Final answer:
Bethanechol chloride is typically used to treat urinary retention caused by tricyclic antidepressant therapy, as it stimulates bladder contraction to facilitate urination.
Step-by-step explanation:
The drug that is commonly used in the treatment of urinary retention secondary to tricyclic antidepressant (TCA) therapy is bethanechol chloride. Bethanechol is a cholinergic agonist that stimulates muscarinic receptors and can help to relieve urinary retention by increasing bladder muscle contraction, which facilitates urination. It should be noted that managing this adverse effect must be done under medical supervision, as the choice of treatment will depend on the patient's specific situation and overall health.