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Levaquin has been known to cause these kinds of reactions, however, most people can take it just fine with no side effects. The bad taste in mouth usually goes away on its own, once the medication clears your system. I'm not familiar enough with the other side effects to offer any help. You can google "levaquin side effedts" and find out all the info you want. However, be careful, and remember not to believe everything you read.
The best advice, always familiarize yourself with your medication before you take it. Read the insert you get with the prescription, and always let someone (pharmacist or doc) know before you take anything in conjunction with a prescription med.\
Hope you find some info that helps.