Avelox can cause serious side effects that can happen at the same time and could result in death. If you get any of the following serious side effects, you should stop taking Avelox and get medical help right away. Talk with your healthcare provider about whether you should continue to take Avelox. Hi, Quinolones (the class of drugs avelox belongs to, do not usually cause allergic reactions. However, some individuals may react adversely to these medicines. Can be Permanently Disabling. Avelox and Avelox Side Effects If you do not know what Avelox is, then you do not know about the very serious Avelox Side Effects that you could experience, and that can and have caused permanent disabling problems for a small percentage of users. Can Moxifloxacin cause Anxiety? Anxiety is a known side effect of Moxifloxacin. Complete analysis from patient reviews and trusted online health resources, including first-hand experiences. Along with its needed effects, moxifloxacin (the active ingredient contained in Avelox) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Avelox (moxifloxacin) is a fluoroquinolone antibiotic that inhibits certain bacteria that may cause infections such as pneumonia, bronchitis, and others that may infect the sinuses, skin or abdomen. Why does moxifloxacin (Avelox) cause anxiety? How often does it occur, and how long does it last? Can it be minimized or avoided? Anxiety is sometimes recognized with the first dose of. Week 20 Think i have finally figured it out My anxiety is 1 or 2 max on a scale of 1-10 and on most days i am totally anxiety free. i got my anxiety after a 2-3x round of antibiotics for sinus about 5 months ago.I watch this video about 1 or 2x a week and helps a lot and i can go about my business as usual for the rest of the week. I am currently taking an antibiotic and it made my anxiety worse at first. It is called Avelox and can have some CNS effects. I also take sudafed daily for a sinus infection and get a tremendous antidepressant effect from it. Has any one experienced, not only anxiety from taking antibiotics, but hyperventilation. I was being treated for an sinus infection with Avelox (antibotic) and experienced anxiety and hyperventilation.