Accidentally took and chewed half a pill of Aleve, thinking it was a TUMS tablet, which was laying directly next to it on the dresser. Within minutes, I noticed the burning & odd sensation, and tried to spit out remainder of it.. Rinsed mouth thoroughly, then took the intended TUMS. Had a past with a very mild allergy to ibuprofen.. Is this incident anything to be concerned about? No immediate side effects.