Feature: 1. Dose/rate calculator: get the infusion rate from body weight, desired dose, drug amount and total volume. Built-in commonly used drug information. Custom drugs, backup/restore function (only for Full-version). 2. Infusion time calculator: get the infusion time from fluid volume and desired rate ; tap screen to get the drops and drip rate spontaneously. 3. Infusion rate calculator: get the infusion rate from fluid volume and desired infusion time.