PRECAUTIONS: Before taking phenazopyridine/hyoscyamine/butabarbital, tell your doctor or pharmacist if you are allergic to any of these drugs; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: kidney disease, liver disease, blood disorders (e.g., G6PD deficiency, hemolytic anemia, porphyria), glaucoma, urinary blockage problems, enlarged prostate.Before using this medication, tell your doctor or pharmacist your medical history, especially of: stomach or intestinal disorders, overactive thyroid (hyperthyroidism), heart problems (e.g., coronary artery disease, congestive heart failure, arrhythmias), high blood pressure, mental/mood disorders, history of drug abuse, severe breathing problems, certain nervous system problems (autonomic neuropathy), myasthenia gravis.This drug may make you dizzy or drowsy or cause blurred vision. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely.Avoid alcoholic beverages while using this medication, since alcohol may intensify the side effects.Before having surgery, tell your doctor or dentist that you are using this medication.Phenazopyridine can dye your urine and tears orange-red. This may stain clothing and contact lenses. Do not wear contact lenses while using this medication. Urine and tears will return to normal color after the medication is stopped.This drug may increase the risk for heatstroke because it decreases sweating. Avoid becoming overheated in hot weather, saunas, and during exercise or other strenuous activity.Older adults may be more sensitive to the side effects of this drug, especially drowsiness, confusion, constipation, difficulty urinating, change in amount of urine, or yellowing skin/eyes. Drowsiness and confusion can increase the risk of falling.This medication is not recommended for use during pregnancy. Consult your doctor for more details.This medication passes into breast milk. Consult your doctor before breast-feeding.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Use the pill identifier tool on RxList.