What are some less common side effects associated with Toviaz?

Less common side effects of Toviaz may include dry eyes and trouble emptying the bladder. If these bother you or do not go away, tell your doctor.

Certain side effects can be more serious and may require immediate medical attention. These include:

- Constipation that lasts three or more days
- Severe stomach or abdominal pain
- Kidney problems; signs may include burning and/or painful urination, lower back pain, and fever
- Fast heartbeat
- Fainting
- Serious allergic reaction, which are rare, include
- Any rashes, itching or swelling (especially on the face, tongue or throat)
- Severe dizziness
- Trouble breathing. If you have signs of a serious allergic reaction, seek medical care immediately.