A nurse is providing teaching to a client who has a new prescription for ciprofloxacin. Which of the following adverse effects should the nurse include in the teaching?

Choice A rationale Constipation is not a commonly associated adverse effect of ciprofloxacin. Fluoroquinolones primarily impact gastrointestinal motility through alterations in gut flora and direct irritation, often leading to diarrhea or abdominal discomfort rather than constipation. The drug's mechanism does not typically promote slowed bowel movements or decreased peristalsis. Choice B rationale Weight gain is not a typical adverse effect of ciprofloxacin. Fluoroquinolones do not directly influence metabolic pathways or fluid retention in a manner that would lead to increased body mass. Adverse effects are usually related to gastrointestinal disturbances, neurological effects, or musculoskeletal issues. Choice C rationale Phototoxicity is a significant adverse effect of ciprofloxacin, a fluoroquinolone antibiotic. This occurs due to the drug's ability to absorb ultraviolet radiation, leading to a photochemical reaction that damages skin cells. This damage can manifest as severe sunburn, blistering, or rash upon exposure to sunlight. Choice D rationale Bradycardia is not a recognized adverse effect of ciprofloxacin. While some antibiotics can rarely affect cardiac conduction, ciprofloxacin's primary cardiovascular concerns relate more to QT prolongation and potential arrhythmias, not typically a decrease in heart rate. Its mechanism does not directly depress sinoatrial node function.