Authors’ Contribution Mukeshchand

Thakur, Sunil Pandey, and Ashmi Mewada have equal contribution in performing experiments, writing, and the discussions of the paper.
Ketoprofen (KP; (RS)-2-(3-benzoylphenyl)-propionic acid) is nonsteroidal anti-inflammatory drug predominantly used in treatment of rheumatoid arthritis and osteoarthritis. It acts as an anti-inflammatory agent by reversible inhibition of cyclooxygenase 1 and 2 enzymes leading to reduced formation of prostaglandin precursors [1, 2]. Dexketoprofen (DE) is the dextrorotatory enantiomer Inhibitors,research,lifescience,medical of ketoprofen. Racemic ketoprofen is used as an anti-inflammatory agent and is one of the most potent in vitro inhibitors of prostaglandin synthesis. The effect is due to the (S)-(+)-enantiomer (dexketoprofen), while the (R)-(−)-enantiomer is devoid of such activity. The racemic ketoprofen exhibits little stereoselectivity in its pharmacokinetics [3]. The Selleck VRT752271 transdermal drug delivery system (TDDS) offers some advantages compared with its corresponding Inhibitors,research,lifescience,medical oral or injectable dosage form applications, such as the provision of steadier drug plasma levels and avoidance of the hepatic first effect [4–6]. Efficacious and safe levels of

the drugs through percutaneous absorption are obtained systemically from formulations like transdermal patches, gels, creams, and sprays. Currently, TDDS relies primarily upon occlusive patches, which is now considered to be Inhibitors,research,lifescience,medical Inhibitors,research,lifescience,medical a mature technology. This system provides controlled release of the drug in patient, enabling a steady blood-level profile, leading to reduced systemic side effects and sometimes improved efficacy over other dosage forms. However, manufacturing of TDDS has historically provided the formulator with some distinct challenges, particularly with the scale-up of multicomponent patches. Additionally, there have also been issues with formulation stability and drug crystallization on longer-term storage. So Inhibitors,research,lifescience,medical the negatives of TDDS have been skin irritation, relatively high manufacturing costs, and less-than-ideal

cosmetic appearance. Transdermal semisolids all such as a gel is an effective alternative to a transdermal patch system. Such a formulation shows a clinically equivalent performance to that of a patch with lesser skin irritation and better compliance [7]. MDTS is a topical aerosol formulated as single phase solution consisting of drug, penetration enhancers, polymers, and solvents. The system developed is a rapid-drying solution containing a volatile component that enables the volume per area of application to be precisely defined. This component also enables the formulation to have uniform distribution on the skin over a defined area after application, without leaving excess vehicle. Hence, this ensures that the dose can be administered in a precise and highly reproducible manner and that aesthetic and transference issues can be avoided.