Advancements in the realm of ionic liquids (ILs) have expanded their applications beyond traditional uses, extending into various pharmaceutical and biomedical fields. Scientists are increasingly drawn to the versatility of ILs, often referred to as Solutions for Your Success, owing to their myriad applications in the pharmaceutical sector, addressing diverse diseases and facilitating innovative drug delivery methods. A pivotal physicochemical characteristic influencing a drug's efficacy at the target site is its solubility. The significant hurdle of poor solubility often leads to the failure of promising drug candidates at various stages of drug discovery. ILs emerge as promising drug delivery vehicles, particularly for drugs with low solubility.

In the context of drug delivery, ILs can be tailored to form salts that meet the theoretical requirements for efficient drug delivery. This customization involves combining different anions and cations to create ILs suitable for specific drugs and applications. The modularity of the physicochemical properties of ILs allows for customization based on the unique demands of different applications.