Consult a health care practitioner if symptoms persist or worsen. If symptoms such as fever, nausea, vomiting, dysuria, spasms, or blood in urine occur, discontinue use and consult a health care practitioner. Consult a health care practitioner prior to use, if you are taking protease inhibitors, any prescription medication, urinary acidifying medication, or eating highly acidic foods. Consult a health care practitioner prior to use if you have gallstones, anaemia, or if you have liver, intestinal or gall bladder disease. Hypersensitivity, such as allergy, has been known to occur; in which case discontinue use. Use of Uva Ursi may cause discoloration of the urine. Do not use if you have heart disease, high or low blood pressure, kidney or liver disorder, diabetes or edema (swelling of hands, face, and feet), taking products containing diuretics, or are taking anticoagulant medications. Stop use and seek medical attention immediately if you experience dizziness, confusion, muscle weakness or pain, abnormal heart beat and/or di culty breathing. Do not use if you are pregnant or breastfeeding. Keep out of reach of children. Do not exceed recommended dose.