The present invention relates to a device, system and a method for optimizing syringe based drug delivery profile with a treatment element and in particular, to such a device, system and method in which optimization is based on a plurality of data that directly and/or indirectly affect the optimization of the drug delivery profile. The device facilitating syringe based drug delivery, by optimizing drug delivery of the injected drug, records user's activity, and data relative to drug injections, comprising a disposable unit configured for a single use period and a rechargeable reusable unit having electronics comprising a sensor module.