Nasal delivery is an alternative to oral or parenteral administration due to certain limitations such as absorption of the drug, drug targeting to particular organs can cause a problem for administration through oral route.  The nasal route has also been successfully used for bypassing the blood-brain barrier and afterword delivering drug molecules to the central nervous system. Also, lag time related to oral drug delivery is reduces by this route and offers noninvasiveness, self-medication, patient comfort, and patient compliance. Extend drug delivery can be attained by different new dosage forms like in situ gel. In situ formulations are drug delivery systems. The in-situ gelling system is a process in which the solution forms of a gel before administration in the body, but once administrated, it undergoes gelation in-situ, to form a gel. In situ gelling system becomes very popular nowadays because of their several advantages over conventional drug delivery systems like a sustained and prolonged release of a drug, reduced Frequency of administration, improved patient compliance and comfort. Approaches towards the various formulation of in-situ gel concerning temperature, pH, and physicochemical conditions. The in situ gel-forming polymeric formulations offer several advantages like sustained and prolonged action reduced Frequency of administration, in comparison to conventional drug delivery systems.  From a manufacturing point of view, the production of such systems is less complex and thus lowers the investment and manufacturing cost. Various evaluation parameters are considered during the preparation of In-Situ gel. Keywords: Nasal Drug Delivery, In Situ gel, gelation, polymers, etc

Background: The drug discovery phases traditionally involve target identification as well as lead optimization through high throughput screening, which is usually time-consuming with a higher risk failure. In the case of new anticancer drugs, drug accessibility remains a great challenge due to high pricing which usually leads to a huge economic burden on a cancer patient. Objective and Methods: Drug repurposing appears to be a better alternative method for drug development. Repurposing with many benefits as faster, cheaper, safer, and easier has become the most sought research strategy nowadays. Large numbers of approved drug are now being studied for cancer. In present review, we furnish recent updates on the field of repurposing especially about prospective anti-cancer agents including selected examples of potent phytochemicals from various authentic databases. Results: We have also detailed the current approaches utilized for repurposing along with the clinical status of the repurposed drug. Conclusion: Drug repurposing has potential and scope for reducing the cost of drug discovery in the oncology field.