Question 66

Patients should be advised to avoid prolonged sun exposure while taking doxycycline.

Doxycycline may cause photosensitivity, which can increase the risk of sunburn or skin reactions when exposed to sunlight. Therefore, it is important for patients to limit their sun exposure while undergoing treatment with this medication.

A) tadalafil.

Tadalafil is primarily used to treat erectile dysfunction and benign prostatic hyperplasia and does not have a known association with photosensitivity. Patients taking tadalafil do not need to avoid sun exposure as it does not cause skin reactions from sunlight.

B) risedronate.

Risedronate is a bisphosphonate used to prevent and treat osteoporosis. It does not have a known risk of causing photosensitivity, and therefore, patients are not required to take precautions against sun exposure while using this medication.

C) doxycycline.

Doxycycline is an antibiotic that is well-documented to cause photosensitivity, making patients more susceptible to sunburn. Patients prescribed doxycycline should be informed about this risk and advised to limit their exposure to sunlight or use protective measures such as sunscreen and clothing.

D) atomoxetine.

Atomoxetine is a medication used to treat attention deficit hyperactivity disorder (ADHD) and does not have any known side effects related to photosensitivity. Patients taking atomoxetine do not need to avoid sun exposure as it does not increase the risk of skin reactions from sunlight.

Conclusion

Doxycycline is the only medication among the options provided that necessitates caution regarding sun exposure due to its potential to cause photosensitivity. The other medications listed do not present this risk, making them safe in terms of sun exposure. Thus, advising patients about the importance of avoiding prolonged sun exposure while taking doxycycline is crucial for their safety and well-being.