. A nurse is caring for a client who is taking alendronate to treat osteoporosis. The nurse should monitor for which of the following adverse effects?

A. Drowsiness. Alendronate, a bisphosphonate used to treat osteoporosis, does not cause drowsiness. It primarily affects bone metabolism rather than the central nervous system. If a client experiences drowsiness, it is likely due to another cause rather than the medication itself. B. Dyskinesia. Dyskinesia refers to involuntary movements often associated with neurological disorders or medications affecting dopamine, such as antipsychotics or Parkinson’s medications. Alendronate does not affect dopamine or the nervous system, making dyskinesia an unlikely adverse effect. C. Musculoskeletal pain. A known side effect of alendronate is musculoskeletal pain, including bone, joint, and muscle discomfort. This occurs due to the medication’s effects on bone remodeling and turnover. While mild pain may resolve on its own, persistent or severe pain should be reported to the provider as it may require dose adjustment or discontinuation. D. Weight gain. Alendronate does not cause weight gain. It primarily acts on bone tissue to inhibit osteoclast-mediated bone resorption, preventing further bone loss. Clients experiencing unexplained weight gain should be evaluated for other potential causes, such as metabolic conditions or lifestyle factors.