I am a high school Chemistry teacher. This morning, while my back was turned to write on the board, one of my students (age 17) slipped a pill into my coffee mug. This is a thermos-style mug that has a screw-on lid with a small opening; it was obviously a deliberate act). 

About 30 minutes later, when the bell rang to change classes, another student stayed behind to tell me NOT to drink anymore coffee "because [student name] put a white pill in it". Apparently, all 22 of my other students had witnessed this and even clapped and laughed as the perp ran back to her seat when I turned around. I had no idea what had happened and continued drinking my coffee as usual until the 2nd student warned me to stop. 

I quickly went to be checked out by the school nurse who checked my vitals and found an irregular, rapid heartbeat and high blood pressure (both unusual for me). I was sent to the urgent care / occupational med clinic and underwent 3 hours of testing (x-rays, ekg, drug screening, etc). Luckily, no residual problems. 

While I was gone, the student was searched and "Herbal Viagra" was found. She admitted to putting it into my coffee. She was suspended for 5 days. I told the school resource officer that I wanted to file charges against her and he said all she'll get is a "citation" because it isn't actually "criminal". Maybe it's because it wasn't a controlled substance. I can't believe that it's NOT A CRIME to drug someone without their knowledge or consent. Herbal supplements can interact with other meds wreaking havoc on a body. She doesn't know what meds I already take or what allergies I have. I was lucky... this could have turned out far worse than it did. 

What are the legal ramifications of this situation? Is it a criminal act? What about the other 21 students who saw what happened and did/said nothing; just watched me ingest the medicine? Are they not accessories?

I live in Louisiana, by the way. Not sure if that matters.