As summer temperatures rise across the UK, millions of people taking common medications are being urged to take extra care. Drugs used to treat high blood pressure, allergies, and mental health conditions can make it harder for the body to stay hydrated and cool down, potentially leading to serious health risks during a heatwave.
Diuretics, often prescribed for heart failure or high blood pressure, increase urination and can cause dehydration or electrolyte imbalances. ACE inhibitors, also for high blood pressure, may suppress thirst and increase the risk of fainting. Beta-blockers can reduce sweating, impairing the body's ability to cool down, while some antipsychotics and antidepressants have similar effects.
Other medications that may pose risks include thyroid drugs, which can raise body temperature, and stimulants for ADHD, which affect the central nervous system. Even over-the-counter medicines like certain sleeping pills and hayfever remedies can increase vulnerability to heat-related illnesses.
To stay safe, experts recommend limiting time outdoors, staying in air-conditioned or shaded areas, drinking plenty of water, and wearing loose, light-coloured clothing. It is important not to stop taking prescribed medications without consulting a doctor.
