Sold under the name “Toviaz”, Fesoterodine is indicated for the treatment of overactive bladder which is characterized by urinary frequency, urgency, and incontinence. It treats these symptoms by “relaxing the involuntary muscle that is found in the wall of the bladder”. According to etdoctor.co.uk, this muscle “can sometimes contract in uncontrollable spasms, and this is often referred to as having an overactive bladder”. Bear in mind that you should not use Fesoterodine if you experience trouble urinating, or if you have a blockage in your stomach / intestines. And in order to make sure that this drug is safe for you, you should first tell your doctor if you’ve ever had glaucoma, liver/ kidney disease, or if you’ve ever experienced severe constipation. Additionally, consulting your healthcare provider before using Fesoterodine is highly recommended if you are pregnant or breastfeeding, considering it is not known if this medication could harm the unborn baby/ the nursing infant. It is worth noting that you may take Fesoterodine with or without food. As for its common side effects, drugs.com mentions the following: dry mouth and constipation. Remember to call your doctor, though, if you have chest pain, hallucinations, painful urination, or severe stomach cramps.