Comparative Phytochemical Screening and Estimation of Bioactive Constituents of Leaves of Lagerstroemia parviflora, Gardenia latifolia and Terminalia tomentosa

Medicinal plants have bioactive compounds which are used for curing of various human diseases and also play an important role in healing. Secondary constituents contain alkaloids, flavonoids, phenol, saponin, steroids and tannins. Medicinal plants have anticancer, antimicrobial, antidiabetic, antidiuretic and anti-inflammation activities. The increasing interest in powerful biological activity of secondary metabolites outlined the necessity of determining their contents in medicinal plants.  Gardenia latifolia (G. latifolia Rubiaceae) is commonly known as Indian boxwood or Ceylon boxwood, is a densely foliaceous small tree that occurs throughout the greater parts of Indian common in deciduous forests along the streams. The stem bark and fruits are reported to be used in the treatment of various ailments such as snake bite, skin diseases, stomach pains, caries in humans and ephemeral fever in live stocks. Terminalia tomentosa (T. tomentosa Combretaceae) occurs frequently in Indonesia, Malaysia, China and India as wasteland weed and also found in most parts of the world with a warm climate in dry, sandy and alkaline soils.  The powdered leaves are useful for fast healing of wounds, as purgative, to treat liver problems, to promote sexual health, to relieve stomach ache, headache, also applied in sprain to ease swelling and pain. In Indian Ayurvedic system, Lagerstroemia parviflora (L. parviflora, Lythraceae) are well-known plants used for major and minor ailments. The aim of the present study is to examine leaf of G. latifolia, T. tomentosa and L. parviflora for phytochemical profile. Qualitative analysis of various phytochemical constituents and quantitative analysis of total phenolics and flavonoids were determined by the well-known test protocol available in the literature. Quantitative analysis of phenolic and flavonoids was carried out by Folins Ciocalteau reagent method and aluminium chloride method respectively. Phytochemical analysis revealed the presence of phenols, flavonoids, tannins, saponins, alkaloids, fixed oil and fats. The present study concluded that the crude extract of G. latifolia, T. tomentosa and L. parviflora is a rich source of secondary phytoconstituents which impart significant antioxidant potential. T &nbsp

COVID-19: A Global Pandemic of 21st Century

In last of 2019, the Centers for Disease Control and Prevention started monitoring the outbreak of a new corona virus, SARS-CoV-2, which causes the respiratory illness now known as COVID-19. Authorities first identified the virus in Wuhan, China. More than 82542 case of Corona virus in China at 31 March 2020. Health authorities have identified many other people with COVID-19 around the world. On 31 March 2020, the virus spread more than 750890 People in the World. The World Health Organization (WHO) has declared a public health emergency relating to COVID-19. Since then, this strain has been diagnosed in several residents of world. The CDC have advised that it is likely to spread to more people. COVID-19 has affected at least 213 countries or territories or areas. The first people with COVID-19 had links to an animal and seafood market. This fact suggested that animals initially transmitted the virus to humans. However, people with a more recent diagnosis had no connections with or exposure to the market, confirming that humans can pass the virus to each other. Corona viruses will infect most people at some time during their lifetime. Corona viruses can mutate effectively, which makes them so contagious. Information on the virus is scarce at present. In the past, respiratory conditions that develop from corona viruses, such as SARS and MERS, have spread through close contacts. On 17 February 2020, the Director-General of the WHO presented at a media briefing the following updates on how often the symptoms of COVID-19.However, while some viruses are highly contagious, it is less clear how rapidly corona viruses will spread. Symptoms vary from person-to-person with COVID-19. It may produce few or no symptoms. However, it can also lead to severe illness and may be fatal. On 11 March 2020, WHO declared Novel Corona virus Disease (COVID-19) outbreak as a Pandemic. Keywords: WHO, ICMR, SARS-CoV-2, Bats, Wuhan City, Pneumonia, Respiratory Infection, Pandemi

Formulation, Development and Evaluation of Chewable Bi-layered Tablets for Treating Gastro Esophageal Reflux Disease

The purpose of this research work was to formulate raft-forming chewable bilayer tablets of sodium alginate using a raft-forming agent along with gas-generating agents. Tablets were prepared by wet granulation and evaluated for raft strength, acid neutralization capacity, weight variation, % drug content, thickness, hardness, friability and in vitro drug release. Various raft-forming agents were used in preliminary screening. The amount of sodium alginate, amount of calcium carbonate and amount sodium bicarbonate were selected as variables. Raft strength, acid neutralization capacity and drug release at 30 min were selected as responses.Tablets containing sodium alginate were having maximum raft strength as compared with other raft-forming agents. Acid neutralization capacity and in vitro drug release of all factorial batches were found to be satisfactory. Prepared tablets were found to be pharmaceutically equivalent to the marketed product. It was concluded that raft-forming chewable bilayer tablets prepared using an optimum amount of sodium alginate, calcium carbonate and sodium bicarbonate could be an efficient dosage form in the treatment of gastro oesophageal reflux diseases. Keywords: Chewable bilayer tablet, Sodium alginate, Raft forming agent, Acid Neutralizing capacit

Formulation, Development and Evaluation of Uncoated Bilayer Tablet of Anti-Hypertensive Agents

The present research work was carried out to Formulate and evaluation of bilayer tablet dosage form for the treatment of Hypertension.The objective of this study to compare the specific characteristics of Metoprolol [beta selective (cardio selective) adrenoreceptor blocking agent] and Hydrochlorothiazide (Thiazide Diuretics]) in order to design stable formulation. It can be concluded that bilayer tablet were successfully formulated to achieve immediate release of Hydrochlorothiazide (HCTZ)  and tailored release of Metoprolol (MPL)by using Dual Release Drug Absorption System(DUREDAS technology).Both drugs were found to be stable in Bilayer tablet formulation and were found to be stable for few months. This bilayer tablet dosage form increases the stability which may reduce loss and cost of formulation. It improves the benefits of producer, retailer, and patients. Recently, greater attention has been focused on development of bilayer tablet formulations. Over the past 30 years, the expenses and complications involved in marketing new drug entities have increased with concomitant recognition of therapeutic advantages of conventional drug delivery system. Several pharmaceutical companies are currently developing bi-layer tablets, for a variety of reasons: patent extension, efficient pharmacological effect, better patient compliance, etc. Bilayer tablet is becoming new approach for the successful drug delivery system and for better stability in combination. Bilayer tablets can be primary option to avoid chemical incompatibilities between APIs by physical separation. Keywords: Bilayer tablet, DUREDAS Technology, Antihypertensive, Metoprolol, Hydrochlorthiazid