A nurse is caring for a client recently prescribed doxycycline (Doryx) for the treatment of a urinary tract infection. Which of the following statements below applies to doxycycline (Doryx)?

The correct answer is A, C, D, and E. A: Doxycycline should not be taken if lactating as it can pass into breast milk. C: Doxycycline may cause photosensitivity, increasing the risk of sunburn. D: Doxycycline should not be taken with antacids as they can reduce its absorption. E: Doxycycline may cause discoloration of the teeth, especially in children under 8 years old. These statements are accurate based on doxycycline's pharmacological properties and potential side effects. Choices B, F, and G are incorrect as hyperglycemia is not a common side effect of doxycycline and options F and G are not applicable.