What adverse effect should patients be warned about when taking ciprofloxacin?

Ciprofloxacin, a fluoroquinolone antibiotic, is known to cause phototoxicity, which is a sensitivity to sunlight that can lead to an increased risk of sunburn or skin rashes upon exposure to sunlight. This occurs because ciprofloxacin can enhance the skin’s reactivity to UV light, making it essential for patients to be informed about the importance of sun protection, such as using sunscreen and wearing protective clothing, while on this medication.

While dry mouth, nausea, and diarrhea can occur as side effects with ciprofloxacin, they are not as specifically significant or distinctive as phototoxicity. Thus, educating patients about phototoxicity is crucial to prevent potential skin damage and ensure safer use of the medication during therapy.