A nurse is educating a client about antiretroviral medications. Which action should the nurse take to prevent potential drug interactions?

A. Taking antiretroviral medications on an empty stomach is not universally recommended. Some antiretrovirals require food to improve absorption, while others are affected by food differently. Blanket advice to take medications on an empty stomach can increase the risk of suboptimal absorption or gastrointestinal side effects. B. Mixing antiretroviral medications with alcohol is unsafe and can increase liver toxicity, interfere with medication efficacy, and worsen side effects. Alcohol should generally be avoided while on these medications. C. Grapefruit juice can interact with many medications, including some antiretrovirals, by inhibiting CYP450 enzymes. This can lead to dangerously high drug levels or toxicity. Therefore, clients should avoid grapefruit juice unless specifically instructed otherwise. D. Informing the healthcare provider about all current medications, including over-the-counter drugs and herbal supplements, is crucial to prevent drug interactions. Many antiretrovirals interact with other medications or supplements (e.g., St. John’s Wort) that can reduce efficacy or increase toxicity. This step allows providers to adjust therapy, monitor for interactions, and educate the client safely.