Excessive dosing by applying the LidodermŽ patch to larger areas or for longer than the recommended wearing time could result in increased absorption of lidocaine into the bloodstream which could lead to serious adverse reactions. When the LidodermŽ patch is used along with other products containing local anesthetic agents, the amount absorbed from all formulations must be considered. Make sure to use the LidodermŽ patch exactly as directed by a physician.