential non-invasive route of drug administration, with the advantages of avoidance of the first-pass metabolism, sustained therapeutic action and better patient compliance. However, transmucosal delivery of drugs by means of the buccal route is still very challenging. The main(More)
To make the native LHRH immunogenic, a multimer of LHRH interspersed with T non-B peptides (r-LHRH-d2) was expressed as recombinant protein in Escherichia coli. The expression level of the recombinant protein was around 15% of the total cellular protein and it aggregated as inclusion bodies. Inclusion bodies from the bacterial cells were isolated and(More)