Thank you for asking Healthcare majic. My name is Dr Ehsan Ullah & I have gone through your query. you are taking Ciprofloxacin and had three doses of that till now ... your man concer is having a lot of Gas and bowel movements... Gas trouble has several causes including Change in your diet pattern change in your Life style Use of antibiotics Disturbance in Gut (colon) bacterial flora which may be from either of the above mentioned reason or instrumentation of the Lower Gut as in cases of Colonoscopy... an important aspect is that whether this gas trouble is temporary or not... Ciprofloxacin Can lead to Diarrhea and stomach upsets in the form of Nausea / Vomiting Basically irritation of stomach & intestine is a common side effect of Ciprofloxacin but the treating physician weighs such complications against the illness since every drugs has more or less but has side effects ... your second question was regarding use of Xanax along with ciprofloxacin.. well, i haven t seen any interaction between these two in literature ... In case you are prescribed this drug along with Cipro by your physician / Pharmacist then you can use. Regarding Gas trouble, you will have to look for your diet & life style pattern antibiotics cause this issue but that usually subsides with the abtibiotics course completion Probiotics pills or foods / antigas pills can deal with this issue of gas . Hope this may help you. Let me know if anything not clear. Thanks.