Final answer:
Sympathomimetic drugs can stimulate the detrusor muscle, increasing urgency to urinate.
Step-by-step explanation:
Sympathomimetic drugs can stimulate the detrusor muscle, which increases the urgency to urinate. These drugs mimic the effects of sympathetic activity by binding to adrenergic receptors and stimulating the target organs. By increasing the activity of the detrusor muscle, sympathomimetic drugs can cause a stronger urge to empty the bladder.