How to stay healthy in a heat wave — and medicines that put you at risk for heat exhaustion

People taking certain medications or with specific health conditions face increased risk during extreme heat, according to medical guidance. Medications that affect sweat production, reduce fluid intake, or impact the body's temperature regulation—including some diuretics, antihistamines, and antipsychotics—can elevate heat-related illness risk. The National Weather Service and CDC recommend that people on these medications stay in cool environments, drink fluids regularly, and monitor for symptoms of heat exhaustion including dizziness, nausea, and rapid heartbeat.

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