Bibliografias temáticas / Drug physico-chemical compatibility

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Literatura científica selecionada sobre o tema "Drug physico-chemical compatibility"

Autor: Grafiati

Publicado: 14 de setembro de 2024

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Artigos de revistas sobre o assunto "Drug physico-chemical compatibility"

Sharma, N., and T. Sinderpal. "Sterculia Gum: Chemical Structure, Composition and Physico-Chemical Properties." Asian Journal of Chemistry 32, no. 1 (2019): 1–8. http://dx.doi.org/10.14233/ajchem.2020.22283.

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Physico-chemical properties are crucial characteristics of hydrocolloids as they decide the applicability of them. Rheology of system, flow behaviour and mechanical properties make hydrocolloids suitable for food industry. Modification of consistency or texture properties of functional polymers also controls their sensory characteristics, thereby they become significant essences such as thickener, gelling agents, foaming agent, texture modifier, viscosifier, emulsifier, stabilizer and binder. Industrial and pharmaceutical applications are also controlled by some suitable physico-chemical properties of hydrocolloids. The polysaccharide gum exudates constitute a architecturally distinct class of complex biomacromolecules having unique physico-chemical properties. Due to their good bio/tissue compatibility, non-toxicity, they are extensively used in the field of tissue engineering, drug delivery and wound healing. Chemical and molecular architecture of hydrocolloids in turn controls their physico-chemical and functional properties. Sterculia gum is a substituted rhamnogalacturonoglycan (pectic) type exudate gum used as suspending agent, gelling agents, emulsifier, bulk laxative, dental adhesive, drug delivery agent and wound healing agent. It exhibits high water retention capacity, high viscosity and least solubility. Solutions of sterculia gum are viscoelastic and thixotropic. Sterculia gum has been recommended as effective wound dressing material as it can form a intensely adhesive gel when dispersed in minimum ammount of water. Owing to wide applications and distinctive properties of sterculia gum, present work is an endeavor to summarize the molecular organization, chemical configuration and physico-chemical properties of sterculia gum and the factors affecting physico-chemical properties of sterculia gum.

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Sharma, Shyam Bihari, Suman Jain, and K. Ganesan. "Preformulation Studies of Pralidoxime Chloride for Formulation Development of Microspheres." Journal of Drug Delivery and Therapeutics 9, no. 4-s (2019): 338–42. http://dx.doi.org/10.22270/jddt.v9i4-s.3336.

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Microspheres are one of the novel drug delivery system which possess several applications and are made up of assorted polymers. Microspheres can be defined as solid, approximately spherical particles ranging in size from 1 to 1000 μm range in diameter having a core of drug and entirely outer layers of polymers as coating material. They are made up of polymeric, waxy or other protective materials i.e. biodegradable synthetic polymer and modified natural products such as starches, gums, proteins, fats and waxes. Preformulation is a group of studies that focus on the physicochemical properties of a new drug candidate that could affect the drug performance and the development of a dosage form. This couldprovide important information for formulation design or support the need for molecular modification. Every drug has intrinsic chemical and physical properties which has been consider before development of pharmaceutical formulation. This property provides the framework for drugs combination with pharmaceutical ingredients in the fabrication of dosage form. Objective of preformulation study is to develop the elegant, stable, effective and safe dosage form by establishing kinetic rate profile, compatibility with the other ingredients and establish Physico-chemical parameter of new drug substances. The purpose of the present study was to systematically investigate some of the important physicochemical properties of pralidoxime chloride for preparation of microspheres. The physicochemical properties such as solubility, pKa, dissolution, melting point, assay development, excipient compatibility etc. of pralidoxime chloride was carried out. Before selection of excipients, the Preformulation study of drug pralidoxime is completed for successful formulation of microspheres. The result of Preformulation studies shows good flow properties, excipient compatibility, solubility efficiency and melting point. From this study we concluded that pralidoximewith HPMC and EC can be used to formulate pralidoxime microspheres for modified release. Keywords: Microspheres, Preformulation, Pralidoxime chloride, Physico-chemical parameter.

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Tiwari, Sandip Prasad, and Gali Vidyasagar. "Identification, Characterization and Drug-Excipient Compatibility of Diltiazem Hydrochloride by Physico-Chemical Techniques." UK Journal of Pharmaceutical Biosciences 2, no. 5 (2014): 49. http://dx.doi.org/10.20510/ukjpb/2/i5/91134.

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Bruni, Giovanna, Vittorio Berbenni, Chiara Milanese, Alessandro Girella, and Amedeo Marini. "Drug-excipient compatibility studies in binary and ternary mixtures by physico-chemical techniques." Journal of Thermal Analysis and Calorimetry 102, no. 1 (2009): 193–201. http://dx.doi.org/10.1007/s10973-009-0382-z.

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Vivekanandan S, Raghunandan Reddy K, and Venkatesan P. "Preformulation characterization towards design and development of dexibuprofen loaded nanoparticles." International Journal of Research in Pharmaceutical Sciences 11, no. 4 (2020): 8138–45. http://dx.doi.org/10.26452/ijrps.v11i4.4892.

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The intention of the current study was to investigate the Physico-chemical characteristics of Dexibuprofen loaded nanoparticles. Dexibuprofen is an NSAID - non-steroidal anti-inflammatory drug intended for the treatment of rheumatoid arthritis related symptoms. In current market trends, the tablets and capsule dosage forms captures major market contribution. A systematic evaluation of physico chemical characteristics of the drug powder, it’s characteristics was performed as a basic step at the start of formulation development of the dosage form. The formulation development approach is decided based on the above data. Dexibuprofen nanoparticles was developed by an Ionotropic pre gelation technique comprising Chitosan, Calcium chloride and Sodium alginate as coating material. The preformulation evaluation of Dexibuprofen and it’s compatibility with selected excipients was performed to design an appropriate strategy for the development of Dexibuprofen modified release nanoparticles. The parameters like melting point, pKa, solubility, dissolution and assay method development, solid state stability, solution stability, flow properties, bulk density, microscopical assessment, entrapment efficiency, excipients compatibility, and nanoparticles release profile were evaluated. The results of this study, along with the experimental values, will be discussed in detail.

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Mohamed, Amir Ibrahim, Amal Abd-Elaal El-Khamery, Mohamed Ismail Herry, and Alaa Ibrahim Mohamed. "Compatibility Determination of Drug-Polymer, Drug-Excipient & Drug-Intravenous Admixtures Using Chemometric-assisted UVspectrophotometry." Current Pharmaceutical Analysis 16, no. 2 (2020): 125–42. http://dx.doi.org/10.2174/1573412914666181011142351.

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Purpose: A new multivariate chemometric approach was developed for fast and economic compatibility determinations of ranitidine hydrochloride (as model drug) with certain pharmaceutical; polymers (Alginate & Chitosan), excipient (Lactose) and intravenous fluids (Dextrose, Ringer & Dextrose/ Ringer). Binary mixtures of the drug and each item were prepared and investigated by chemometric- assisted UV- spectrophotometry as well as by HPLC reference method. Methods: Five drug concentration levels (0.004-0.025mg/ml) of test-mixtures were used and the average drug recovery percent after two and seven days of storage from initial concentration was determined. Physico-chemical techniques including DSC, XRD, & FTIR were also performed to investigate the nature of the observed drug-additive interactions. Results: UV-chemometric and HPLC results showed that ranitidine stability in mixture aqueous solutions appears to be concentration dependent. The ranitidine content remained greater than 90% in alginate & chitosan test mixtures at all used drug concentrations (0.004-0.025mg/ml), while in lactose, dextrose, ringer & dextrose/ringer test mixtures fell below 90% at low drug concentrations (0.004- 0.009mg/ml), which suggests more ranitidine compatibility with alginate & chitosan rather than the other additives. Conclusion: The developed chemometric method, employing UV absorbance data successfully used as simple, rapid, and economic alternative tool in drug-additive compatibility determinations.

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Yadav, RK, Satyam Prakash, K. Yadav, NK Yadav, and M. Mostafa. "Physico-chemical evaluation of Gastroretentive Ranitidine Hydrochloride: An Anti-Ulcer Drug." Janaki Medical College Journal of Medical Science 3, no. 2 (2016): 4–12. http://dx.doi.org/10.3126/jmcjms.v3i2.16075.

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Background and Objectives: The prevention and treatment of peptic ulcers has become an important challenge in the current medicine world. Modern progress in novel drug delivery system aims to improve the efficacy of the drug molecule by formulating a dosage form of RHCL. One of the most feasible approaches for achieving a prolonged and predictable drug delivery profile in GI tract is to control the gastric residence time. Therefore, a multi-unit gastro retentive dosage form of RHCL capable of floating on simulated gastric fluid for more than 12 hours was formulated and evaluated.Materials and Methods: Nine batches of the light liquid paraffin entrapped emulsion gel beads were prepared by a new emulsion gelation technique using sodium alginate and xanthan gum as polymers. The polymeric solution was extruded into Calcium chloride solution by the use of 21G needles. Morphology of beads, drug content, drug entrapment efficiency, floating lag time and buoyancy were studied. Compatibility study of Ranitidine HCl with polymers used in the formulation was performed using DSC and FT-IR.Results: Mean surface diameter were between 1.220 ± 2.259% (F1) to 1.230 ± 2.316% (F9) and floating lag time were between 6 minute (F9) to 11 minute (F1). All formulations were buoyant for more than 12 hours in simulated gastric fluid at 37ºC. The drug content and drug entrapment efficiency among the formulations were between 17.48%~19.68% and 71.06% ~84.32% respectively. Formulation F1 showed lowest drug content and drug entrapment efficiency while F9 showed highest drug content and drug entrapment efficiency. F4 showed most acceptable sustained drug release profile.Conclusion: The gastro retentive drug delivery system designed as floating beads was found to be satisfactory drug delivery system for Ranitidine HCl to improve the bioavailability of the drug. Janaki Medical College Journal of Medical Sciences (2015) Vol. 3 (2): 4-12

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Kamin, Wolfgang, Astrid Schwabe, and Irene Krämer. "Inhalation solutions – which one are allowed to be mixed? Physico-chemical compatibility of drug solutions in nebulizers." Journal of Cystic Fibrosis 5, no. 4 (2006): 205–13. http://dx.doi.org/10.1016/j.jcf.2006.03.007.

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Kamin, Wolfgang, Frank Erdnüss, and Irene Krämer. "Inhalation solutions — Which ones may be mixed? Physico-chemical compatibility of drug solutions in nebulizers — Update 2013." Journal of Cystic Fibrosis 13, no. 3 (2014): 243–50. http://dx.doi.org/10.1016/j.jcf.2013.09.006.

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Ronowicz-Pilarczyk, Joanna. "Compatibility Study of Ketoprofen With Selected Excipients Used in Solid Dosage Forms: Experimental Design Approach." Acta Poloniae Pharmaceutica - Drug Research 80, no. 5 (2023): 717–22. http://dx.doi.org/10.32383/appdr/172622.

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A good understanding of the physico-chemical characteristics of a drug substance and excipients is necessary to obtain a safe and effective drug dosage form. Based on the current recommendations of the regulatory agencies (EMA, FDA) regarding the implementation of the Quality by Design concept at the drug product development stage, this article is focused on the application of the experimental design approach at the preformulation studies. The purpose of this work was the implementation of experimental design methodology in a compatibility study between ketoprofen (non-steroidal anti-inflammatory drug) and selected solid dosage forms excipients. The fractional factorial design was used to generate a matrix of multi-component mixtures of ketoprofen and selected excipients. In order to accelerate any chemical incompatibilities, the received mixtures were exposed to elevated temperature and humidity (60°C/75% RH) in a climate chamber for 3 weeks. The ketoprofen-excipients compatibility was studied by means of the RP-HPLC method. It was confirmed that the type of disintegrant had a strong impact on ketoprofen degradation. The incompatibility in mixtures of ketoprofen with sodium starch glycolate was indicated. According to literature data, it may be the result of a decrease in crystallinity and thus a decrease in the stability of ketoprofen in the presence of sodium starch glycolate. The effects of the other types of excipients were statistically insignificant (p > 0.05). The applied experimental design methodology allowed for a rational selection of optimal excipients and thus, this approach may support significantly decision-making in the pharmaceutical industry.

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