As temperatures soar across the UK, health experts are issuing urgent warnings about the hidden dangers of common prescription drugs and supplements. Many widely used medications can significantly increase the risk of dehydration during extreme heat, putting vulnerable individuals at serious risk.
Which Medications Pose the Greatest Risk?
Diuretics, often prescribed for high blood pressure, are among the most concerning. These "water pills" actively remove fluid from the body, potentially leading to dangerous dehydration when combined with excessive sweating.
Other medications of concern include:
- Certain antidepressants
- Antihistamines
- Some cholesterol-lowering drugs
- Various psychiatric medications
Unexpected Supplement Dangers
Even seemingly harmless supplements can cause problems during heatwaves. High doses of vitamin C, for instance, may have a mild diuretic effect, while some herbal supplements like dandelion root are natural diuretics.
Dr. Sarah Jarvis, a GP and medical commentator, explains: "Many people don't realise their regular medications could make them more vulnerable in hot weather. It's crucial to stay hydrated and watch for warning signs like dizziness or reduced urine output."
Protecting Yourself During the Heatwave
Experts recommend:
- Consulting your GP about potential medication risks
- Increasing water intake (unless medically advised otherwise)
- Avoiding alcohol and caffeine which can worsen dehydration
- Staying in cool environments during peak heat hours
The Met Office has issued heat-health alerts for several regions, urging the public to take precautions as temperatures are expected to remain high throughout the week.
