Optimasi Hidroksipropil Metilselulosa K-4M dan Carbopol® 940 pada Sediaan Patch Dispersi Padat Piroksikam
Authors: Nurahmanto Dwi , Shalikha Nurul , Ameliana Lidya 
Published: March 2018

<p align="center"><strong>Abstrak</strong></p><p align="center"> </p><p>Piroksikam merupakan anti inflamasi non steroid (AINS) turunan oksikam yang berkhasiat sebagai analgesik dan antiinflamasi digunakan untuk pengobatan <em>rheumatoid arthritis</em> dan <em>osteoarthritis</em>. Piroksikam menyebabkan masalah pada saluran cerna dan <em>first pass metabolism</em> yang dapat dihindari dengan cara pemberian transdermal <em>patch.</em> Salah satu komponen <em>patch</em> yaitu polimer yang berfungsi untuk mengontrol kecepatan pelepasan obat dari sediaan. Penelitian ini dilakukan untuk menentukan komposisi terbaik dari kombinasi polimer hidroksipropil metilselulosa (HPMC) dan Carbopol terhadap <em>% moisture content</em> (MC) dan <em>flux</em> pelepasan sediaan transdermal <em>patch </em>dispersi padat piroksikam dengan rancangan formula <em>Simplex Lattice Design</em>. Piroksikam dibuat dalam bentuk dispersi padat dengan pembawa PEG 4000 untuk meningkatkan kelarutannya. Rancangan formula <em>patch</em> dispersi padat piroksikam dibuat dengan menggunakan tiga polimer Etil selulosa:HPMC:carbopol dimana yang divariasikan adalah perbandingan HPMC : Carbopol yaitu 1 : 0 ; 0,5 : 0,5 ; 0 : 1. Hasil uji menunjukkan ketiga formula memenuhi persyaratan keseragaman kadar dengan rentang keseragaman 3,735 – 97,349 %. Hasil juga menunjukkan formula 3 menghasilkan patch yang lebih tebal, pH permukaan patch lebih rendah, nilai % moisture content lebih besar dan nilai flux lebih tinggi dibandingkan formula 2 dan formula 3, Formula 3 mempunyai nilai % moisture content yang memenuhi persyaratan sebesar 6,613% dan nilai <em>flux</em> pelepasa yang paling bagus sebesar 32,562 µg/cm<sup>2</sup>.menit<sup>1/2</sup>. Hasil penelitian juga menunjukkan formula 1 memiliki keseragaman bobot lebih baik dibandingkan formula 2 dan formula 3. Dapat disimpulkan bahwa komposisi optimum dari kombinasi polimer HPMC dan Carbopol pada sediaan <em>patch</em> dispersi padat piroksikam yaitu formula dengan komposisi polimer HPMC sebanyak 0 mg dan Carbopol sebanyak 75 mg.</p><p> </p><p><strong>Kata kunci</strong><em>:</em><em>     </em>Dispersi padat, <em>patch </em>piroksikam, HPMC, Carbopol</p><p align="center"> </p><p align="center"><strong><em>Optimization of Hydroxypropyl Methylcellulose K-4M</em></strong><strong> <em>and  Carbopol® 940 in</em></strong><strong><em> </em></strong><strong><em>Solid Dispersion Piroxicam Patch</em></strong><strong><em></em></strong></p><p align="center"> </p><p align="center"><strong><em>Abstract</em></strong></p><p><strong> </strong></p><p><em>Piroxicam is a non-steroidal anti-inflammatory (NSA) oxysmic derivative as an analgesic and anti-inflammatory agent used for the treatment of rheumatoid arthritis and osteoarthritis. Piroxicam causes problems in the gastrointestinal tract and first pass metabolism that can be avoided by giving transdermal patches. One of the patch components is a polymer that serves to control the speed of drug release from the preparation. The present study was conducted to determine the best composition of the combination of hydroxypropyl methylcellulose (HPMC) and Carbopol polymers against% moisture content (MC) and fluxes release of the pyroxicam dispersion transdermal patch dispersion with the design of the Simplex Lattice Design formula. Piroxicam is prepared in the form of a solid dispersion with a PEG 4000 carrier to increase its solubility. The design of a pyroxicam solid dispersion patch formulation was prepared using three ethyl cellulose polymers: HPMC: carbopol wherein the HPMC ratio is computed: Carbopol is 1: 0; 0.5: 0.5; 0: 1. The test results show the three formulas meet the requirements of uniformity of the content with a uniformity range of 3.735 - 97.349%. the results also show formula 3 resulting in thicker patches, lower patch pH surfaces, greater moisture content values and higher flux values than formula 2 and formula 3, Formula 3 has a moisture content value of 6.613% the finest fl ux flux of 32,562 μg / cm2.menit1 / 2. The results also show that formula 1 has better weight uniformity than formula 2 and formula 3. It can be concluded that the optimum composition of HPMC and Carbopol polymer combinations in the preparation of piroxicam solid dispersion patch is a formula with HPMC polymer composition as 0 mg and Carbopol as much as 75 mg..</em></p><p><strong><em> </em></strong></p><p><strong><em>Key</em></strong><strong><em> </em></strong><strong><em>words</em></strong><em>: </em><em>     </em><em>solid dispersion, piroxicam patch, HPMC, Carbopol</em></p>