Abstract：
:Dissolution testing for inhalers were previously conducted either on unfractionated drug-carrier powders or drug of specific aerodynamic particle size. In this study, the collection of the full fine particle fraction (FPF) was attempted on a single stage. Capsules containing 30 mg of 2% salbutamol sulfate (SS) was tested to have a FPF of 9 ± 1% using the full set of Andersen cascade impactor (ACI) and a modified Rotahaler® capable of achieving 4.0 kPa pressure drop at 60 L/min air flow rate. A truncated ACI comprising the USP throat, pre-separator, stage 0, stage 4, stage F, polytetrafluoroethylene funnel (TF) and small collection plate (sCP) was found to be capable of achieving a FPF of 9% collected on TF and sCP. An adhesive tape was used to collect the FPF from the TF and sCP and held in place by an enhancer cell in a 200 mL round bottom vessel containing 50 mL Gamble's solution with 0.2 v/v, % Tween 80. Dissolution testing of SS and Seretide® showed burst release of SS and salmeterol while sustained release of fluticasone. This study demonstrated a reproducible method which may be used for evaluation of the full FPF of orally inhaled products.
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Tay JYS,Liew CV,Heng PWSdoi
10.1016/j.ijpharm.2018.04.048subject
Has Abstractpub_date
2018-07-10 00:00:00pages
45-50issue
1-2eissn
0378-5173issn
1873-3476pii
S0378-5173(18)30276-Xjournal_volume
545pub_type
杂志文章abstract：UNLABELLED:The aim of this study is to validate the ability of the disappearance model to predict absorption rates of insulin aspart in pigs. The disappearance model is used as a screening tool to estimate absorption rates after subcutaneous injections in humans or pigs especially of insulin and insulin analogues. The ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2006.09.004
更新日期：2007-02-07 00:00:00
abstract：:An extrusion based 3D printer was used to prepare the semi-solid tablets with different drug loading dosages (75, 100, 125 mg) under ambient temperature. The active pharmaceutical ingredient, theophylline, was uploaded within the hydrogels prepared of hydroxypropyl methylcellulose (HPMC) K4M or E4M. The HPMC concentra...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2020.119983
更新日期：2020-12-15 00:00:00
abstract：:The novel anticancer agent BIBX1382BS is a representative of the human epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors. BIBX1382BS, for parenteral use, is formulated pharmaceutically as a lyophilized product containing 100 mg BIBX1382BS per dosage unit. This in vitro study was performed to establish...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(99)00389-0
更新日期：2000-01-25 00:00:00
abstract：:Several cationic compounds were screened as potential nasal absorption enhancers to increase intranasal absorption of a model drug, fluorescein isothiocyanate labeled dextran (MW 4.4 kDa, FD-4), without nasal membrane damage in rats. Their effects were compared with those of classical enhancers. Various cationic compo...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(99)00100-3
更新日期：1999-08-05 00:00:00
abstract：:Physical and chemical structure of paclitaxel (PTX) was studied after its incorporation into polymeric micelles made of hyaluronic acid (HA) (Mw=15 kDa) grafted with C6 or C18:1 acyl chains. PTX was physically incorporated into the micellar core by solvent evaporation technique. Maximum loading capacity for HAC6 and H...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2014.03.024
更新日期：2014-05-15 00:00:00
abstract：:Ball Milling technique has been used to prepare for the first time Vitis Vinifera extract-silica nanocomposites (VV-SiO2 NCs), which combine the pharmacological effects of the extract with the effectiveness of silica as drug delivery system and active component in the treatment of wound healing. Different contents (1....
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2018.08.057
更新日期：2018-11-15 00:00:00
abstract：:Stimulated acoustic relaxation emissions from maize starch tablets after compression were detected and recorded in the audible region. Stimulation was found to enhance the detected acoustic emission and to maintain recordable acoustic emission level longer. Based on the fact, that the stimulation by a halogen lamp and...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(01)00648-2
更新日期：2001-06-04 00:00:00
abstract：:A new class of surfactants with glycerate headgroups, that form viscous lyotropic liquid crystalline phases in excess water, have been investigated for their potential to provide sustained release matrices for depot drug delivery. Oleyl glycerate and phytanyl glycerate were used as representative surfactants of this n...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2005.11.033
更新日期：2006-02-17 00:00:00
abstract：:The current first line therapy for oral mucositis pain control is unsatisfactory as it results in only a short duration of modest pain relief. Developing mucoadhesive in situ forming formulations to prolong pain relief is challenging due to their complex physicochemical properties and the unique requirements for oral ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2020.119238
更新日期：2020-04-30 00:00:00
abstract：:Many fabrication methods for microneedle (MN) involve harsh conditions and long drying time. This study aims to fabricate a dissolving MN patch in a simple and efficient manner under mild conditions, using a combination of thermal and photo polymerisation. The MN patch was fabricated by pre-polymerisation of vinylpyrr...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2019.118992
更新日期：2020-02-15 00:00:00
abstract：:The purpose of this study was to develop a novel featured and flexible methotrexate (MTX) formulation, in which MTX was physically entrapped and chemically conjugated in the same drug delivery system. A series of poloxamer-MTX (p-MTX) conjugates was synthesized, wherein MTX was grafted to poloxamer through an ester bo...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2015.04.014
更新日期：2015-06-20 00:00:00
abstract：:A simple in vitro method for the detection of precipitation using 96-well microplates and a SpectraMax Plus microtiter plate reader has been developed and described. The method requires only small amount of drug and is, therefore, potentially applicable in early pre-formulation. The method is based on opacity changes ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2005.08.012
更新日期：2005-11-04 00:00:00
abstract：:The purpose of the study is to screen the interactions of fourth generation fluoroquinolone-gatifloxacin with efflux pumps, i.e., P-gp, MRP2 and BCRP. Mechanism of gatifloxacin interaction with efflux transporters may explain its acquired resistance. Such clarification may lead to the development of strategies to over...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2010.05.027
更新日期：2010-08-16 00:00:00
abstract：:The aim of this study was to develop a self-emulsifying drug delivery system (SEDDS) containing the fluoroquinolone antibiotic ciprofloxacin (CIP) exhibiting highly mucus permeating properties and antimicrobial activity in in vitro models. Various SEDDS formulations were developed and evaluated regarding droplet size,...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2018.06.005
更新日期：2018-08-25 00:00:00
abstract：:Safe and efficient delivery of microRNA (miRNA) molecules is essential for their successful transition from research to the clinic setting. In the present study, we have used a bile acid, deoxycholic acid (DA), to modify 1.8 kDa branched polyethylenimine (bPEI1.8) and subsequently investigated gene delivery features o...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2019.05.009
更新日期：2019-06-30 00:00:00
abstract：:Lipid nanoparticles (LNP) based on triglycerides containing high amounts of the amphiphilic lipid lecithin have been proposed as a promising alternative drug delivery system with regard to drug loading capacity. Aim of the present study is to evaluate the influence of lecithin within the lipid matrix (LM) on the cryst...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2005.04.014
更新日期：2005-07-14 00:00:00
abstract：:Injectable in situ-forming gels have received considerable attention as localized drug delivery systems. Here, we examined a poly(ethylene glycol)-b-polycaprolactone (MPEG-PCL) diblock copolymer gel as an injectable drug depot for paclitaxel (Ptx). The copolymer solution remained liquid at room temperature and rapidly...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2010.03.033
更新日期：2010-06-15 00:00:00
abstract：:Rheumatoid arthritis (RA) is an autoimmune disease featured with chronic joint inflammation. Suppression of inflammation is critical to RA treatment and joint protection. In this study, DNA nanodrugs are prepared via the conjugation of NF-κB decoy oligodeoxynucleotides (dODNs) and VCAM-1 targeted peptides (P) onto sel...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2020.119047
更新日期：2020-03-15 00:00:00
abstract：:Solid dispersions of ibuprofen with various phospholipids were prepared, and the effect of phospholipids on the in vitro dissolution and in vivo gastrointestinal toxicity of ibuprofen was evaluated. Most phospholipids improved the dissolution of ibuprofen; dimyristoylphosphatidyl-glycerol (DMPG) had the greatest effec...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2011.11.011
更新日期：2012-01-17 00:00:00
abstract：:The effect of different preparation parameters were analyzed with respect to the rheological and pharmaceutical characteristics of hydrogel blend patches, as transdermal delivery formulation. Mixtures of pectin and gelatin were employed for the production of patches, with adjustable properties, following a two-step ge...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.06.081
更新日期：2013-09-15 00:00:00
abstract：:Naked plasmid DNA is a powerful tool for gene therapy, but it is rapidly eliminated from the circulation after intravenous administration. Therefore, the development of optimized DNA delivery systems is necessary for its successful clinical use. Solid lipid nanoparticles (SLNs) have demonstrated transfection capacity ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2009.10.020
更新日期：2010-01-29 00:00:00
abstract：:The aim of the present work was to study the influence of surface hydrophilicity of biodegradable polymeric nanoparticles on cellular uptake by Caco-2 cells. Poly(D,L-lactide-co-glycolide acid) particles loaded with a fluorescent dye, 3,3'-dioctadecyloxacarbo-cyanine perchlorate (DiO), were prepared by the emulsion-ev...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2009.10.008
更新日期：2010-05-05 00:00:00
abstract：:The pharmacokinetic parameters of nitrendipine were determined in 40 healthy male volunteers and a very high degree of intersubject variability was observed (CV = 39-71%). Since the distribution of nitrendipine to erythrocytes could influence the overall pharmacokinetic variability the correlation between hematocrit a...
journal_title：International journal of pharmaceutics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0378-5173(00)00683-9
更新日期：2001-03-14 00:00:00
abstract：:In this study, the potential of lecithin/chitosan nanoparticles (NPs) as a mucoadhesive colloidal nanosystem for transmucosal delivery of melatonin was investigated. The size, zeta potential and melatonin loading of the lecithin/chitosan NPs were investigated as a function of lecithin type (Lipoid S45, S75 and S100) a...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2009.07.001
更新日期：2009-11-03 00:00:00
abstract：:Progesterone-loaded poly(lactic) acid fibrous polymeric patches were produced using electrospinning and pressurized gyration for intra-vaginal application to prevent preterm birth. The patches were intravaginally inserted into rats in the final week of their pregnancy, equivalent to the third trimester of human pregna...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2020.119782
更新日期：2020-10-15 00:00:00
abstract：:The concept of skin-specific drug delivery with a spatio-temporal control has just recently received concerns in dermatology. Inspired by the progress in smart materials and their perspective application in medicine science, development of stimuli responsive drug delivery systems with skin-specificity has become possi...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章,评审
doi：10.1016/j.ijpharm.2020.120081
更新日期：2021-01-05 00:00:00
abstract：UNLABELLED:To objectively evaluate the performance of new vaginal dosage forms, it is important to determine their time of residence and their distribution. This paper describes the in vivo characteristics of a reference and test product in this situation. METHOD:A randomised cross-over study was performed in the same...
journal_title：International journal of pharmaceutics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.ijpharm.2003.11.006
更新日期：2004-03-01 00:00:00
abstract：:Curcumin is a natural active constituent of Curcuma longa from Zingiberaceae family that shows many different pharmacological effects such as anticancer, antioxidant, anti-inflammatory, antimicrobial and antiviral effect. However, its bioavailability is profoundly limited by its poor water solubility. In this study an...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2019.03.038
更新日期：2019-05-01 00:00:00
abstract：:Nalbuphine is a semi-synthetic opioid indicated for the relief of moderate to severe pain. Dinalbuphine sebacate (DNS) is a prodrug of nalbuphine for which we have developed long-acting lipophilic formulations in a benzyl benzoate/sesame oil mixture for intramuscular (IM) injection. In this study, we found that the in...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2017.08.083
更新日期：2017-10-05 00:00:00
abstract：:Transdermal delivery represents a very attractive administration route that provides various advantages over other methods of administration, including enhanced patient compliance via non-invasive, painless and simple application and reduced side effects. Thereby, the research on suitable drugs for this route continue...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2019.118571
更新日期：2019-10-05 00:00:00
