What are some after affects of taking cipro (ciprofloxacin)?

Lots, but not all pt: Most every drug may cause an allergic reaction with rash, hives, itching, trouble breathing, swelling, etc. This should be treated right away. Other side effects: dizziness, fainting, rapid pulse, sudden joint pain, bruising, swelling, diarrhea, confusion, seizure, yellow skin, dark urine, numbness, nausea, vomiting, sleep problems, blurred vision, and others.