Ibuprofen is classified as a BCS class II drug which has low solubility and high permeability. We conducted the formation of the cocrystalline phase of ibuprofen with coformer nicotinamide to increase its solubility. The purpose of this study was to characterize the solid state of cocrystalline phase of ibuprofen-nicotinamide, determine the solubility, and evaluate its in vivo analgesic activity. The cocrystal of ibuprofen-nicotinamide was prepared by a slow evaporation method. The solid-state characterization was conducted by powder X-ray diffraction (PXRD) analysis, differential thermal analysis (DTA), and scanning electron microscopy (SEM). To investigate the in vivo analgesic activity, 28 male Swiss-Webster mice were injected with acetic acid 0.5% following oral administration of intact ibuprofen, physical mixture, and its cocrystalline phase with nicotinamide (equivalent to 26 mg/kg ibuprofen). The number of writhes was counted, and pain inhibition was calculated. All data were analyzed with one-way ANOVA followed by Duncan’s Multiple Range Test (95% confidence interval). The results revealed that a new cocrystalline phase was successfully formed. The solubility testing showed that the cocrystal formation enhanced the solubility significantly as compared with the physical mixture and intact ibuprofen. A significant increase in the analgesic activity of cocrystal ibuprofen-nicotinamide was also confirmed.

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Introduction: This study aimed to explore pharmacy students' and faculty members' perception of online learning at the Faculty of Pharmacy Universitas Andalas. Methods: A survey was administered to 522 undergraduate students, 140 pharmacist professional students, and 51 faculty members via an online electronic survey (Google Forms). Demographic data, online learning experiences, and online learning acceptance of students and faculty members were collected through the survey. Results: Five hundred forty-five students and 36 faculty members of the Faculty of Pharmacy Universitas Andalas participated in this study. Online learning was mostly delivered using Zoom, combined with other media (47.3%). The majority of faculty members and students agreed that online learning could achieve knowledge learning outcomes (LOs), but not attitude LOs and skills LOs. More than a half of students and faculty members perceived that online learning is less effective. Conclusion: In general, the faculty members and students perceived that online learning was not very effective and only considered to achieve some aspects of LOs. As the COVID-19 pandemic is not over yet, it seems that online learning is the reasonable option for conducting learning activities. However, the learning activities and media should be carefully selected to ensure the achievement of all aspects of LOs.

BACKGROUND: The use of medicines in children is usually always under the supervision of parents. Children are considered not to understand the concept of medicine properly. Children's perceptions of medicine are mostly formed from everyday experience. This can have an impact on children's beliefs about medicines which they are also required to be active and rational medicine users. AIM: This study aims to look at children's perceptions and beliefs about medicines, especially in the perspective of medicine efficacy and children's autonomy in using them. METHOD: The study was conducted with an analytical method with a cross-sectional approach using a questionnaire instrument in grade V elementary school children in Padang City, Indonesia. The total sample size obtained was 503 students. RESULTS: Children still think that medicine efficacy is influenced by taste, colour, size, medicine price, a place to buy medicine and how to get medication. 10.1% of children have stored the medicine at home, and 48.5% of children always depends on waited for their parents when they wanted to take medicine. Regarding children's access to medicines, 11.5% of children have bought their own over-the-counter medicine to a pharmacy or medicine store without the parents' knowledge. 31.4% of children have taken medicine at home without the parents' knowledge. CONCLUSION: The results of this study indicate that children's perceptions of medicine efficacy are still very limited. Even though the child has used the medicine alone in a limited way, the child's autonomy in using the medicine still needs to be monitored by the parent. Therefore, this is the reason for the need for medical education given to children, especially in schools as an integral part of health education.

ABSTRAK:Telah dilakukan penelitian tentang pengaruh kombinasi magnesium stearat dan talkum sebagai lubrikan terhadap profil disolusi tablet Ibuprofen. Dari ketiga formula dibuat tablet Ibuprofen dengan metoda granulasi basah. Evaluasi tablet meliputi keseragaman ukuran, keseragaman bobot, kekerasan tablet, waktu hancur, kerapuhan tablet, penetapan kadar dan disolusi. Hasil persen terdisolusi menit ke 60 menunjukkan bahwa disolusi rata-rata berturut-turut adalah 95,7209%, 97,6474% dan 99,9373%. Dan untuk hasil efisiensi disolusi pada menit ke 60 masing-masing formula adalah 82,1089%, 87,5888% dan 90,7635%. Dari data disolusi, formula III yang mempunyai hasil disolusi yang tinggi dibandingkan formula I dan formula II yang disebabkan oleh perbandingan kombinasi magnesium stearat dan talkum sebagai lubrikan lebih kecil kadar magnesium stearatnya.