Humalog Mix Kwik Pen 75/25 3.5mg is a pre-filled insulin pen designed for the treatment of diabetes mellitus. It contains a premixed formulation comprising 50% rapid-acting Insulin Lispro and 50% steady-acting Insulin Lispro Protamin. This combination helps manage blood glucose levels by providing quick relief post-meal and sustained control throughout the day. This insulin pen is user-friendly, featuring an adjustable dose selector and a simple injection mechanism, making it suitable for self-use. It supports a flexible insulin routine and can be used alongside a healthy diet and regular exercise to effectively control blood sugar levels in diabetic patients.