Toviaz (fesoteradine) is a medication used to manage the symptoms of overactive bladder. According to MedlinePlus, it is an antimuscarinic agent that relaxes the muscles of your bladder so that you experience decreased urination and can better control your urinary urges. Typically, you will take 4 mg of Toviaz daily, says the National Library of Medicine.
Common Side Effects
In a placebo-controlled study of 554 patients receiving 4 mg of Toviaz daily, the National Library of Medicine says that 18.8 experienced dry mouth, 4.2 percent had constipation, 1.6 percent developed indigestion, 0.7 percent had nausea and 1.1 percent experienced stomach pain. Additionally, Toviaz caused 3.2 percent of the studied patients to develop a urinary tract infection, 2.5 percent to have a urinary tract infection, 1.4 percent to have dry eyes, 1.3 percent to experience dysuria (painful urination), 1.1 percent to develop urinary retention and 1.6 percent to develop a cough. Toviaz can cause peripheral edema (0.7 percent), back pain (2.0 percent), trouble sleeping (1.3 percent) and a rash (0.7 percent). It is important that you inform your doctor if these side effects last for 3 to 5 days.
Serious Side Effects
According to Drugs.com, Toviaz can cause chest pain, decreased urination, tachycardia (fast heartbeat), difficult urination and swelling of your feet or hands. You should avoid becoming dehydrated as Toviaz decreases your ability to sweat effectively and this can lead to heat stroke. Your doctor may discontinue Toviaz or change its dosage.
Additional Concerns
You should not take Toviaz if you are allergic to fesoterodine or any of its components. You can develop such potentially life threatening reactions as trouble breathing, hives and swelling (edema) of your face, throat or tongue. Call 911 immediately.
The National Library of Medicine says that Toviaz should be avoided if you suffer from glaucoma, urinary retention and gastric retention, a condition in which your digestive tract does not empty properly. Toviaz may cause these conditions to worsen.
It is unclear whether Toviaz can cause harm to your unborn child or pass to your baby during nursing. Notify your doctor if you are pregnant or breastfeeding.
Drugs.com says that you should avoid drinking alcohol when you take Toviaz. Alcohol may worsen the aforementioned side effects.
You should inform your doctor if you are taking such medications as conivaptan, arsenic trioxide, clarithromycin, ketoconazole, quinidine or atazanavir, says Drugs.com. These medications can interact with Toviaz and cause the aforementioned side effects.
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