Sciences of Pharmacy
Open Access

Sciences of Pharmacy

sciphar@etflin.com (Managing Editor)
Preclinical and clinical drug developmentDrug deliveryPharmaceutical formulationPharmacodynamicsPharmacokineticsDrug metabolismPharmacogeneticsGene-based therapyCell-based therapyProtein-based therapyDrug classesDrug nomenclatureDrug-drug interactionAdverse drug reactionDrug toxicityPharmacovigilancePharmacoepidemiologyPharmacoeconomicsClinical pharmacy

Official Affiliation

Affiliation logo

Volume 2 Issue 3

Showing 9 Articles

RESEARCH ARTICLE

  • Psychotropic Drugs Used in Psychiatry Outpatient Department: A Cross-Sectional Drug Utilization Research
    research article

    Psychotropic Drugs Used in Psychiatry Outpatient Department: A Cross-Sectional Drug Utilization Research

    Hiteswar Saikia, Mustakim Ahmed, Anju L. Saikia, Daisy Phukan

    Mental and behavioral disorders are common around the world. Pharmacotherapy, psychotherapy, and psychosocial rehabilitation are three treatment components for these disorders. Drug therapy is an essential part of the comprehensive treatment of these diseases. Their use pattern in psychiatric practice has changed dramatically in recent years. Mental disorders require long-term treatment. Therefore, it is crucial to study the prescribing practices of these groups of drugs. This study aims to assess drug use patterns using the WHO/INRUD Core Prescribing Indicators. Patients of both genders and ages with mental illness and prescription psychiatric drugs were evaluated from the outpatient department of the Psychiatry Unit (OPD). The prescription data were collected and analyzed using the indicators recommended by the WHO/INRUD. The data were analyzed using Microsoft Excel-2007. The percentage and average values of the variables were compared. A total of 655 prescriptions were analyzed. Male patients (54.96%) were more than women (45.04%). The morbidity profile included schizophrenia (37.86%), alcohol use disorder (18.78%), major depressive disorder (11.30%), anxiety disorder (10.23%), bipolar disorder (4.88%), and others (16.95%). The newer antipsychotic were the most commonly prescribed drugs (particularly olanzapine), along with a central anticholinergic (trihexyphenidyl) and a benzodiazepine (lorazepam). The percentage of drugs prescribed with generic names was 39.80%, and that of drugs prescribed by NLEM was 48.49%. The average number of drugs prescribed per prescription was 2.58. This study's Index of Rational Prescribing (IRDP) was 3.87, whereas the optimal score was 5. Prescriptions were complete, and principles of rational prescribing were followed, except for a low generic prescribing rate.

    Sciences of Pharmacy

    6 Jul 2023
    10 pages
  • Phytochemical Analysis, In-vitro, and In-silico Antibacterial Activity of Stembark Extract of Anogeissus leiocarpus (DC) Guill and Perr
    research article

    Phytochemical Analysis, In-vitro, and In-silico Antibacterial Activity of Stembark Extract of Anogeissus leiocarpus (DC) Guill and Perr

    Mubarak Muhammad Dahiru, AbdulAzeez Mumsiri Abaka, Neksumi Musa

    Bacterial infections subsequently leading to antibiotic resistance has been a leading cause of mortality and morbidity worldwide especially in developing countries with high poverty rate and poor healthcare system. Thus, prompting the prospect in alternative therapy such as medicinal plants. In the present study, we evaluated the antibacterial action of stem bark extract of Anogeissus leiocarpus (AL) Guill and Perr. as applied in folkloric medicine for antibacterial purposes. The phytochemicals present in the plant extract were identified and quantified, followed by the determination of the antibacterial effects of the extract against Escherichia coli and Staphylococcus aureus. Molecular docking study was carried out to ascertain the inhibitory effects of compounds from AL against bacterial enzymes. Alkaloids (7.17% ±0.60), saponins (11.33% ±3.18), and flavonoids (31.01% ±4.04) were detected. A maximum ZI was observed for E. coli compared to S. aureus at the highest extract concentration (100 mg/mL) with amoxicillin having superior ZI at 50 mg/mL concentration. The MIC against E. coli and S. aureus were 12.5 mg/mL and ≤ 6.25 mg/mL respectively while the MBC was>100 mg/mL and 100 mg/mL respectively. Among the identified compounds, IX exhibited the least binding affinity (BA) (7.2 kcal/mol) and inhibition constant (Ki) (5 µM) against UDP-N-acetylglucosamine Enolpyruvyl Transferase (Mur A) compared to all the other targets. AL demonstrated antibacterial activity evidenced by the bacterial growth inhibition, bactericidal potential, and in-silico study revealing high affinity of the bacterial enzymes for the identified compounds, thereby supporting the acclaimed antibacterial use of the plant in folkloric medicine.

    Sciences of Pharmacy

    5 Jun 2023
    14 pages
  • research article

    Exploring the Antiepileptic Potential of Amaranthus spinosus: An Experimental Study in Albino Mice

    Mus'ab Usman Abba, Sunusi Usman, Muslim Muhammad Ahmad, Albashir Tahir, Aminu Kura Umar

    About 60% of the world population relies on herbal medicine, and 80% depend almost entirely on it for their primary healthcare. Many of these herbs are rich in phytochemicals, thus valuable as potential sources of drugs. Amaranthus spinosus is a vegetable and ornamental plant used in African folklore to treat several illnesses. This study aimed to investigate the antiepileptic potential of the methanol leaf extract of Amaranthus spinosus in albino mice. Preliminary phytochemical screening and acute toxicity studies were conducted using standard methods. Anticonvulsant studies were conducted using chemo-shock models (pentylenetetrazole (PTZ) - and strychnine (STR)-induced seizures) in mice. Phytochemical screening has revealed the presence of terpenoids, tannins, saponins, alkaloids, anthraquinones, carbohydrates, cardiac glycosides, and flavonoids. Additionally, the acute toxicity studies of the extract revealed that the extract is safe in mice at 2000 mg/kg. The extract at 400 and 800 mg/kg produced a significant (p<0.05) delay in the mean onset of seizures, decreased the duration of seizures induced by PTZ in a dose-dependent manner, and protected the mice. The extract showed insignificant protection against strychnine-induced seizures in mice. This could serve as a scientific basis for further evaluation of the plant’s potential in managing epilepsy, which can lead to the discovery of an effective antiepileptic agent with fewer side effects.

    Sciences of Pharmacy

    5 Aug 2023
    7 pages
  • Quality Control of Herbal Drug (Paxherbal Bitter Tea) Via Thin-Layer Chromatography and Phytoconstituent Analysis
    research article

    Quality Control of Herbal Drug (Paxherbal Bitter Tea) Via Thin-Layer Chromatography and Phytoconstituent Analysis

    Tunde Ayobami Owolabi, Emmanuel Amodu, James Danga

    The effectiveness of any herbal medication depends on the presence or absence of pharmacologically active phytocompounds. These ingredients are significantly affected by the quality control system espoused during and after manufacturing processes and the operation of such pharmaceuticals. Thin-layer chromatography (TLC) is a quality control parameter suitable to identify and codify substances predicated on their distinctiveness and uniformity, giving an identity for such substances. Paxherbal Bitter Tea is a polyherbal medicine harnessed as an anti-diabetes medicine. This study assessed the distinguishable phytoconstituents present and evolved attribute profiles (TLC) for the herbal (Paxherbal Bitter Tea) to serve as a quality control check during manufacturing for consistency and market identity. Qualitative phytochemical and chromatographic assays were carried out employing standard methodologies. The qualitative test revealed the presence of saponin, steroids, reducing sugar, cardiac glycoside, and terpenoids, and the finger-print chromatograms after progression with n-hexane: ethyl acetate (9:1) flaunted three dissimilar elements under ultraviolet light at 365 nm and five spots, when dotted with 20% methanolic sulphuric acid under visible light. In this study, we developed an identity profile for Paxherbal Bitter Tea via its unique chemical biographies, which can be exercised in verifying the quality and consistency of the herbal product.

    Sciences of Pharmacy

    28 Aug 2023
    5 pages
  • Efficacy of Sunscreen Gel Infused with Giant Tiger Prawn (Penaeus monodon) Head Extract
    research article

    Efficacy of Sunscreen Gel Infused with Giant Tiger Prawn (Penaeus monodon) Head Extract

    Adilah Marwa, Nuraini Ekawati, Hardian Hardian

    Excessive sunlight exposure can lead to various minor skin disorders, including sunburn and the development of chronic skin malignancies. One effective preventive measure against these adverse effects is the use of sunscreen. Sunscreen can be derived from natural sources, such as the astaxanthin compound in giant tiger prawns (Penaeus monodon). This study aimed to formulate a sunscreen gel from giant tiger prawn head extract that meets good physical gel standards. Additionally, the study sought to determine the sun protection factor (SPF), erythema transmission level (%TE), and pigmentation transmission level (%TP) through in-vitro testing. The extraction process involved using coconut oil as a solvent using the maceration method. The resultant extract was then evaluated for SPF, %TE, and %TP values and subsequently formulated into gel variants with extract concentrations ranging from 1% to 10%. The findings of this investigation revealed that the giant tiger prawn head extract exhibited SPF, %TE, and %TP values of 8.0 ± 0.11, 18.8 ± 0.25%, and 21.7 ± 0.73%, respectively, categorizing it as providing maximum protection, facilitating fast tanning, and acting as a sunblock. The gel formula containing 8% giant tiger prawn head extract demonstrated the highest sunscreen potential. In conclusion, this study highlights the promising potential of giant tiger prawn head extract as a natural sunscreen ingredient and identifies the optimal gel formula for effective sun protection.

    Sciences of Pharmacy

    5 Sept 2023
    13 pages

REVIEW

  • Chatbots in Pharmacy: A Boon or a Bane for Patient Care and Pharmacy Practice?
    review

    Chatbots in Pharmacy: A Boon or a Bane for Patient Care and Pharmacy Practice?

    Chusnul Nur Ramadhani

    Chatbots in pharmacies have gained popularity in recent years, potentially revolutionizing patient care and pharmacist workflow. However, whether chatbots are, a boon or a bane for the pharmacy profession remains. This review article aims to comprehensively analyze the literature on chatbots in pharmacy, including their benefits, limitations, and future directions. Findings suggest that chatbots have the potential to improve medication adherence, provide patient education, and streamline pharmacist workflow. However, there are limitations to their use, such as the need for robust natural language processing algorithms and concerns regarding patient privacy and security. Furthermore, the lack of regulatory oversight and standardized development processes may hinder their widespread adoption. Overall, while chatbots have the potential to improve certain aspects of pharmacy practice, caution must be taken to ensure their accuracy and safety. Moreover, chatbots should be viewed as a tool to support pharmacists in providing high-quality patient care rather than replacing the valuable expertise and human connection pharmacists provide. Further research is needed to explore the full potential of chatbots in pharmacy practice and to address the limitations and concerns highlighted in this review.

    Sciences of Pharmacy

    3 Jul 2023
    17 pages
  • Phytochemicals Modify the Action of Cancer Cells Mitochondrial Drug-Resistance Mechanism
    review

    Phytochemicals Modify the Action of Cancer Cells Mitochondrial Drug-Resistance Mechanism

    Subha Ranjan Das

    The genesis and evolution of cancer are known to be significantly influenced by mitochondria, and recent studies have indicated that mitochondrial modifications may potentially contribute to the emergence of treatment resistance. Additionally, drug-resistant cancer cells may also display modifications in mitochondrial metabolism, such as changes in the generation of reactive oxygen species (ROS), which are biological byproducts of mitochondrial respiration. These changes can alter the cell's sensitivity to chemotherapy drugs and contribute to drug resistance. The expression of specific genes or proteins that are crucial in the control of cell growth and survival may be altered by mitochondrial mutations, which may also contribute to medication resistance. Phytochemicals are naturally occurring, biologically active substances found in plants that have been demonstrated to offer a variety of health advantages, including anti-cancer effects. It has been demonstrated that phytochemicals target these altered mitochondrial pathways in cancer cells, increasing the potency of chemotherapy medications and overcoming drug resistance. For instance, it has been demonstrated that some phytochemicals, including curcumin, resveratrol, and quercetin, can block the function of mitochondrial membrane proteins that lead to drug resistance in cancer cells. Other phytochemicals, including berberine and epigallocatechin gallate (EGCG), have been demonstrated to directly interfere with mitochondrial activity, inducing apoptosis (programmed cell death) in cancer cells. Overall, the capacity of phytochemicals to modify the functioning of cancer cell mitochondrial drug-resistance systems is a viable strategy for the creation of novel anti-cancer treatments.

    Sciences of Pharmacy

    14 Jul 2023
    20 pages
  • Comparison of Microsampling and Conventional Sampling Techniques for Quantification of Warfarin in Blood Samples: A Systematic Review
    review

    Comparison of Microsampling and Conventional Sampling Techniques for Quantification of Warfarin in Blood Samples: A Systematic Review

    Callista Andinie Mulyadi, Yahdiana Harahap, Hary Sakti Muliawan

    Warfarin is a vitamin K antagonist (VKAs) anticoagulant associated with interindividual patients’ response to therapy, narrow therapeutic index, and serious adverse drug events. Monitoring ensures efficacy and safety by measuring drug concentration in the bloodstream, which demands blood or plasma samples from patients through conventional sampling. Conventional sampling often requires invasive methods that may be uncomfortable for patients. Microsampling offers an opportunity to reduce the burden of multiple blood sampling on patients and simplifies the process of sample transportation and storage. This systematic review describes conventional and microsampling techniques for quantifying warfarin in human blood samples and the bioanalytical method employed to perform the analysis. Related studies (537) were screened from several databases and narrowed down into 12 eligible articles, which were then used to fulfill the purpose of this review in a narrative form. It is concluded that while there are still limited studies regarding the application of microsampling for warfarin quantification in patients, there has been evidence of comparable plasma and micro samples results, highlighting the potential for future development of routine monitoring using the microsampling technique.

    Sciences of Pharmacy

    6 Jul 2023
    13 pages
  • In Silico Studies of Drug Discovery and Design Against COVID-19 Focusing on ACE2 and Spike Protein Virus Receptors: A Systematic Review
    review

    In Silico Studies of Drug Discovery and Design Against COVID-19 Focusing on ACE2 and Spike Protein Virus Receptors: A Systematic Review

    Matheus prayoga claus, Masteria Yunovilsa Putra, Arry Yanuar

    The emergence of COVID-19 has prompted researchers worldwide to focus on developing drugs that specifically target ACE2 receptors and SARS-CoV-2 Spike Protein receptors. They have embraced an in-silico approach that employs virtual screening, molecular docking, and molecular dynamics to achieve this. This innovative method harnesses existing chemical and natural product databases to identify the most suitable ACE2 receptor blockers and SARS-CoV-2 Spike Protein inhibitors. By following the PRISMA statement guidelines, a thorough literature search yielded 21 relevant articles, forming the basis of this systematic review. The review provides a comprehensive summary and detailed description of the methodologies, protocols, software tools, and noteworthy drug candidates identified in these studies. Additionally, it sheds light on the crucial molecular interactions by presenting an overview of the interacting residues elucidated in the reviewed articles, offering valuable insights for effective therapeutic interventions. Furthermore, the review presents thought-provoking suggestions for future research directions, aiming to inspire and guide advancements in drug development efforts.

    Sciences of Pharmacy

    6 Jul 2023
    13 pages

Journal Key Facts

Publishing Fee (APC)

IDR 1100000

Open Access License

CC BY 4.0

Language

English

Abstracting & Indexing
SintaCAS

Overview

Sciences of Pharmacy (SciPhar) is a peer-reviewed open-access journal of pharmacy owned and published by ETFLIN. We offer a platform and place for researchers and intellectuals, especially the youth, to share their insights and works. SciPhar accepts original article, reviews, mini-review, book-review, technical note, case report, case series, clinical trial, opinion/perspective, conference proceeding, and pictorial essay. Author may submit or suggest another type of scientific manuscript. Sciphar publishes 4 issues a year. Sciences of Pharmacy is affiliated with Faculty of Pharmacy, Universitas Islam Sultan Agung.

Authors from countries other than Indonesia are not charged a publication fee until further notice.

Published 4 issues a year (March, June, September and December) with a continuous publishing model — accepted articles are immediately assigned to the active issue.
Eligible Article Types: Case Report, Case Series, Clinical Trial, Editorial, Letter to Editor, Meta Analysis, Mini Review, Opinion/Perspective, Research Article, Review, Technical Note
Current Issue

Latest Articles

Recently published research articles, review papers, and technical notes from the current volume of the journal.

  • research article

    Griess Assay Evaluation of Nitric Oxide Scavenging by a Multi-Extract Emulgel for Topical Steroid Withdrawal

    Wahyu Bachtiar, Tyssa Mariyana, Nurul Hidayatri, Bheta Sari Dewi, Ayu Werawati

    Topical steroid withdrawal (TSW) is an iatrogenic dermatosis following prolonged topical corticosteroid use, with limited non-steroidal alternatives. This study developed a multi-extract emulgel containing Andrographis paniculata, Tinospora cordifolia, Curcuma longa, and Piper nigrum and screened its nitric oxide (NO)-scavenging activity. Standardized ethanolic extracts were incorporated into eight emulgels (F1–F8) using a 2³ full factorial design, varying A. paniculata (3–5%), T. cordifolia (4–6%), and C. longa (4–6%) with P. nigrum fixed at 10%. Physical characterization showed homogeneous oil-in-water emulgels with pH 5.26–5.90, spreadability 6.7–6.8 cm, and viscosity 12,560–17,120 cP. IC₅₀ values for all formulations exceeded the highest tested concentration (100 µg/mL) without reaching the concentration-response curve plateau, and are reported as > 100 µg/mL compared to 18.48 µg/mL for ascorbic acid. Descriptive ranking placed F4 first, followed by F7 and F8. Exploratory factorial analysis indicated that C. longa levels and the A. paniculata × T. cordifolia interaction drove IC₅₀ variation, showing that higher extract loading did not enhance activity. Because this cell-free assay reflects only direct chemical NO scavenging, findings are strictly preliminary and descriptive. Future validation requires independent runs across an expanded concentration range capturing the full upper plateau. F4 is tentatively proposed as the lead formulation for confirmatory testing and subsequent stability, cell-based, and in vivo studies.

    Sciences of Pharmacy

    1 Nov 2026
    16 pages
  • review

    Solid Lipid Nanoparticles as Delivery Systems for Plant-Derived Phytochemicals in Cancer Therapy: A Systematic Review

    Ade Abiyyatun Mahdiyyah, Mazaya Fadhila, Moh. Firman Irwanto, Ayu Rana Esadini, Wafa Wafa, Alfa Frista Arta, Ira Novita Sari

    Solid lipid nanoparticles (SLNs) have been investigated as lipid-based delivery systems to improve the solubility, stability, bioavailability, and delivery of plant-derived phytochemicals to tumors for cancer therapy. However, the available evidence remains heterogeneous and predominantly preclinical. This systematic review aimed to evaluate the formulation strategies, physicochemical characteristics, and therapeutic applications of phytochemical-loaded SLNs in cancer therapy. The review followed the PRISMA 2020 guidelines. Original research articles in English investigating phytochemical-loaded SLNs for cancer therapy were included. Data on formulation composition, preparation methods, physicochemical properties, drug release, in vitro anticancer activity, pharmacokinetics, biodistribution, and in vivo antitumor efficacy were extracted. Risk of bias was assessed using the SYRCLE tool for animal studies and an adapted checklist for in vitro studies. Thirty one articles were included in the qualitative synthesis. Most SLNs had particle sizes in the nanoscale range, approximately 50-350 nm, with encapsulation efficiencies of 43-99% and sustained-release profiles. Encapsulation generally improved cellular uptake and in vitro cytotoxicity in several cancer models. However, evidence of improved bioavailability, active tumor targeting, and in vivo antitumor efficacy remained limited and heterogeneous. Surface modification enhanced cellular uptake or organ accumulation in some studies, but validated tumor-specific targeting was not consistently demonstrated. Overall, phytochemical-loaded SLNs demonstrate potential as delivery platforms; however, clinical translation requires standardized formulations, robust in vivo studies, comprehensive safety evaluations, and clinical trials.

    Sciences of Pharmacy

    7 Nov 2026
    19 pages
  • research article

    Solid Preservative Preparation from Decolorized Ethanolic Extract of Ginggiang (Leea aequata L.): A 90-Day Subchronic Toxicity Study in Rats

    Purwaniati Purwaniati, Rahmana Emran Kartasasmita, Maria Immaculata Iwo, Muhamad Insanu

    Natural preservatives derived from medicinal plants require a thorough safety evaluation before they can be used in food. Ginggiang has traditionally been used by the Kuta indigenous community in Ciamis, West Java, Indonesia, to preserve palm sap; however, its safety profile has not been evaluated. In this study, a solid preservative preparation was developed from the decolorized ethanolic extract of ginggiang leaves (SPP-ED), and its safety profile was assessed after repeated oral administration. The study focused on subchronic oral toxicity and identified the target organs affected by repeated exposure to SPP-ED. In a 90-day experiment, both male and female Wistar rats received SPP-ED at doses of 45, 150, or 1500 mg/kg body weight per day. Satellite groups were included to evaluate recovery. Various parameters, including behavioral, hematological, biochemical, urinalysis, organ index, and histopathological evaluations, were systematically analyzed. No mortality was observed during the study. The results showed that subchronic exposure to SPP-ED had sex-specific effects: female rats experienced renal alterations, characterized by changes in urinalysis, elevated blood urea nitrogen and creatinine levels, and signs of tubular degeneration. In contrast, male rats exhibited pulmonary changes, including an increased lung-to-body weight ratio, alveolitis, and fibrosis. The D1 dose (45 mg/kg body weight/day) was the lowest dose at which potentially adverse histopathological changes were observed; however, a definitive NOAEL and LOAEL could not be established. Further studies using lower dose levels are warranted to better characterize the dose-response relationship and establish the NOAEL and LOAEL of SPP-ED.

    Sciences of Pharmacy

    2 Nov 2026
    13 pages
  • research article

    Polypharmacy and Potentially Inappropriate Medications (PIMs) in Older Adults with Cardiometabolic Disease: A STOPP/START Criteria-Based Analysis

    Yeni Farida, Rizki Amalia Taufany

    Potentially inappropriate medications (PIMs) are a common issue in older adults. Older adults often require multiple medications to manage cardiometabolic disease. This study aimed to identify potentially inappropriate medications and potential inappropriate omissions using STOPP/START criteria in older adult patients with cardiometabolic disease. We conducted an observational analytical study using retrospective data at a secondary care teaching hospital in Sukoharjo, Central Java. We included older adult patients admitted to the inpatient wards between January and June 2022. The prescriptions were analyzed using the STOPP/START Criteria 2016. The Chi-square test analysis was performed to examine the association between the number of drugs and the occurrence of PIMs. We included 97 geriatric inpatients. All patients received at least 5 drugs during each admission, 35.06% were classified as having hyperpolypharmacy. Among the 97 patients, 36.08% had PIM prescriptions, and 29.89% had PPOs. There was a statistically significant association between the number of drugs and PIMs in older adults. Compared with patients receiving > 10 medications, those receiving 5–10 medications had lower odds of PIM use (OR 0.409, 95% CI 0.173–0.969; p = 0.040). These findings highlight high medication burden as an important marker for targeted medication review in geriatric inpatients, particularly those with cardiometabolic multimorbidity.

    Sciences of Pharmacy

    31 Oct 2026
    10 pages
  • research article

    Comparison of PEG 4000 and 6000 in Solid Dispersion of Tadalafil Prepared by Melting Method

    Moh. Firman Irwanto, Arif Budi Setianto, Ade Abiyyatun Mahdiyyah, Maratun Shoaliha, Amzal Mortin Andas, Ashar Prima, Indah Puspitasari, Andi Tenri Nurwahidah, Fauziah H Wada

    Tadalafil is a BCS Class II drug with very low aqueous solubility, limiting its oral bioavailability. Solid dispersion technology using polyethylene glycol (PEG) is an effective strategy to enhance solubility. This study aimed to compare the effectiveness of PEG 4000 and PEG 6000 as carriers in amorphous solid dispersions of tadalafil prepared by the melting method. Solid dispersions were prepared at weight ratios (tadalafil:polymer) of 1:1, 1:2, 1:3, and 1:4 for both PEG 4000 and PEG 6000 using the fusion technique (70 °C). The formulations were characterized by Powder X-Ray Diffraction (PXRD), Differential Scanning Calorimetry (DSC), and Fourier Transform Infrared (FTIR) spectroscopy. Solubility studies were conducted in distilled water and phosphate buffer (pH 6.8) and analyzed via a validated HPLC method. Solid dispersions with PEG 6000 at a 1:3 ratio (F7) exhibited the highest solubility enhancement, reaching 16.08 ± 0.6 µg/mL in water. For PEG 4000, the 1:2 ratio (F2) was optimal (8.20 ± 1.3 µg/mL). PXRD and DSC analyses confirmed the transformation of crystalline tadalafil into an amorphous state within the polymer matrix. FTIR spectra indicated shifts in N-H and C=O bands, suggesting hydrogen bond formation. In conclusion, PEG 6000 produced a superior solid dispersion for tadalafil compared to PEG 4000. The primary mechanism is the formation of an amorphous system stabilized by hydrogen bonding. This study provides a formulation basis for improving the oral delivery of tadalafil.

    Sciences of Pharmacy

    2 Nov 2026
    9 pages