Bethanechol is a synthetic cholinergic agent with pharmacological activity related to acetylcholine. It stimulates parasympathetic mechanisms, increases detrusor muscle tone, and promotes bladder contraction, which can facilitate urination in functional urinary retention when there is no mechanical obstruction. It may also increase gastrointestinal motility.
How it works
Who may be prescribed this medicine
Research and clinical evidence
Bethanechol has been used clinically for nonobstructive functional urinary retention and neurogenic bladder atony. Its pharmacological effects have been well characterized: the medicine increases detrusor tone and can produce bladder contractions sufficient to initiate urination. Effects on the urinary tract may begin approximately 30 minutes after oral administration, with maximum effects more commonly occurring within 60–90 minutes.
A clinical study by Diokno and Lapides compared different routes of bethanechol administration in patients with urinary retention. Subcutaneous administration produced a faster and greater change in bladder pressure, while oral administration produced a longer-lasting effect. The authors also reported clinical usefulness of oral bethanechol in the rehabilitation of patients with decompensated bladders.
Modern clinical reviews continue to describe bethanechol as a therapeutic option for postoperative and postpartum urinary retention and for urinary voiding disorders associated with neurogenic bladder atony.
Bethanechol is used to stimulate bladder contraction in functional disorders affecting bladder emptying.
Main indications include:
The medicine is intended for situations in which urinary retention is not caused by mechanical obstruction. Bethanechol enhances parasympathetic stimulation of the urinary bladder and increases detrusor contractile activity.
Take orally as prescribed by a healthcare professional. The tablet should be swallowed rather than chewed. To reduce the likelihood of nausea and vomiting, official prescribing information recommends taking bethanechol one hour before or two hours after meals. The specific dose and treatment duration should be determined by a healthcare professional according to the cause of urinary retention and the patient's clinical condition.
Side Effects
Seek medical attention for severe abdominal pain, breathing difficulties, fainting, or other serious reactions.
