Is it permissible to adopt the rulings for one who suffers from urinary incontinence ( سلس البول) for someone who experiences urge incontinence resulting from taking certain medications, which disappears upon stopping them, but these medications must be continued?

The leakage of urine that accompanies the urge to urinate has two scenarios: Either it is related to the usual need to urinate and stops afterward, in which case you are not considered to have incontinence. Or it exits continuously and does not cease, or the time it ceases varies; in this case, your ruling is that of one who has incontinence ( سلس ). So, you perform ablution after the time for prayer begins and pray with that ablution as much as you wish until that prayer time ends, and what exits from you then does not harm you.