Article: Tolterodine

Tolterodine
Systematic (IUPAC) name
2-[3-[bis(1-methylethyl)amino]- 1-phenyl-propyl]-4-methyl-phenol
Identifiers
CAS number	124937-51-5
ATC code	G04BD07
PubChem	60774
DrugBank	APRD00146
Chemical data
Formula	C22H31NO
Mol. weight	325.488 g/mol
Pharmacokinetic data
Bioavailability	?
Protein binding	Approximately 96.3%.
Metabolism	?
Half life	1.9-3.7 hours
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status
Routes	?

Tolterodine (ATC code: G04BD) is an antimuscarinic drug that is used to treat urinary incontinence. It is sold under the trade name Detrol.

Tolterodine acts on M2 and M3 subtypes of muscarinic receptors whereas most antimuscarinic treatments for overactive bladder only act on M3 receptors making them more selective. Tolterodine, however, although it acts on two types of receptors, has less side effects than other antimuscarinics eg. oxybutynin (which is selective for M3 only) as tolterodine targets the bladder more than other areas of the body. This means that less drug needs to be given daily (due to efficient targeting of the bladder) and so there are less side effects eg. hyposalivation, constipation, decreased gastric motility.