A Practice Note explaining the procedure for obtaining a preliminary or special injunction in a Pennsylvania court of common pleas civil case. This Note covers applying for a preliminary injunction (either ex parte or with notice), filing and serving the necessary documents, providing notice of a hearing on the motion, preparing for and presenting at the hearing, and posting the required bond or cash deposit. This Note also identifies post-hearing issues that may arise, including using a motion to dissolve or to modify the preliminary injunction, filing an appeal to challenge an order regarding a preliminary injunction, and the moving party's liability if a court dissolves the preliminary injunction or reverses it on appeal.