Academic literature on the topic 'Microparticulate dosage'

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Journal articles on the topic "Microparticulate dosage"

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Kokate, Shekhar, and Punit R. Rachh. "Microparticulate hot melt pallets technology: a review." Journal of Drug Delivery and Therapeutics 8, no. 6-s (December 15, 2018): 377–83. http://dx.doi.org/10.22270/jddt.v8i6-s.2131.

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Recent advances in novel drug delivery (NDDS) aims to enhance safety and efficacy of drug molecule by formulating a convenient dosage form for ease of administration and to achieve better patient compliance. Depending upon functionality, it is possible to design different dosages forms which fulfill the therapeutic needs of the patient with improved bioavailability of poorly water soluble drugs, taste masking and preparation of oral dispersible tablets, MUPS and multiple unit formulations. The hot-melt technology is one of the most commonly used method, is devoid of solvent use, solvent disposal, solvent evaporation and solvent treatment is not required. Keywords: Multiple Unit Pallet Systems, Lipid, Solubility, Hot-Melt Technology, Bioavailability, Absorption of Drug.
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Chikukwa, Mellisa T. R., Roderick B. Walker, and Sandile M. M. Khamanga. "Formulation and Characterisation of a Combination Captopril and Hydrochlorothiazide Microparticulate Dosage Form." Pharmaceutics 12, no. 8 (July 30, 2020): 712. http://dx.doi.org/10.3390/pharmaceutics12080712.

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Cardiovascular diseases such as hypertension and cardiac failure in South African children and adolescents are effectively managed long term, using a combination treatment of captopril and hydrochlorothiazide. The majority of commercially available pharmaceutical products are designed for adult patients and require extemporaneous manipulation, prior to administration to paediatric patients. There is a need to develop an age appropriate microparticulate dosing technology that is easy to swallow, dose and alter doses whilst overcoming the pharmacokinetic challenges of short half-life and biphasic pharmacokinetic disposition exhibited by hydrochlorothiazide and captopril. An emulsion solvent evaporation approach using different combinations of polymers was used to manufacture captopril and hydrochlorothiazide microparticles. Design of experiments was used to develop and analyse experimental data, and identifyoptimum formulation and process conditions for the preparation of the microparticles. Characterisation studies to establish encapsulation efficiency, in vitro release, shape, size and morphology of the microparticles were undertaken. The microparticles produced were in the micrometre size range, with an encapsulation efficiency >75% for both hydrochlorothiazide and captopril. The microparticulate technology is able to offer potential resolution to the half-life mediated dosing frequency of captopril as sustained release of the molecule was observed over a 12-h period. The release of hydrochlorothiazide of >80% suggests an improvement in solubility limited dissolution.
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Fathima, A., B. N. Vedha Hari, and D. Ramya Devi. "Development of Microparticulate Sustained Release Dosage Form of Emtricitabine: An Anti-HIV Drug." Asian Journal of Chemistry 26, no. 9 (2014): 2604–10. http://dx.doi.org/10.14233/ajchem.2014.15757.

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Sah, Shiv Kumar, Mrs Vasia, Rajkumar Prasad Yadav, Sunny Patel, and Mukesh Sharma. "Microsphere Overview." Asian Journal of Pharmaceutical Research and Development 9, no. 4 (August 14, 2021): 132–40. http://dx.doi.org/10.22270/ajprd.v9i4.1003.

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The aim of developing continuous or managed delivery mechanisms has always been to minimise dosage duration, resulting in improved patient compliance and less side effects. Microspheres have been shown to minimise dosage, side effects, administration frequency, and the risk of dose dumping. As a result, patient compliance has improved.Targeted drug delivery mechanisms aim for a specific location in the body to maximise drug concentration in a specific tissue or organ, thus improving the drug's therapeutic effectiveness. Microspheres have promised targeted or managed drug distribution in the body for decades, and have shown to be superior to traditional drug delivery. The goal of this review different aspects of the microparticulate drug delivery system along with types of microspheres and methods of preparation and different applications as targeted or controlled drug delivery system.
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Lukova, Paolina, Plamen Katsarov, and Bissera Pilicheva. "Application of Starch, Cellulose, and Their Derivatives in the Development of Microparticle Drug-Delivery Systems." Polymers 15, no. 17 (August 31, 2023): 3615. http://dx.doi.org/10.3390/polym15173615.

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Micro- and nanotechnologies have been intensively studied in recent years as novel platforms for targeting and controlling the delivery of various pharmaceutical substances. Microparticulate drug delivery systems for oral, parenteral, or topical administration are multiple unit formulations, considered as powerful therapeutic tools for the treatment of various diseases, providing sustained drug release, enhanced drug stability, and precise dosing and directing the active substance to specific sites in the organism. The properties of these pharmaceutical formulations are highly dependent on the characteristics of the polymers used as drug carriers for their preparation. Starch and cellulose are among the most preferred biomaterials for biomedical applications due to their biocompatibility, biodegradability, and lack of toxicity. These polysaccharides and their derivatives, like dextrins (maltodextrin, cyclodextrins), ethylcellulose, methylcellulose, hydroxypropyl methylcellulose, carboxy methylcellulose, etc., have been widely used in pharmaceutical technology as excipients for the preparation of solid, semi-solid, and liquid dosage forms. Due to their accessibility and relatively easy particle-forming properties, starch and cellulose are promising materials for designing drug-loaded microparticles for various therapeutic applications. This study aims to summarize some of the basic characteristics of starch and cellulose derivatives related to their potential utilization as microparticulate drug carriers in the pharmaceutical field.
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Gupta, Manish Kumar, Deepak Prakash, and Brahmeshwar Mishra. "Biodegradable microparticulate drug delivery system of diltiazem HCl." Brazilian Journal of Pharmaceutical Sciences 48, no. 4 (December 2012): 699–709. http://dx.doi.org/10.1590/s1984-82502012000400014.

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The efficacy of a drug in a specific application requires the maintenance of appropriate drug blood level concentration during a prolonged period of time. Controlled release delivery is available for many routes of administration and offers many advantages (as microparticles and nanoparticles) over immediate release delivery. These advantages include reduced dosing frequency, better therapeutic control, fewer side effects, and, consequently, these dosage forms are well accepted by patients. Advances in polymer material science, particle engineering design, manufacture, and nanotechnology have led the way to the introduction of several marketed controlled release products and several more are in pre-clinical and clinical development. The objective of this work is to prepare and evaluate diltiazem HCl loaded albumin microparticles using a factorial design. Albumin (natural polymer) microparticles were prepared by emulsion heat-stabilization method. Selected formulations were characterized for their entrapment efficiency, particle size, surface morphology, and release behavior. Analysis of variance for entrapment efficiency indicates that entrapment efficiency is best fitted to a response surface linear model. Surface morphology was studied by scanning electron microscopy. Scanning electron microscopy of the microparticles revealed a spherical, nonporous and uniform appearance, with a smooth surface. The geometric mean diameter of the microparticles was found to be 2-9 µm, which more than 75% were below 3.5 µm and drug incorporation efficiency of 59.74 to 72.48% (w/w). In vitro release profile for formulations containing diltiazem HCl loaded BSA microparticles with heat stabilization technique shows slow controlled the release of the drug up to 24 hours. The release pattern was biphasic, characterized by an initial burst effect followed by a slow release. All selected microparticles exhibited a prolonged release for almost 24 hours. On comparing regression-coefficient (r²) values for Hixson Crowel, Higuchi and Peppas kinetic models, different batches of microparticles showed Fickian, non-Fickian, and diffusion kinetics. The release mechanism was regulated by D:P ratio. From the statistical analysis it was observed that as the drug:polymer (D:P) ratio increased, there was a significant increase in the encapsulation efficiency. Based on the particle size, entrapment efficiency and physical appearance, DTM-3 formulations were selected for in vivo release study and stability study. The in vivo result of drug loaded microparticles showed preferential drug targeting to liver followed by lungs, kidneys and spleen. Stability studies showed that maximum drug content and closest in vitro release to initial data were found in the formulation stored at 4 ºC. In present study, diltiazem HCl loaded BSA microparticles were prepared and targeted to various organs to satisfactory level and were found to be stable at 4 ºC.
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Shah, Pervaiz Akhtar, Sajid Bashir, Muhammad Ahsan, Nasir Abbas, Muhammad Zubair Malik, and Hafiz Muhammad Irfan Nazar. "Bioequivalence evaluation of new microparticulate capsule and marketed tablet dosage forms of lornoxicam in healthy volunteers." Tropical Journal of Pharmaceutical Research 15, no. 4 (May 10, 2016): 877. http://dx.doi.org/10.4314/tjpr.v15i4.30.

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Kumar, Tarun, Rimpy Pahwa, and Munish Ahuja. "Grewia asiatica linn. root extract loaded suspension, microparticulate and nanosuspension dosage form: fabrication, characterization and anthelmintic evaluation." ACTA Pharmaceutica Sciencia 60, no. 4 (2022): 363. http://dx.doi.org/10.23893/1307-2080.aps6024.

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Svedberg, Anna, and Tom Lindström. "A pilot web former designed to study retention-formation relationships." Nordic Pulp & Paper Research Journal 25, no. 2 (May 1, 2010): 185–94. http://dx.doi.org/10.3183/npprj-2010-25-02-p185-194.

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Abstract A pilot-scale fourdrinier former has been developed for the purpose of investigating the relationship between retention and paper formation (features, retention aids, dosage points, etc.). The main objective of this publication was to present the R-F (Retention and formation)-machine and demonstrate some of its fields of applications. For a fine paper stock (90% hardwood and 10% softwood) with addition of 25% filler (based on total solids content), the relationship between retention and formation was investigated for a microparticulate retention aid (cationic polyacrylamide together with anionic montmorillonite clay). The retention-formation relationship of the retention aid system was investigated after choosing standardized machine operating conditions (e.g. the jet-to-wire speed ratio). As expected, the formation was impaired when the retention was increased. Since good reproducibility was attained, the R-F (Retention and formation)-machine was found to be a useful tool for studying the relationship between retention and paper formation.
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Ghosh, Amitava, and Prithviraj Chakraborty. "Formulation and Mathematical Optimization of Controlled Release Calcium Alginate Micro Pellets of Frusemide." BioMed Research International 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/819674.

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Objective. Frusemide loaded calcium alginate micropellets, an oral microparticulate delivery system, was statistically optimized exhibiting prolonged therapeutic action minimizing its adverse effects.Methods. Ionotropic Gelation technique was adopted employing 32Factorial designs and keeping the entire process free from organic solvents. Physicochemical and the release characteristics of the prepared formulations were studied, keeping variations only in sodium alginate (primary polymer) and Acrycoat E30D (copolymer) dispersion.Result. Sodium alginate was predominant over Acrycoat E30D in all batches. Nonadditives or interaction was observed to be insignificant. Multiple regressions produced second-order polynomial equation, and the predictive results obtained were validated with high degree of correlation. Thein vivostudy applauded that optimized calcium alginate micropellets of frusemide can produce a much greater diuretic effect over an extended period of 24 hours.Conclusion. This study reveals that the potential of a single dose of the mathematically optimized micro pellets of frusemide formulation is sufficient in the management of peripheral edema and ascites in congestive heart failure and as well in the treatment of chronic hypertension, leading to better patient compliance, and can be produced with minimum experimentation and time, proving far more cost-effective formulation than the conventional methods of formulating dosage forms.
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Dissertations / Theses on the topic "Microparticulate dosage"

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Ghosh, Amitava. "Development and evaluation of frusemide loaded calcium alginate microparticulate dosage form." Thesis, University of North Bengal, 2007. http://hdl.handle.net/123456789/936.

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Books on the topic "Microparticulate dosage"

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Microparticulate dosage form for non-steroidal anti-inflammatory drugs. In vitro and in vivo evaluation. . LAP LAMBERT Academic Publishing AG & Co. KG, Dudweiler Landstr. 99, 66123 Saarbrücken, Germany, 2010.

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