It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly and to check for unwanted effects.
Dalfampridine may cause seizures. Stop using this medicine and check with your doctor right away if you have convulsions or seizures while taking this medicine.
Do not take dalfampridine together with other aminopyridine medicines (e.g., compounded 4-AP, fampridine). Taking these medicines together will increase chance for more serious side effects.
Urinary tract infections may occur while using this medicine. Check with your doctor right away if you have the following symptoms while using this medicine: bladder pain, bloody or cloudy urine, difficult, burning, or painful urination, frequent urge to urinate, or lower back or side pain.