As far as I'm aware mrs d I have never previously used levofloxacin, I have taken other antibiotics before such as erythromycin and amoxicillin with no adverse effects. I have read on the Internet that levofloxacin is a inhibitor of the enzyme that metabolises MDMA but I cannot find any information of side effects of the interaction?!?

Let me also state mrs d that I am by no means a regular illegal drug user, I would probably say that since the age of 18 I have taken recreational drugs 10 times without experiencing any adverse effects to my health.