You should not use this medication if you are allergic to lacosamide.
Before you take lacosamide, tell your doctor if you have kidney or liver disease, or a serious heart condition such as "AV block," heart failure, or sick sinus syndrome (unless you have a pacemaker).
You may have thoughts about suicide while taking this medication. Your doctor will need to check you at regular visits. Do not miss any scheduled appointments.
Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, depression, anxiety, panic, or if you feel hyperactive, talkative, restless, agitated, aggressive, angry, impulsive, or have thoughts about suicide or hurting yourself.