Which of the following conditions is a potential side effect of Bactrim?

Bactrim, a combination antibiotic containing trimethoprim and sulfamethoxazole, is known to have several potential side effects, one of which is photosensitivity. Photosensitivity refers to an increased sensitivity to sunlight, where exposure can lead to exaggerated sunburns or rashes. This adverse effect occurs because Bactrim can lead to changes in the skin's response to ultraviolet light, making patients more susceptible to sunburn or rashes upon sun exposure.

Bactrim does not typically cause hypertension, blurred vision, or insomnia as common side effects, which distinguishes photosensitivity as a noteworthy concern when advising patients about potential reactions to the medication. It is important for healthcare providers to educate patients about this risk, encouraging them to take precautions such as wearing protective clothing and using sunscreen while on Bactrim to mitigate the risk of photosensitivity reactions.