Now you can run your IV with Mag. (Magnesium Sulfate) These are the big guns to stop premature labor if terbutaline injections do not work. Turn on the pump with this cute animated pump with nurse/doctor pose. Click and avi will turn on the pump and adjust the controls, or increase the dose as needed. One bag has your Lactated Ringers solution and the other has Magnesium added with true to life labels on the bag by a rl labor nurse. Remember you would NEVER use pitocin in your IV if you are trying to STOP labor. Pitocin STARTS labor. This product now has sound! Type in the trigger "alarm" to hear it. Use it to help you to remember to adjust the dose or if air gets in your line. Another totally realistic, fabulous product from Genesis Health Products.