DO NOT crush, break, chew or dissolve SUDAFED 12 hour, SUDAFED 24 hour, SUDAFED 12 hour Pressure + Pain as they are extended release products and doing so will interfere with the proper release of the medicine. SUDAFED Congestion and SUDAFED PE Congestion are immediate release products that may be crushed to allow for easier administration. DO NOT break in half to take a half dose as the product is not designed to split. Please refer to the product label for the appropriate dosing directions as well as the warnings prior to taking any medicine.