The NHS warns people taking statins (to lower "bad cholesterol") to call 999 immediately if they experience specific severe symptoms. These include sudden swelling or difficulty breathing, which signal a severe allergic reaction. Less critical but still serious symptoms, like unexplained muscle pain or yellowing skin, require calling 111.

Purpose of Statins: Statins are a widely prescribed group of medicines used to lower the level of LDL cholesterol, often called "bad cholesterol," in the blood. By reducing cholesterol production in the liver, statins significantly reduce a person's risk of severe events like strokes and heart attacks.

Call 999 for Allergic Reactions: The NHS guidance stresses that patients should call 999 or go straight to A&E if they develop a severe allergic reac

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