The current outbreak of novel Coronavirus Disease-2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a major pandemic situation and a catastrophe for humans. COVID-19 is a severe infectious disease particularly of the respiratory system characterized by fatal complications such as severe acute respiratory distress syndrome (SARS), pneumonia, cardiac arrhythmia, kidney failure/ multiple organ failure and even death. Since its discovery, the SARS-CoV-2 has spread across 213 countries or territories, causing more than 8.5 million people with a rising death toll over 5.5 million people (as of June 2020, WHO). In fact, the current looming crisis of COVID-19 has become an increasingly serious concern to public health. It has affected lives of millions of people with severe impact on health systems and economies globally. Since there are no specific drugs and/or vaccines available so far, combating COVID-19 remains to be a major challenging task. Therefore, development of potential and effective treatment regimens (prophylactic/therapeutic) is urgently required which could resolve the issue. In this review, we summarize the current knowledge about the coronavirus, disease epidemiology, clinical manifestations and risk factors, replication of the virus, pathophysiology and host immune responses of SARS-CoV-2 infection. The therapeutic interventions and prophylactic measures along with precautionary measures are the frontline approaches that could be undertaken in order to control and prevent the spread of the deadly and highly contagious COVID-19 are also detailed herein.

Advancement in nanotechnology has unleashed the therapeutic potentials of dietary polyphenols by enhancing bioavailability, improving biological half-life, and allowing site-specific drug delivery. In this review, through citation of relevant literature reports, we discuss the application of nano-pharmaceutical formulations, such as solid lipid nanoparticles, nano-emulsions, nano-crystals, nano-polymersomes, liposomes, ethosomes, phytosomes, and invasomes for dietary polyphenols. Following this, we highlight important studies concerning different combinations of nano formulations with dietary polyphenols (also known as nanophytopolyphenols). We also provide nano-formulation paradigms for enhancing the physicochemical properties of dietary polyphenols. Finally, we highlight the latest patents that were granted on nano-formulations of dietary polyphenols. Based on our review, we observe that nanosized delivery of herbal constituents, spices, and dietary supplements have the ability to improve biological processes and address issues connected with herbal treatments.

The foremost intention of present research was the preparation and assessment of mouth dissolving formulation Rivaroxaban and its validation. During present work, this tablet was formulated by straight compression technique by means of Cros-carmellose sodium and Sodium starch glycolate as super-disintegrants (concentration of 2, 4, 6%) and Avicel 102 as a binder. The formulated preparations were exposed to different consideration parameters like hardness test, friability test, disintegration test, release of drug and content of drug. The calibration curve of API using solvent phosphate buffer pH 6.8 was carried out. All prepared formulations exposed to different assessment parameters have shown the findings within prescribed limit. Due to the large concentration of super disintegrants in F8, disintegration time can reach 29±0.06 seconds. In used buffer, drug release was calculated at intervals of 0, 2, 4, 6, 8, 10, and 12 minutes. The F8 demonstrates 96.5±0.567 percent medication release. UV spectrophotometric validation was performed for the quantification of Rivaroxaban in bulk. Rivaroxaban was estimated at 247nm in phosphate buffer 6.8. The linearity range was observed 2–12µg/ml.

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