A nurse is counseling a client who is experiencing urinary incontinence and has a new prescription for oxybutynin extended-release tablets. Which of the following statements should the nurse make?

A. "Avoid consuming high fiber foods while taking this medication.": Oxybutynin can cause constipation, but high-fiber foods help prevent this side effect. Advising the client to avoid fiber would worsen gastrointestinal issues rather than improve safety or efficacy. B. "Limit the amount of water you drink during the day when taking this medication.": Oxybutynin has anticholinergic effects that can cause dry mouth, but restricting fluid intake can increase the risk of dehydration and urinary retention. Clients should maintain adequate hydration. C. "Your urine will become orange colored while taking this medication.": Oxybutynin does not typically change urine color. This statement is inaccurate and may cause unnecessary concern for the client. D. "Avoid strenuous activities in warm environments while taking this medication.": Oxybutynin inhibits sweating due to its anticholinergic properties, increasing the risk of heatstroke during exercise or in hot environments. Clients should be advised to avoid strenuous activity in heat and stay hydrated.