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Tolterodine

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Trade names
  
Detrol, Detrusitol

MedlinePlus
  
a699026

ATC code
  
G04BD07 (WHO)

CAS ID
  
124937-51-5

Trade name
  
Detrol, Detrusitol

AHFS/Drugs.com
  
Monograph

Routes ofadministration
  
By mouth

Molar mass
  
325.488 g/mol

Bioavailability
  
77%

Tolterodine

Pregnancycategory
  
AU: B3US: C (Risk not ruled out)

Tolterodine (trade names Detrol, Detrusitol) is an antimuscarinic drug that is used for symptomatic treatment of urinary incontinence.

Contents

It is marketed by Pfizer in Canada and the United States by its brand name Detrol. In Egypt it is also found under the trade names Tolterodine by Sabaa and Incont L.A. by Adwia.

How to pronounce tolterodine detrol memorizing pharmacology flashcard


Use

Detrusor overactivity (DO, contraction of the muscular bladder wall) is the most common form of urinary incontinence (UI) in older adults. It is characterized by uninhibited bladder contractions causing an uncontrollable urge to void. Urinary frequency, urge incontinence and nocturnal incontinence occur. Abnormal bladder contractions that coincide with the urge to void can be measured by urodynamic studies. Treatment is bladder retraining, pelvic floor therapy or with drugs that inhibit bladder contractions such as oxybutinin and tolterodine.

Pharmacology

Tolterodine acts on M2 and M3 subtypes of muscarinic receptors whereas older antimuscarinic treatments for overactive bladder act more specifically on M3 receptors.

Tolterodine, although it acts on all types of receptors, has fewer side effects than oxybutynin (M3 and M1 selective, but more so in the parotid than in the bladder) 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 fewer side effects.

Side effects of tolterodine

Known side effects:

  • Xerostomia (dry mouth)
  • Decreased gastric motility (upset stomach)
  • Headache
  • Constipation
  • Dry eyes
  • Sleepiness
  • Urinary retention
  • The following reactions have been reported in patients who have taken tolterodine since it has become available:

  • Allergic reactions including swelling
  • Rapid heartbeat or abnormal heartbeat
  • Accumulation of fluid in the arms and legs
  • Hallucinations
  • Contraindications: Not to be used in patients with myasthenia gravis and angle closure glaucoma.

    References

    Tolterodine Wikipedia


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