As the UK experiences a scorching heatwave with temperatures potentially soaring to 40°C, a critical health alert has been issued by the Met Office and the UK Health Security Agency. On BBC Morning Live, Dr Ranj Singh delivered an urgent warning for people taking certain medications to be extra cautious during this extreme weather.
Dr Ranj highlighted that high temperatures can significantly impact the effectiveness and safety of various medicines, as the body’s response changes in the heat. He urged patients to be mindful of how and where they store their medications and to monitor themselves closely for signs of heat-related complications.
Those particularly at risk include individuals on diuretics (water tablets), blood pressure medications such as ramipril and losartan, ADHD treatments, diabetes medications, antibiotics like doxycycline, hormone patches, and EpiPens. “People on diuretics and blood pressure tablets are more prone to dehydration, so maintaining adequate water intake is essential,” Dr Ranj explained.
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He also noted that medications affecting body temperature regulation, such as certain antipsychotics and ADHD drugs, require extra vigilance. Additionally, some antibiotics can increase skin sensitivity to sunlight, raising the risk of burns and skin reactions.
For diabetic patients using insulin, Dr Ranj warned that heat can accelerate insulin absorption due to increased blood flow near the skin, which may increase the risk of hypoglycemia. Proper storage of temperature-sensitive medicines such as insulin, EpiPens, and hormone patches is crucial, ideally in cool, dry places or refrigerated when necessary.
Dr Ranj stressed the importance of recognizing symptoms of heat exhaustion and heat stroke and advised seeking medical help promptly if feeling unwell. He explained how the body’s natural cooling process—redirecting blood to the skin to dissipate heat through sweating—can reduce blood flow to vital organs, causing symptoms like dizziness and reduced appetite.
Finally, he addressed common but less serious heat-related issues like prickly heat, an irritation caused by trapped sweat that produces a bumpy rash. Cooling the skin and using creams can provide relief.
In this unprecedented heat, Dr Ranj Singh’s advice underscores the need for extra care among those on medication to avoid potentially serious health complications.