Impact of vehicles on indomethacin's in-vivo performance

| Posted in: Science

Journal name: World Journal of Pharmaceutical Research
Original article title: The effect of various vehicles on in-vivo performance of indomethacin from different topical formulations
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Original source:

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Author:

M. Kaleemullah, Jiyauddin K., Gerard T. M., Samer A. D., Jawad A., S. Budiasih, Rasha S., Hamid A.K, Fadli A. and Eddy Y.


World Journal of Pharmaceutical Research:

(An ISO 9001:2015 Certified International Journal)

Full text available for: The effect of various vehicles on in-vivo performance of indomethacin from different topical formulations

Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research

Copyright (license): WJPR: All rights reserved


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Summary of article contents:

Introduction

The study by Kaleemullah et al. investigates the effects of different vehicle formulations on the in-vivo performance of indomethacin, a non-steroidal anti-inflammatory drug (NSAID). The primary goal is to evaluate the efficacy of topical formulations (creams and gels) in reducing inflammation in a controlled animal model. By examining the pharmacological properties of the formulations, the researchers aim to determine an optimal and stable system for cutaneous application of indomethacin, enhancing its therapeutic effectiveness while minimizing systemic exposure.

Formulation Stability

One pivotal aspect of the research is the assessment of the physical stability of the indomethacin cream and gel formulations over a period of one month. The study shows that both formulations exhibited consistent appearance and texture, with no signs of phase separation or color change during this period. Regular evaluations confirmed that the formulations remained homogenous, indicating a successful preparation process. The cream formulation (composed of white petroleum, sodium lauryl sulfate, and other excipients) and the gel formulation (utilizing Carbopol® 934 as a gelling agent) maintained their intended characteristics, critical for their effectiveness in clinical applications.

pH as a Determinant of Skin Compatibility

Another significant focus of the study is the pH measurements of both cream and gel formulations. The pH levels for both formulations were maintained within a range suitable for human skin (4 to 7), thus affirming their compatibility for topical application. During the four weeks of observation, the pH of the cream and gel varied minimally, with both formulations remaining stable and appropriate for use. The statistical analysis confirmed the significance of these pH values, suggesting that both preparations would likely not irritate the skin, making them safe options for topical delivery.

In-Vivo Efficacy Results

The in-vivo studies evaluated the anti-inflammatory effects of the cream and gel formulations in Wistar strain albino rats subjected to formalin-induced inflammation. The results revealed that both formulations effectively reduced paw swelling; however, the cream formulation demonstrated marginally better performance compared to the gel. Despite the cream’s superiority in efficacy, statistical analyses revealed no significant difference (p > 0.05) between the two formulations. This suggests that both formulations are viable options for delivering indomethacin topically, but the cream formulation may offer slightly enhanced therapeutic benefits.

Conclusion

In conclusion, the study successfully developed stable formulations of indomethacin in both cream and gel forms and confirmed their effectiveness in reducing inflammation in an animal model. Although the cream exhibited better results compared to the gel, both formulations proved to be effective with no significant differences noted. The study highlights the need for further research to explore a broader range of topical formulations and their pharmacological profiles, as understanding these parameters is crucial for improving treatment options for pain and inflammation relief. The authors express gratitude to supporting entities and emphasize the importance of continued research in this field.

FAQ section (important questions/answers):

What is the purpose of this study on indomethacin formulations?

The study aims to evaluate the impact of different topical vehicles on the in-vivo performance of indomethacin, a non-steroidal anti-inflammatory drug (NSAID), in order to develop stable formulations suitable for skin application.

What forms of indomethacin were tested in the study?

The study tested two topical formulations: a cream (oil-in-water emulsion) and a gel, both containing indomethacin, to compare their effectiveness in reducing inflammation in an animal model.

How was the efficacy of the indomethacin formulations measured?

The efficacy was measured by observing the reduction in paw size due to induced inflammation in Wistar strain albino rats after applying the cream or gel formulations containing indomethacin.

What were the results concerning the stability of formulations?

Both the developed indomethacin cream and gel showed stable characteristics over a one-month period, maintaining their consistency, color, and homogeneity with no phase separation observed.

What were the significant findings regarding inflammation reduction?

The cream formulation exhibited a slightly better reduction in inflammation compared to the gel formulation, but no statistically significant difference was found (p > 0.05) between the two.

What are the recommendations for future research based on this study?

Future research should focus on conducting in-vitro studies for a thorough analysis of drug release profiles and further explore variations in topical formulations containing indomethacin.

Glossary definitions and references:

Scientific and Ayurvedic Glossary list for “Impact of vehicles on indomethacin's in-vivo performance”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.

1) Table:
Table refers to a systematic arrangement of data, often used to summarize information. In the context of this research, tables are used to present experimental results, formulations, and measurements in a clear and organized manner, facilitating easy comparison and analysis of the outcomes from cream and gel formulations of indomethacin.

2) Water:
Water is a critical solvent used in pharmaceutical formulations, especially in creams and gels. It acts as a medium for dissolving other ingredients and providing the necessary consistency. In this study, purified water is utilized in preparing the formulations, ensuring they are suitable for topical application.

3) Inflammation:
Inflammation is a biological response to harmful stimuli such as pathogens or tissue injury. In this study, inflammation was induced in rats to test the efficacy of indomethacin formulations. Understanding inflammation is crucial for evaluating the anti-inflammatory effects of drugs like indomethacin in therapeutic contexts.

4) Study (Studying):
A study refers to a systematic investigation undertaken to discover or interpret facts. In this research, the study focuses on assessing the performance of various topical formulations containing indomethacin. It includes in-vivo evaluations to determine the effectiveness of creams and gels in reducing inflammation.

5) Animal:
Animal refers to living organisms used in scientific research for experimentation. In this context, Wistar strain albino rats were employed as subjects to evaluate the effectiveness of indomethacin formulations. Using animals allows researchers to observe physiological responses to treatments in a controlled environment.

6) Drug:
A drug is a chemical substance used for treating, curing, or preventing diseases. Indomethacin, a non-steroidal anti-inflammatory drug (NSAID), serves as the active ingredient in the formulations being studied for its ability to alleviate inflammation when applied topically.

7) Performance:
Performance relates to the effectiveness of the formulations in achieving desired outcomes. In this study, the performance of both the cream and gel formulations of indomethacin was evaluated based on their ability to reduce paw size in inflammatory conditions, providing insight into their therapeutic capabilities.

8) Science (Scientific):
Science refers to the systematic study of the structure and behavior of the physical and natural world through observation and experiment. The research conducted falls under pharmaceutical science, specifically focusing on drug formulation and its effects, demonstrating the scientific principles in action.

9) Alam (Alaṁ):
Alam refers to a geographical location, relevant as it connects to Shah Alam, Malaysia, where the research was conducted. The context of regional research facilities supports local educational and scientific developments, emphasizing the importance of geographical ties in academic studies.

10) Sah:
Shah is part of the name of Shah Alam, a city in Malaysia. It emphasizes the location of the research institution involved in the study. The presence of academic institutions in such areas contributes to the development of local expertise in pharmaceutical sciences.

11) Hand:
Hand often relates to the application of treatments in contexts such as massages or topical applications. In this study, the application of the cream or gel formulations would be performed by hand onto the affected area, highlighting the importance of direct application in therapeutic use.

12) Pain:
Pain is a symptom often treated with anti-inflammatory drugs. The study's primary aim is to evaluate indomethacin’s effectiveness in alleviating pain associated with inflammation. Understanding pain management is crucial in developing effective pharmaceutical applications for patients experiencing discomfort.

13) Activity:
Activity refers to the functional effects of the drug, in this case, the anti-inflammatory activity of indomethacin. Recognizing the active properties of a drug is essential for assessing its potential benefits and therapeutic applications in inflammatory conditions.

14) Medium:
Medium denotes the environment or vehicle through which reactions occur or substances are delivered. In topical formulations, the medium is critical for the distribution of active ingredients on the skin, affecting drug absorption and efficacy in treating local conditions.

15) Blood:
Blood plays an important role in systemic drug distribution. Though the study focuses on topical administration to minimize systemic absorption, understanding blood’s role helps clarify the pharmacokinetics of drugs and their potential effects throughout the body.

16) Hind:
Hind refers to the hind limbs of the rats used in this study, where inflammation was induced. The significance of this anatomical site highlights the relevance of choosing appropriate body parts for studying local inflammation and drug effects.

17) Pharmacological:
Pharmacological relates to the branch of medicine concerned with the uses, effects, and modes of action of drugs. This study examines the pharmacological actions of indomethacin in reducing inflammation, contributing to the understanding of NSAIDs in clinical settings.

18) Discussion:
Discussion is a critical part of research where findings are interpretted, contextualized, and analyzed relative to existing literature. In this study, the discussion section would elucidate the implications of the results, addressing how the findings contribute to the field of pharmaceutical research.

19) Substance:
Substance generally refers to a type of matter with a specific chemical composition. In this study, indomethacin is the active substance being tested in various formulations and serves as a key component for evaluating therapeutic efficacy in inflammation reduction.

20) Pregnant:
Pregnant refers to the state of carrying a developing fetus, which is relevant when considering the safety and systemic absorption of topical drugs. Caution is advised in using NSAIDs during pregnancy due to potential effects on fetal development, warranting careful study of formulations.

21) Mineral:
Mineral refers to naturally occurring inorganic substances often used in pharmaceutical formulations. In the context of this study, mineral oil, as part of the cream base, may enhance the formulation’s effectiveness as a topical agent by improving texture and absorption properties.

22) Surface:
Surface refers to the external layer of a material or interface at which drug application occurs. In topical formulations, ensuring the surface area is maximized during administration assists in effective drug absorption and therapeutic impact, especially in localized treatments.

23) Reason:
Reason denotes the justification or explanation for a specific action or decision made in the research. Highlighting reasons behind choosing particular formulations helps clarify the rationale for the research design and its methodology.

24) Rasa (Rasha):
Rasha is a reference to one of the authors involved in the study. Acknowledging all contributors recognizes the collaborative nature of research and highlights the diverse expertise involved in developing the formulations and conducting the experiments.

25) Milk:
Milk, while not directly applicable in this study, is relevant in pharmaceutical contexts as a natural emulsion. Discussing similar substances can help in understanding drug delivery systems, as comparisons could be drawn to topical formulations in stability and absorption characteristics.

26) Dish (Dis):
Dish typically refers to a container used for mixing or preparing substances in laboratories. In the context of this study, using a porcelain dish was part of the preparation process for the cream and gel formulations, which reflects the importance of equipment in pharmaceutical compounding.

Other Science Concepts:

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Discover the significance of concepts within the article: ‘Impact of vehicles on indomethacin's in-vivo performance’. Further sources in the context of Science might help you critically compare this page with similair documents:

Comparative study, Therapeutic agent, Future research, Data analysis, Time constraints, Statistically Significant, Statistical evaluation, Experimental group, Research article, Active ingredient, Stability study, Dosage form, Non steroidal anti inflammatory drug, Wistar strain albino rats, Controlled Group, In vitro studies, Raw material, Indomethacin, Non-steroidal anti-inflammatory drugs (NSAIDs), Standard deviation, In vivo studies, Inflammatory response, PH determination, Vernier caliper, Student t-test, Gel formulation, First pass effect, Gelling agent, Mean value, Topical formulation, Formalin injection, Cream formulation, Cyclooxygenase inhibition, Controlled condition.

Concepts being referred in other categories, contexts and sources.

Physical stability, First hour.

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