The primary ingredient in pharmaceutical tablets is the active pharmaceutical ingredient (API), which is the substance that provides the intended therapeutic effect to treat or manage a specific medical condition. Along with the API, tablets typically contain excipients, which are inactive substances used to form the tablet and aid in its stability, absorption, and processing during manufacturing. Excipients can include fillers, binders, disintegrants, and lubricants, enhancing the tablet's overall functionality. The formulation of a tablet can influence how quickly the medication is released in the body, its efficacy, and how well it is tolerated by patients.