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1.
Prostaglandins Other Lipid Mediat ; 170: 106801, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37984794

RESUMO

OBJECTIVE: This study was designed to investigate the therapeutic effect of Cangfu Daotan Decoction (CDD) combined with drospirenone and ethinylestradiol tablets (II) on patients with polycystic ovary syndrome (PCOS). METHODS: Patients with PCOS were gathered from September 2020 to September 2022 and divided into the experimental group (n = 36), treated with CDD combined with drospirenone and ethinylestradiol tablets (II), and the control group (n = 41), received only drospirenone and ethinylestradiol tablets (II). Levels of sex hormone, obesity, blood glucose, blood lipid were detected and compared between the two groups pre- and post-treatment. The treatment efficacy, Traditional Chinese Medicine (TCM) syndrome score, adverse drug reactions, and pregnancy rate were compared as well. RESULTS: After treatment, the experimental group had a higher treatment efficacy (94.44% vs 73.17%, P < 0.05) and a higher pregnancy rate (44.44% vs 21.95%, P < 0.05) than the control group, but the difference in the incidence of adverse drug reactions was not statistically significant (P > 0.05). Compared with control group, TCM syndrome score and levels of fasting blood glucose, fasting insulin, homeostasis model assessment of insulin resistance (HOMA-IR), and waist circumference of the experimental group after treatment displayed remarkable reduction (P < 0.05), while the levels of estradiol (E2) and high-density lipoprotein cholesterol (HDL-C) showed a remarkable increase (P < 0.05). CONCLUSION: CDD in combination with drospirenone and ethinylestradiol tablets (II) may be effective in treating PCOS by improving obesity, glucose metabolism and lipid metabolism with no serious adverse events, making it a feasible clinical practice option.


Assuntos
Androstenos , Medicamentos de Ervas Chinesas , Resistência à Insulina , Síndrome do Ovário Policístico , Gravidez , Feminino , Humanos , Síndrome do Ovário Policístico/tratamento farmacológico , Síndrome do Ovário Policístico/metabolismo , Obesidade , Comprimidos/uso terapêutico
2.
Acta Paediatr ; 113(6): 1209-1220, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38529710

RESUMO

AIM: To provide paediatricians with a summary of efficacy and safety of SQ sublingual immunotherapy (SLIT) tablets from phase three, randomised, double-blind, placebo-controlled trials in children and adolescents with allergic rhinitis or rhinoconjunctivitis, with and without asthma. METHODS: PubMed searches were conducted and unpublished data were included if necessary. RESULTS: Of the 93 publications, 12 were identified reporting 10 trials. One trial was excluded as paediatric-specific efficacy data were unavailable. The nine eligible trials evaluated grass, house dust mite, ragweed and tree SLIT tablets. Consistent reductions in allergic rhinitis or rhinoconjunctivitis symptoms and medication use were observed with SQ SLIT tablets versus placebo. In a five-year trial, sustained reduction of allergic rhinoconjunctivitis symptoms, asthma symptoms and medication use were observed with SQ grass SLIT tablet versus placebo. The number-needed-to-treat to prevent asthma symptoms and medication use in one additional child during follow-up was lowest in younger children. SQ SLIT tablets were generally well tolerated across trials. CONCLUSION: Evidence supports use of SQ SLIT tablets in children and adolescents with allergic rhinitis or rhinoconjunctivitis, with and without asthma. Long-term data demonstrate disease-modifying effects of SQ grass SLIT tablet and suggest the clinical relevance of initiating allergy immunotherapy earlier in the disease course.


Assuntos
Rinite Alérgica , Imunoterapia Sublingual , Comprimidos , Humanos , Criança , Imunoterapia Sublingual/métodos , Rinite Alérgica/terapia , Adolescente , Ensaios Clínicos Controlados Aleatórios como Assunto , Ensaios Clínicos Fase III como Assunto , Administração Sublingual , Asma/terapia
3.
Biomed Chromatogr ; 38(5): e5848, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38368632

RESUMO

Obesity is a persistent metabolic condition resulting from the excessive accumulation or abnormal distribution of body fat. This study aimed to establish an experimental rat model of obesity. The efficacy of treating obesity with Hedan tablets (HDT) was assessed by monitoring changes in weight, blood lipid levels, analyzing inflammatory factors, evaluating organ indices, and observing liver tissue pathology. Furthermore, we utilized 16S ribosomal RNA gene sequencing technology to explore changes in intestinal flora. In addition, GC-MS was used to measure fecal short-chain fatty acid (SCFA) content. The onset of obesity led to a significant decrease in the relative abundance of beneficial bacteria. Conversely, the administration of HDT demonstrated a substantial ability to increase the relative abundance of beneficial bacteria. Obesity resulted in a noteworthy reduction in total SCFAs, a trend significantly reversed in the HDT group. Through correlation analysis, it was determined that HDT mitigated the inflammatory response and improved blood lipid levels by augmenting the abundance of Lactobacillus, Limosilactobacillus, Ruminococcus, and Enterococcus. These particular intestinal flora were identified as regulators of SCFA metabolism, thereby ameliorating metabolic abnormalities associated with obesity. Moreover, HDT intervention elevated the overall fecal concentration of SCFAs, thereby improving metabolic disorders induced by obesity. The anti-obesity effects of HDT are likely attributable to their capacity to influence the composition of intestinal flora and boost SCFA levels in the intestine.


Assuntos
Dieta Hiperlipídica , Cromatografia Gasosa-Espectrometria de Massas , Microbioma Gastrointestinal , Obesidade , RNA Ribossômico 16S , Ratos Sprague-Dawley , Animais , Ratos , Obesidade/metabolismo , Obesidade/tratamento farmacológico , Masculino , Dieta Hiperlipídica/efeitos adversos , Microbioma Gastrointestinal/efeitos dos fármacos , Cromatografia Gasosa-Espectrometria de Massas/métodos , Fezes/química , Fezes/microbiologia , Comprimidos , Ácidos Graxos Voláteis/análise , Ácidos Graxos Voláteis/metabolismo , Bactérias/classificação , Bactérias/efeitos dos fármacos , Bactérias/genética , Medicamentos de Ervas Chinesas/farmacologia
4.
J Med Internet Res ; 26: e54645, 2024 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-38657229

RESUMO

BACKGROUND: Understanding patient preference regarding taking tablet or capsule formulations plays a pivotal role in treatment efficacy and adherence. Therefore, these preferences should be taken into account when designing formulations and prescriptions. OBJECTIVE: This study investigates the factors affecting patient preference in patients who have difficulties swallowing large tablets or capsules and aims to identify appropriate sizes for tablets and capsules. METHODS: A robust data set was developed based on a questionnaire survey conducted from December 1, 2022, to December 7, 2022, using the harmo smartphone app operated by harmo Co, Ltd. The data set included patient input regarding their tablet and capsule preferences, personal health records (including dispensing history), and drug formulation information (available from package inserts). Based on the medication formulation information, 6 indices were set for each of the tablets or capsules that were considered difficult to swallow owing to their large size and concomitant tablets or capsules (used as controls). Receiver operating characteristic (ROC) analysis was used to evaluate the performance of each index. The index demonstrating the highest area under the curve of the ROC was selected as the best index to determine the tablet or capsule size that leads to swallowing difficulties. From the generated ROCs, the point with the highest discriminative performance that maximized the Youden index was identified, and the optimal threshold for each index was calculated. Multivariate logistic regression analysis was performed to identify the risk factors contributing to difficulty in swallowing oversized tablets or capsules. Additionally, decision tree analysis was performed to estimate the combined risk from several factors, using risk factors that were significant in the multivariate logistic regression analysis. RESULTS: This study analyzed 147 large tablets or capsules and 624 control tablets or capsules. The "long diameter + short diameter + thickness" index (with a 21.5 mm threshold) was identified as the best indicator for causing swallowing difficulties in patients. The multivariate logistic regression analysis (including 132 patients with swallowing difficulties and 1283 patients without) results identified the following contributory risk factors: aged <50 years (odds ratio [OR] 1.59, 95% CI 1.03-2.44), female (OR 2.54, 95% CI 1.70-3.78), dysphagia (OR 3.54, 95% CI 2.22-5.65), and taking large tablets or capsules (OR 9.74, 95% CI 5.19-18.29). The decision tree analysis results suggested an elevated risk of swallowing difficulties for patients with taking large tablets or capsules. CONCLUSIONS: This study identified the most appropriate index and threshold for indicating that a given tablet or capsule size will cause swallowing difficulties, as well as the contributory risk factors. Although some sampling biases (eg, only including smartphone users) may exist, our results can guide the design of patient-friendly formulations and prescriptions, promoting better medication adherence.


Assuntos
Cápsulas , Registros Eletrônicos de Saúde , Comprimidos , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Idoso , Registros de Saúde Pessoal , Transtornos de Deglutição , Deglutição , Inquéritos e Questionários , Preferência do Paciente/estatística & dados numéricos
5.
BMC Med Inform Decis Mak ; 24(1): 88, 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38539201

RESUMO

BACKGROUND: The pharmaceutical industry is continually striving to innovate drug development and formulation processes. Orally disintegrating tablets (ODTs) have gained popularity due to their quick release and patient-friendly characteristics. The choice of excipients in tablet formulations plays a critical role in ensuring product quality, highlighting its importance in tablet creation. The traditional trial-and-error approach to this process is both expensive and time-intensive. To tackle these obstacles, we introduce a fresh approach leveraging machine learning and deep learning methods to automate and enhance pre-formulation drug design. METHODS: We collected a comprehensive dataset of 1983 formulations, including excipient names, quantities, active ingredient details, and various physicochemical attributes. Our study focused on predicting two critical control test parameters: tablet disintegration time and hardness. We compared a range of models like deep learning, artificial neural networks, support vector machines, decision trees, multiple linear regression, and random forests. RESULTS: A 12-layer deep neural network, as a form of deep learning, surpassed alternative techniques by achieving 73% accuracy for disintegration time and 99% for tablet hardness. This success underscores its efficacy in predicting complex pharmaceutical factors. Such an approach streamlines the drug formulation process, reducing iterations and material consumption. CONCLUSIONS: Our findings highlight the deep learning potential in pharmaceutical formulations, particularly for tablet hardness prediction. Future work should focus on enlarging the dataset to improve model effectiveness and extend its application in pharmaceutical product development and assessment.


Assuntos
Inteligência Artificial , Excipientes , Humanos , Solubilidade , Dureza , Comprimidos
6.
Aging Ment Health ; 28(4): 587-594, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37545419

RESUMO

OBJECTIVE: This study evaluated a digital intervention program with aging Holocaust survivors. Participants received a tablet device and were coupled with a volunteer who assisted them to use the tablet. The study aimed to assess which characteristics of the Holocaust survivors are linked with more frequent use of digital communication at the end of the program. METHODS: Information was collected by telephone interviews with 91 survivors before and 54 after participating in the program. We combined this data with digital usage data from the tablets. Regression models examined the characteristics of Holocaust survivors that were related to higher frequency of using digital communication technologies during the intervention. RESULTS: The Holocaust survivors expressed high satisfaction with the program. They increased their frequency of using digital communication technologies-text correspondence and video chats with friends and family. Regressions showed that Holocaust survivors who reported increased digital communication were characterized at the start of the intervention by having fewer post-traumatic stress symptoms, higher levels of flourishing (reflecting a more meaningful life and higher well-being), being lonelier, and were also more satisfied with the program at follow-up. CONCLUSION: The pilot program benefited the aging Holocaust survivors. Further programs should be developed to increase the digital communication of vulnerable older populations, such as trauma survivors.


Assuntos
Holocausto , Transtornos de Estresse Pós-Traumáticos , Humanos , Envelhecimento , Terapia Comportamental , Sobreviventes
7.
Allergol Immunopathol (Madr) ; 52(3): 73-77, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38721958

RESUMO

For the first time 15 years ago, tablet allergen immunotherapy (T-AIT) formulations were approved by regulatory agencies for treating allergic rhinitis caused by grass pollen in adults and children aged >5 years. Extensive evidences existed about effectiveness and safety of AIT. However, the safety profile is particularly compelling in children. Generally, T-AIT causes local reactions, mostly in the oral cavity, that are usually mild-to-moderate and often self-resolving. However, systemic allergic reactions are also observed with T-AIT, anaphylaxis representing the most fearsome adverse event, considering that it occurs in subjects treated for allergic rhinitis. Therefore, we conducted a literature search of patients reporting anaphylaxis because of T-AIT. Nine cases of anaphylactic reactions were reported in literature. Notably, no death was reported using T-AIT. This outcome was very important as it underscored the substantial safety of T-AIT. However, T-AIT deserves careful attention, mainly in the pediatric population. In this regard, after the first report of anaphylactic reaction at the first administration of T-AIT, manufacturers recommended that the first dose should be administered in a medical facility in the presence of staff with experience in managing anaphylaxis and the patient should be observed for at least 30 min. Interestingly, reported anaphylactic reactions were due to grass pollen extracts, with no report concerning other allergen extracts. However, it is relevant to note that anaphylactic reactions because of T-AIT are not reported in recent years.


Assuntos
Alérgenos , Anafilaxia , Dessensibilização Imunológica , Comprimidos , Humanos , Anafilaxia/terapia , Anafilaxia/etiologia , Anafilaxia/imunologia , Dessensibilização Imunológica/métodos , Dessensibilização Imunológica/efeitos adversos , Alérgenos/imunologia , Alérgenos/administração & dosagem , Alérgenos/efeitos adversos , Criança , Pólen/imunologia , Pólen/efeitos adversos , Poaceae/imunologia , Poaceae/efeitos adversos , Rinite Alérgica Sazonal/terapia , Rinite Alérgica Sazonal/imunologia , Adulto , Rinite Alérgica/terapia , Rinite Alérgica/imunologia , Pré-Escolar
8.
Aging Ment Health ; 28(4): 604-610, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37723897

RESUMO

Objectives: Video-based telehealth may expand access to mental health services among older veterans with alcohol use disorder (AUD). We examined the modalities through which mental health services were rendered, and predictors of video visits before and after video-enabled tablet receipt from the Veterans Health Administration. Method: 11,210 veterans aged 60 or older with a diagnosis of AUD who received a tablet between 1 April 2020 and 25 October 2021 were identified. The electronic health record was used to characterized encounters by modality of mental health care delivery in the six months pre/post tablet receipt. Logistic regression examined predictors of a video visit for mental health. Results: Phone was the most common modality; however, the proportion of video encounters increased from 8.7% to 26.2% after tablet receipt. Individuals who were older, male, and had more physical health conditions, were less likely to have a video visit. Individuals who were married, resided in urban areas, had a history of housing instability, and had more mental health conditions, were more likely to have a video visit. Conclusion: Video-enabled tablets may help older adults with AUD overcome access barriers to mental health services, although targeted support for certain groups may be necessary.


Assuntos
Alcoolismo , Serviços de Saúde Mental , Telemedicina , Veteranos , Humanos , Masculino , Idoso , Veteranos/psicologia , Alcoolismo/terapia , Saúde Mental , Comprimidos , Saúde dos Veteranos
9.
Luminescence ; 39(5): e4777, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38785072

RESUMO

This study introduces a practical and cost-effective method for tracking diltiazem (DLZ) analytically. It utilizes a fluorimetric approach that relies on the modulation of fluorescence intensity of a dye called erythrosine B. Through a one-pot experiment performed in an acidic environment, a complex is rapidly formed between DLZ and erythrosine B. By observing the decrease in erythrosine B emission, a linear calibration plot is established, enabling the detection and quantification of DLZ concentrations ranging from 40 to 850 ng/ml. The estimated limits of detection and quantitation were 10.5 and 32.1 ng/ml, respectively. The variables affecting the DLZ-dye complex system were carefully adjusted. The validity of the approach was confirmed through a thorough evaluation based on the criteria set by ICH guidelines. The accuracy and precision of the methodology were evaluated, and the standard deviation and relative standard deviation were below 2. The strategy was successfully employed to analyze DLZ in tablets and capsules, and no significant variation between the proposed and reported methods as the values of the estimated t-test and F-test at five determinations were below 2.306 and 6.338, respectively. Notably, the method adheres to the principle of green chemistry by utilizing distilled water as the dispersing medium.


Assuntos
Diltiazem , Eritrosina , Diltiazem/análise , Diltiazem/química , Eritrosina/química , Eritrosina/análise , Espectrometria de Fluorescência , Comprimidos/análise , Concentração de Íons de Hidrogênio , Limite de Detecção , Cápsulas/química , Corantes Fluorescentes/química , Formas de Dosagem
10.
Arch Gynecol Obstet ; 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38951261

RESUMO

OBJECTIVE: To analyze the efficacy of levonorgestrelintrauterine system, Drospirenone & ethinylestradiol tablets (II), and dydrogesterone in preventing the recurrence of endometrial polyps after hysteroscopic endometrial polypectomy. METHODS: One hundred seventy patients who underwent hysteroscopic endometrial polypectomy in the Gynecology Department of Tianmen First People's Hospital in Hubei Province from January 2022 to June 2023 were randomly divided into the levonorgestrelintrauterine system group, Drospirenone & ethinylestradiol tablets (II) group, dydrogesterone group, and a control group. The recurrence rates, endometrial thickness, and menstrual volume changes at 6 and 12 months post-operation were compared among these four groups. RESULTS: The recurrence rates in the levonorgestrelintrauterine system group, Drospirenone & ethinylestradiol tablets (II) group, and dydrogesterone group were lower than the control group, with statistical significance (P < 0.01), with the levonorgestrelintrauterine system group having the lowest recurrence rate. The endometrial thickness at 6 and 12 months post-operation in the levonorgestrelintrauterine system group, Drospirenone & ethinylestradiol tablets (II) group, and dydrogesterone group was thinner than that of the control group and thinner than pre-operation, with statistical significance (P < 0.01). The menstrual volume at 3 months post-operation in the levonorgestrelintrauterine system group, Drospirenone & ethinylestradiol tablets (II) group, and dydrogesterone group was significantly less than the control group, and less than the pre-operation volume. CONCLUSION: Dydrogesterone, drospirenone & ethinylestradiol tablets (II), and levonorgestrelintrauterine system all play a role in preventing the recurrence of endometrial polyps, but levonorgestrelintrauterine system is significantly better than dydrogesterone and Drospirenone & ethinylestradiol tablets (II) in terms of postoperative recurrence rate, endometrial thickness, menstrual changes, and compliance, and is worth promoting in clinical application.

11.
Phytochem Anal ; 35(5): 1123-1133, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38462488

RESUMO

INTRODUCTION: Yangxinshi tablet (YXST) is a traditional Chinese medicine preparation characterized by its high efficacy and safety for the treatment of cardiovascular diseases. Anionic compounds have been revealed as potential active components. However, there is currently limited research regarding its quality control. OBJECTIVE: We aimed to establish a strategy for the simultaneous separation and determination of five key anionic compounds in YXST. METHOD: A sensitive and efficient analytical method was developed and applied for the simultaneous separation and determination of five key compounds in YXST using large-volume sample stacking with polarity switching and micelle electrokinetic chromatography (LVSS-PS-MEKC) coupled with diode array detection. Crucial parameters, including sample volume, applied voltage, composition and pH of the running buffer, concentration of organic modifier, and switching time of the polarity, were systematically evaluated and optimized using a single variable method to enhance separation performance. Furthermore, the impact of cyclodextrin and sodium dodecyl sulfate as electrolyte modifiers was also investigated. RESULTS: Under the optimal conditions, baseline separation of the five compounds (daidzein, puerarin, glycyrrhiztinic acid, chlorogenic acid, and salvianolic acid B) was achieved within 20 min. In comparison to the conventional MEKC mode, the constructed LVSS-PS-MEKC method exhibited a more than sixfold increase in the enrichment factor. The method was validated in terms of linearity, precision, accuracy, 24 h stability, and recovery and successfully applied to analyze YXST samples. CONCLUSION: A sensitive strategy was developed for the simultaneous separation and determination of five key anionic components in YXST, offering a robust and efficient strategy for pharmaceutical analysis.


Assuntos
Ânions , Cromatografia Capilar Eletrocinética Micelar , Medicamentos de Ervas Chinesas , Comprimidos , Cromatografia Capilar Eletrocinética Micelar/métodos , Comprimidos/química , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/análise , Reprodutibilidade dos Testes , Dodecilsulfato de Sódio/química
12.
Sensors (Basel) ; 24(2)2024 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-38276321

RESUMO

Environmental conditions can lead to changes in the physical and chemical structures of drug products. In this study, the stability of cefuroxime tablets stored under adverse conditions was evaluated based on total directional-hemispherical reflectance (THR). The THR value was measured before and after the tablets' exposure to stress factors (temperature of 45 °C and UV radiation). Each measurement was performed three times within seven spectral bands at the beginning of the experiment (day 0), and then on days 1, 2, 3, 5, and 7. In addition, hyperspectral profiles (400-1030 nm) were analyzed on days 0 and 7. A significant decrease in THR values in all wavelength ranges was observed when day 7 vs. day 0 were compared, especially for spectral bands of 335-380 nm and 1700-2500 nm (Δ = 0.220, p < 0.001 and Δ = 0.171, p < 0.001, respectively). The hyperspectral analysis confirmed a decrease in the reflectance after the end of stress conditions in the visible light range (400-700 nm) compared to tablets before the experiment. This may indicate that more radiation entered the tablets. In conclusion, the THR of cefuroxime tablets decreases during the exposure to heat and UV radiation, which may result from some physicochemical changes that have occurred during storage.


Assuntos
Cefuroxima , Raios Ultravioleta , Cefuroxima/química , Temperatura , Luz , Comprimidos
13.
Drug Dev Ind Pharm ; 50(1): 45-54, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38095592

RESUMO

OBJECTIVE: Florfenicol(FF) is an excellent veterinary antibiotic, limited by poor solubility and poor bioavailability. SIGNIFICANCE: Here in, we aimed to explore the applicability of fast disintegrating tablets compressed from Florfenicol-loaded solid dispersions (FF-SD-FDTs) to improve the dissolution rate and oral bioavailability of Florfenicol. METHODS: Utilizing selecting appropriate preparation methods and carriers, the solid dispersions of Florfenicol (FF-SDs) were prepared by solvent evaporation and the fast disintegrating tablets (FF-SD-FDTs) were prepared by the direct compression (DC) method. RESULTS: The tablet properties including hardness, friability, disintegration time, weight variation, etc. all met the specifications of Chinese Veterinary Pharmacopeia(CVP). FF-SD-FDTs significantly improved drug dissolution and dispersion of FF in vitro compared to florfenicol conventional tablets (FF-CTs). A pharmacokinetics study in German shepherd dogs proved the AUC0-∞ and Cmax values of FF-SD-FDTs are 1.38 and 1.38 times more than FF-CTs, respectively. CONCLUSIONS: Overall, it can be concluded that FF-SD-FDTs with excellent disintegration and dissolution properties were successfully produced, which greatly improved the oral bioavailability of the poorly soluble drug FF, and the study provided a new idea for a broader role of FF in pet clinics.


Assuntos
Tecnologia , Tianfenicol/análogos & derivados , Animais , Cães , Disponibilidade Biológica , Solubilidade , Liberação Controlada de Fármacos , Comprimidos
14.
Drug Dev Ind Pharm ; 50(6): 537-549, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38771120

RESUMO

OBJECTIVE AND SIGNIFICANCE: Reducing the dimensions, when other additives are present, shows potential as a method to improve the dissolution and solubility of biopharmaceutical classification system class II drugs that have poor solubility. In this investigation, the process involved grinding naproxen with nicotinamide with the aim of improving solubility and the rate of dissolution. METHODS: Naproxen was subjected to co-milling with urea, dimethylurea, and nicotinamide using a planetary ball mill for a duration of 90 min, maintaining a 1:1 molar ratio for the excipients (screening studies). The co-milled combinations, naproxen in its pure milled form, and a physical mixture were subjected to analysis using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), and solubility assessment. The mixture displaying the highest solubility (naproxen-nicotinamide) was chosen for further investigation, involving testing for intrinsic dissolution rate (IDR) and Fourier-transform infrared spectroscopy (FTIR) after co-milling for both 90 and 480 min. RESULTS AND CONCLUSION: The co-milled combination, denoted as S-3b and consisting of the most substantial ratio of nicotinamide to naproxen at 1:3, subjected to 480 min of milling, exhibited a remarkable 45-fold increase in solubility and a 9-fold increase in IDR. XRPD analysis of the co-milled samples demonstrated no amorphization, while SEM images portrayed the aggregates of naproxen with nicotinamide. FTIR outcomes negate the presence of any chemical interactions between the components. The co-milled sample exhibiting the highest solubility and IDR was used to create a tablet, which was then subjected to comprehensive evaluation for standard attributes. The results revealed improved compressibility and dissolution properties.


Assuntos
Naproxeno , Niacinamida , Solubilidade , Comprimidos , Difração de Raios X , Naproxeno/química , Niacinamida/química , Difração de Raios X/métodos , Excipientes/química , Química Farmacêutica/métodos , Espectroscopia de Infravermelho com Transformada de Fourier/métodos , Composição de Medicamentos/métodos , Microscopia Eletrônica de Varredura/métodos
15.
Drug Dev Ind Pharm ; 50(2): 173-180, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38265062

RESUMO

OBJECTIVES: Glimepiride Orodispersable Tablets (ODT) were prepared with the goal to have rapid onset of action and higher bioavailability with ease administration to individuals with swallowing difficulty to ameliorate patient compliance. SIGNIFICANCE: Glimepiride is a contemporary hypoglycemic medication that belongs to the family of sulfonylurea derivatives. It is used in type 2 diabetes mellitus. Compliance adherence remains one of the limitations with the conventional drug delivery system especially in pediatric, geriatric, psychiatric, and traveling patients, for such population ODT provides a good alternate dosage form compared with Commercial Tablets. METHOD: The Comparative in vivo pharmacokinetic parameters of the prepared ODT and conventional tablets (CT) were evaluated using an animal model. The plasma concentration of Glimepiride after oral administration of a single dose was determined at predetermined time intervals with HPLC. The pharmacokinetic parameters were calculated using PK Solutions 2.0 from Summit PK® software. RESULTS: The Cmax obtained with ODT (22.08 µg/ml) was significantly (p = 0.006) high, a lower tmax of 3.0 hr was achieved with the orodispersable formulation of the drug. The ODT showed 104.34% relative bioavailability as compared to CT and left shift of tmax as well. CONCLUSION: As per findings of the in vivo investigation, the Glimepiride ODT would be beneficial in terms of patient compliance, quick onset of action, and increased bioavailability.


Assuntos
Diabetes Mellitus Tipo 2 , Animais , Criança , Humanos , Coelhos , Idoso , Diabetes Mellitus Tipo 2/tratamento farmacológico , Compostos de Sulfonilureia/farmacocinética , Hipoglicemiantes , Comprimidos , Administração Oral
16.
Drug Dev Ind Pharm ; 50(4): 331-340, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38456721

RESUMO

OBJECTIVE: This study aimed to optimize the formulation of carbidopa/levodopa orally disintegrating tablets (ODTs) in order to improve their disintegration performance, and facilitate easier medication intake for Parkinson's patients. METHOD: The response surface methodology (RSM) was used to optimize the formulation, with the content of cross-linked polyvinylpyrrolidone (PVPP), microcrystalline cellulose (MCC), and mannitol (MNT) as independent variables, and disintegration time as the response parameter. Python was utilized to model Carr Indices and mixing time to determine the suitable mixing time. Direct compression (DC) was used for the preparation of ODTs. RESULT: The optimization process resulted in the following values for the independent variables: 7.04% PVPP, 22.02% MCC, and 16.21% MNT. By optimizing the mixing time using Python, it was reduced to 14.19 min. The ODTs prepared using the optimized formulation and a mixing time of 14.19 min exhibited disintegration times of 16.74 s in vitro and 17.63 s in vivo. The content uniformity of levodopa and carbidopa was found to be 100.83% and 99.48%, respectively. CONCLUSION: The ODTs optimized using RSM and Python demonstrated excellent disintegration performance, leading to a decrease in the time the drug exists in solid form in the oral cavity. This improvement in disintegration time reduced the difficulty of swallowing for patients and enhanced medication compliance, while still ensuring that ODTs prepared by DC had sufficient mechanical strength to meet storage and transportation requirements.


Assuntos
Carbidopa , Levodopa , Povidona/análogos & derivados , Humanos , Solubilidade , Administração Oral , Manitol , Comprimidos/química , Composição de Medicamentos/métodos
17.
Drug Dev Ind Pharm ; 50(1): 36-44, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38149637

RESUMO

INTRODUCTION: Orally disintegrating tablets (ODTs) are designed to dissolve in the oral cavity within 3 min, providing a convenient option for patients as they can be taken without water. Direct compression is the most common method used for ODTs formulations. However, the availability of single composite excipients with desirable characteristics such as good compressibility, fast disintegration, and a good mouthfeel suitable for direct compression is limited. OBJECTIVE: This research was proposed to develop a co-processed excipient composed of xylitol, mannitol, and microcrystalline cellulose for the formulation of ODTs. METHODS: A total of 11 formulations of co-processed excipients with different ratios of ingredients were prepared, which were then compressed into ODTs, and their characteristics were thoroughly examined. The primary focus was on evaluating the disintegration time and hardness of the tablets, as these factors are important in ensuring the ODTs meet the desired criteria. The model drug, Mirtazapine was then incorporated into the chosen optimized formulation. RESULTS: The results showed that the formulation comprised of 10% xylitol, 10% mannitol and 80% microcrystalline cellulose demonstrated the fastest disintegration time (1.77 ± 0.119 min) and sufficient hardness (3.521 ± 0.143 kg) compared to the other formulations. Furthermore, the drug was uniformly distributed within the tablets and fully released within 15 min. CONCLUSION: Therefore, the developed co-processed excipients show great potential in enhancing the functionalities of ODTs, offering a promising solution to improve the overall performance and usability of ODTs in various therapeutic applications.


Assuntos
Excipientes , Xilitol , Humanos , Excipientes/química , Mirtazapina , Composição de Medicamentos/métodos , Solubilidade , Administração Oral , Comprimidos/química , Manitol/química
18.
Drug Dev Ind Pharm ; 50(2): 112-123, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38156891

RESUMO

BACKGROUND: Lepidium sativum, Garden Cress (GC), seeds have a lot of natural molecules with a pronounced activity against different disorders. It was reported that GC seeds have the ability to lower the blood glucose level. AIM: The aim of this work was to formulate GC seeds into oral tablets containing a fixed dose of the grounded seeds. Furthermore, the anti-diabetic performance of the prepared tablets was studied in the streptozotocin rats' model in comparison with positive control metformin. METHODS: Micrometrics of GC grounded seeds with different excipients were investigated. Then, GC tablets were prepared via direct compression technique. GC tablets were characterized for their uniformity of dosage unit, friability, hardness, disintegration time, and in vitro release. The antidiabetic effect was studied in rats for a period of 28 days. Glycosylated hemoglobin, liver performance, and lipid levels include total cholesterol (TC), triglycerides (TGs), high-density lipoprotein (HDL), and low-density lipoprotein (LDL) were also estimated. In addition, histopathological study of liver and pancreas was also performed. RESULTS: Prosolv®EasyTab produced tablets with higher hardness, lower disintegration time, and fast release. GC tablets significantly lower the elevated blood glucose level. In addition, they have antihyperlipidemic activity, hepatocellular protective role and restore the histology of the liver and pancreas. CONCLUSION: GC tablets could be a promising alternative formulation to control the high blood glucose level in diabetic rats rather than chemically derivatized drugs.


Assuntos
Diabetes Mellitus Experimental , Lepidium , Metformina , Ratos , Animais , Hipoglicemiantes/farmacologia , Glicemia , Diabetes Mellitus Experimental/tratamento farmacológico , Comprimidos/química
19.
Int J Mol Sci ; 25(10)2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38791175

RESUMO

The modified release of active substances such as chlorzoxazone from matrix tablets, based on Kollidon®SR and chitosan, depends both on the drug solubility in the dissolution medium and on the matrix composition. The aim of this study is to obtain some new oral matrix tablet formulations, based on Kollidon®SR and chitosan, in order to optimize the low-dose oral bioavailability of chlorzoxazone, a non-steroidal anti-inflammatory drug of class II Biopharmaceutical Classification System. Nine types of chlorzoxazone matrix tablets were obtained using the direct compression method by varying the components ratio as 1:1, 1:2, and 1:3 chlorzoxazone/excipients, 20-40 w/w % Kollidon®SR, 3-7 w/w % chitosan while the auxiliary substances: Aerosil® 1 w/w %, magnesium stearate 0.5 w/w % and Avicel® up to 100 w/w % were kept in constant concentrations. Pharmaco-technical characterization of the tablets included the analysis of flowability and compressibility properties (flow time, friction coefficient, angle of repose, Hausner ratio, and Carr index), and pharmaco-chemical characteristics (such as mass and dose uniformity, thickness, diameter, mechanical strength, friability, softening degree, and in vitro release profiles). Based on the obtained results, only three matrix tablet formulations (F1b, F2b, and F3b, containing 30 w/w % KOL and 5 w/w % CHT, were selected and further tested. These formulations were studied in detail by Fourier-transform infrared spectrometry, X-ray diffraction, thermogravimetry, and differential scanning calorimetry. The three formulations were comparatively studied regarding the release kinetics of active substances using in vitro release testing. The results were analyzed by fitting into four representative mathematical models for the modified-release oral formulations. In vitro kinetic study revealed a complex mechanism of release occurring in two steps of drug release, the first step (0-2 h) and the second (2-36 h). Two factors were calculated to assess the release profile of chlorzoxazone: f1-the similarity factor, and f2-the factor difference. The results have shown that both Kollidon®SR and chitosan may be used as matrix-forming agents when combined with chlorzoxazone. The three formulations showed optima pharmaco-technical properties and in vitro kinetic behavior; therefore, they have tremendous potential to be used in oral pharmaceutical products for the controlled delivery of chlorzoxazone. In vitro dissolution tests revealed a faster drug release for the F2b sample.


Assuntos
Quitosana , Clorzoxazona , Preparações de Ação Retardada , Liberação Controlada de Fármacos , Interações Hidrofóbicas e Hidrofílicas , Comprimidos , Comprimidos/química , Clorzoxazona/química , Clorzoxazona/farmacocinética , Preparações de Ação Retardada/química , Preparações de Ação Retardada/farmacocinética , Quitosana/química , Solubilidade , Excipientes/química , Química Farmacêutica/métodos
20.
J Med Syst ; 48(1): 16, 2024 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-38289373

RESUMO

In 2020, the U.S. Department of Veterans Affairs (VA) expanded an initiative to distribute video-enabled tablets to Veterans with limited virtual care access. We examined patient characteristics associated with adoption and sustained use of video-based primary care among Veterans. We conducted a retrospective cohort study of Veterans who received VA-issued tablets between 3/11/2020-9/10/2020. We used generalized linear models to evaluate the sociodemographic and clinical factors associated with video-based primary care adoption (i.e., likelihood of having a primary care video visit) and sustained use (i.e., rate of video care) in the six months after a Veteran received a VA-issued tablet. Of the 36,077 Veterans who received a tablet, 69% had at least one video-based visit within six months, and 24% had a video-based visit in primary care. Veterans with a history of housing instability or a mental health condition, and those meeting VA enrollment criteria for low-income were significantly less likely to adopt video-based primary care. However, among Veterans who had a video visit in primary care (e.g., those with at least one video visit), older Veterans, and Veterans with a mental health condition had more sustained use (higher rate) than younger Veterans or those without a mental health condition. We found no differences in adoption of video-based primary care by rurality, age, race, ethnicity, or low/moderate disability and high disability priority groups compared to Veterans with no special enrollment category. VA's tablet initiative has supported many Veterans with complex needs in accessing primary care by video. While Veterans with certain social and clinical challenges were less likely to have a video visit, those who adopted video telehealth generally had similar or higher rates of sustained use. These patterns suggest opportunities for tailored interventions that focus on needs specific to initial uptake vs. sustained use of video care.


Assuntos
Veteranos , Estados Unidos , Humanos , Estudos Retrospectivos , Modelos Lineares , Comprimidos , Atenção Primária à Saúde
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