Erny Sagita, Erny
Departemen Farmasi Universitas Indonesia

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Pembuatan Matriks dari Kompleks Polielektrolit Kitosan Pektin untuk Sediaan Tablet Mengapung Sagita, Erny; Anwar, Effionora; Surini, Silvia
Majalah Ilmu Kefarmasian Vol. 7, No. 3
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Chitosan is a natural cationic polymer. That cationic property makes chitosan can form polyelectrolite complex (PEC) with anionic polymer. In this research, pectin was used as anionic polymer that interact ionically with chitosan. The aim of this research is to produce and characterize chitosan-pectin PEC that would be used as matrix in floating tablet. The solutions of chitosan and pectin 0,3% w/v were mixed in ratio 1:9, 3:7, 1:1, 7:3 and 9:1 with pH of the solution 4,5 and 5,0. The best condition to produce PEC was in pH 5,0 with ratio of chitosan and pectin = 3:7. The differences between chitosan-pectin PEC characteristic and its origin polymer were shown by functional group analysis, thermal analysis, swelling capacity and gel strength. The PEC was then used as matrix in floating tablet.
Pembuatan Sediaan Tablet Mengapung Famotidin Menggunakan Kompleks Polielektrolit Kitosan-Pektin Sebagai Bahan Matriks Sagita, Erny; Anwar, Effionora; Surini, Silvia
Majalah Ilmu Kefarmasian Vol. 8, No. 1
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Floating tablet is one of the drug delivery system retained in the stomach which aims to prolong the lag time of the drug in the stomach. This principle can be used to improve the efficacy of famotidine in treating diseases in the stomach The purpose of this research is to develop dosage form afloat by using Chitosan Pectin Electrolytes (PEC) as matrix then used as the matrix in tablet dosage form with famotidine as a drug model. PEC also combined with hydroxypropylmethylcellulose (HPMC) with different. PEC was also combined with hydroxypropilmethylcellulose (HPMC) in different concentrations. The results of the dissolution study showed that PEC could retard the release of famotidin for 10 hours. PEC in combination with HPMC could retard the release of famotidin for 20 hours. Tablet that only contains PEC as matrix could remain buoyant for 12 hours while tablet with combination of PEC and HPMC could remain buoyant for 24 hours.
Synthesis of Polymer-Drug Conjugates Using Natural Polymer: What, Why and How? Sagita, Erny; Syahdi, Rezi Riadhi; Arrahman, Arif
Pharmaceutical Sciences and Research Vol. 5, No. 3
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For years, natural polymers have played a significant role in pharmaceutical field due to their biocompatibility and biodegradability. In Indonesia, most research in natural polymers focus on application of the polymers as inert pharmaceutical excipients or as drug matrix in micro- and nano- particle. Meanwhile, research about polymers in the world (mostly synthetic polymers) have been progressed to advanced drug delivery system. In this system, the polymer can act as either pharmacologically active molecules, or sophisticated carrier in targeted prodrug delivery system. The latter is called polymer-drug conjugates, a system where the drugs are covalently attached to a polymeric carrier, rather than simply entrapped in polymer matrix. Natural polymers have been one of the materials to use for the carrier due to their biocompatibility and biodegradability. This review article emphasizes the opportunity, challenges and strategies to use natural polymers as carrier in polymer-drug conjugates. Moreover, we also discuss some aspects in regards of the synthesis and analysis, to give some perspectives and encouragement for the Indonesian researcher who are interested in exploring this research field.
Uji Aktivitas Antiproliferasi Formula Liposom Ekstrak Etanol Kunyit (Curcuma domestica) Terhadap Sel Kanker Payudara T47D Pasaribu, Gabriella; Iskandarsyah, Iskandarsyah; Sagita, Erny
Pharmaceutical Sciences and Research Vol. 3, No. 1
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Breast cancer is one of deadliest diseases in world. Turmeric extract was known to have antiproliferative activity. To minimize its toxicity, turmeric extract was encapsulated with liposome, a vesicle lipid bilayer functioned as cancer drug carrier in body. This research aimed to determine encapsulation effect of turmeric ethanol extract against antiproliferative activity in T47D breast cancer cells through in vitro assay. Liposomes was made using thin layer method and particle size was reduced by extrusion. Materials used are phosphatidylcholine, cholesterol, and turmeric extract. Optimization of liposomes was made in three formulations with different concentrations of extract. Most optimal formulation was formulation with minimum amount of extract, judging from physical parameters which have smallest precipitates and longest settling time. Evaluation liposome particle size and zeta potential was used DLS, morphology was used TEM, and entrapment efficiency was used dialysis. Most optimal formulation was tested their antiproliferative activity compared with not encapsulated extracts used 3-(4,5-dimethylazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. There was decrease antiproliferative activity of encapsulated extracts. IC50 encapsulated extracts was 45.762 μg/ml and IC50 extracts was 36.399 μg/ml. Liposome particle size was below 445 nm. Zeta potential was -7.51 mV. Morphology was LUV and MVV. Entrapment efficiency was 63.80%. It could be concluded that encapsulation of turmeric extract into liposome could reduce its toxicity against cancer cells.
Transdermal Delivery of Ketoprofen for Osteoarthritis Treatment and Management: A Literature Review on Current Progression Ramadhani, Dwi Asih; Harahap, Yahdiana; Sagita, Erny; Permata Sari, Kartika Citra Dewi; Andranilla, Rr. Kirana; Trisina, Jessica; Punu, Gabriella Frederika; Ramadon, Delly
Pharmaceutical Sciences and Research Vol. 11, No. 1
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Arthritis, a diverse spectrum of joint disorders, is characterized by chronic pain and inflammation. Osteoarthritis (OA), the most prevalent form, leads to disabling pain, functional limitations, and reduced mobility. Nonsteroidal anti-inflammatory drugs (NSAIDs) are widely used for managing OA pain, with ketoprofen recognized as one of the effective options. However, oral administration of ketoprofen may cause gastrointestinal irritation. Addressing this issue, Transdermal Drug Delivery Systems (TDDS) emerge as a promising alternative route of administration. TDDS facilitates delivery of various drugs through the skin without undergoing first-pass metabolism. Recent studies have centered on enhancing ketoprofen’s transdermal delivery, particularly focusing on different methods (such as patches, gels, electroporation technology, and stratum corneum bypass methods), with microneedles emerging as a promising approach for delivering anti-inflammatory drugs through transdermal routes. This review aims to explore recent advancements in transdermal drug delivery systems for managing OA. The utilization of transdermal ketoprofen presents innovative opportunities for future research and development in novel drug delivery systems.
Formulation of Pectin-Based Double Layer-Coated Tablets Containing Dexamethasone and Probiotics for Inflammatory Bowel Disease Sagita, Erny; Winata, Ronaldo Ongki; Iswandana, Raditya
Pharmaceutical Sciences and Research
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Inflammatory Bowel Disease (IBD) is a chronic inflammatory condition in the colon that includes ulcerative colitis and Crohn’s disease. Dexamethasone is a steroid anti-inflammatory drug that can be used in IBD therapy. This study aims to obtain an optimum formulation of a dexamethasone drug delivery system for IBD treatment and to investigate its release profile based on an in vitro dissolution test. Dexamethasone was formulated as a double-coated tablet in combination with a probiotic L. acidophilus and B. longum mixture (1:1). The core tablets were produced using the wet granulation method, after which they were coated with pectin 4% b/v on the inner coat and a mixture of Eudragit L100 and S100 (1:4) on the outer coat. Three different core tablet formulas were prepared by varying the concentration of probiotics at 0%, 16% and 40% (F1, F2, and F3, respectively). The cumulative drug release of F1, F2 and F3 in HCl 0.1 N pH 1.2 for 2 hours were 42.92 ± 1.55%, 39.41 ± 4.10%, and 39.39 ± 1.63%, respectively, while in the phosphate buffer pH 6.8 they were 102.83 ± 1.56%, 105.08 ± 1.70%, and 98.81 ± 3.37% respectively, after 12 hours. From the results, we conclude that all formulas could be promising candidates for developing colon-targeted drug delivery.