What adverse effect is important to highlight when educating a client about niacin?

Highlighting the flushing of the skin as an adverse effect when educating a client about niacin is essential because it is one of the most common and notable side effects associated with this medication. Niacin, also known as vitamin B3, can cause a release of prostaglandins, leading to vasodilation and consequently, flushing, which manifests as redness, warmth, and a tingling sensation on the skin, particularly on the face and neck. This flushing response can be uncomfortable for patients and may deter them from adhering to the medication regimen.

Understanding this adverse effect allows clients to anticipate the reaction, which can often be reduced by taking niacin with food or using an extended-release formulation. Knowledge about flushing helps foster better communication between the patient and healthcare provider, promoting adherence and the overall management of their lipid levels. This is why emphasizing the issue of flushed skin is critical when discussing niacin's side effects.