Final answer:
Medications are most effective in preventing urge incontinence, which is caused by uncontrolled bladder muscle contractions, by relaxing the detrusor muscle.
Step-by-step explanation:
Medication is most helpful to prevent urge incontinence. This type of incontinence is characterized by uncontrolled contractions of the detrusor muscle, leading to a sudden, intense urge to urinate and involuntary loss of urine. Treatment for urge incontinence often includes medications that relax the detrusor muscle, providing better control over bladder function. In contrast, stress incontinence is typically managed with pelvic floor exercises, whereas overflow incontinence and functional incontinence have other specific management approaches.