It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to check for unwanted effects.
Solifenacin may cause a serious type of allergic reaction called angioedema. Angioedema may be life-threatening and requires immediate medical attention. Stop taking this medicine and check with your doctor right away if you have a rash; itching; a large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs; trouble with breathing; or chest tightness while you are using this medicine.
This medicine may cause drowsiness, confusion, or blurred vision. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are not alert or not able to see well.
This medicine may make you sweat less, causing your body temperature to increase. Use extra care not to become overheated during exercise or hot weather while you are taking this medicine, since overheating may result in heat stroke.
This medicine may cause constipation. Call your doctor if you get severe stomach pain or become constipated for 3 or more days.
This medicine may cause dry mouth. For temporary relief of mouth dryness, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your medical doctor or dentist.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.