Home Health & Wellness UK Heatwave Warning as Common Medications Increase Risk of Overheating and Dehydration

UK Heatwave Warning as Common Medications Increase Risk of Overheating and Dehydration

Published: Last updated:
Reading Time: 2 minutes

As summer temperatures soar, it’s important to be aware of the increased risks that come with heat waves, especially if you’re taking certain medications. In the UK, where heat waves are becoming more frequent and intense, understanding the interaction between your medication and extreme heat can be crucial for your health.

Why are heat waves a concern?

Heat waves pose several health risks, including heat exhaustion and heat stroke. These conditions can be exacerbated by medications that affect your body’s ability to regulate temperature or manage fluid and electrolyte balance. Sarah Jefferies from Mental Health First Aid Course tells us some common medications that can increase your risk during a heat wave.


Diuretics, often prescribed for high blood pressure or heart conditions, work by removing excess fluid from your body. While this helps in controlling blood pressure, it also increases the risk of dehydration, especially during a heat wave. Common diuretics include furosemide (Lasix) and hydrochlorothiazide.

Tip: Stay hydrated by drinking plenty of water, and consult your GP about adjusting your medication if you’re experiencing prolonged hot weather.


Medications for high blood pressure, such as beta-blockers (e.g., atenolol, metoprolol) and ACE inhibitors (e.g., lisinopril, enalapril), can affect how your body responds to heat. These medications can make it harder for your body to cool down, increasing the risk of heat-related illnesses.

Tip: Monitor your blood pressure regularly and avoid strenuous activities during peak heat hours.


Certain antidepressants, particularly tricyclic antidepressants (e.g., amitriptyline, nortriptyline), and SSRIs (e.g., sertraline, fluoxetine), can interfere with the body’s thermoregulation. They may reduce your ability to sweat, which is essential for cooling down in hot weather.

Tip: Wear lightweight, breathable clothing and seek shade or air-conditioned environments when possible.


Antipsychotic medications, including drugs like chlorpromazine and haloperidol, can impair your body’s ability to regulate temperature. This can be particularly dangerous during a heat wave, leading to a higher risk of heat stroke.

Tip: Regularly check your body temperature and stay in cool environments. Discuss with your healthcare provider about any concerns regarding your medication during hot weather.


Medications used to treat ADHD, such as amphetamines (e.g., Adderall) and methylphenidate (e.g., Ritalin), can increase your body’s core temperature. This, combined with high external temperatures, can put you at risk of overheating.

Tip: Limit physical activity during the hottest parts of the day and ensure you stay well-hydrated.

General tips for managing medication during heat waves

Stay hydrated: Drink plenty of water throughout the day, even if you don’t feel thirsty.

Avoid alcohol and caffeine: These can increase dehydration.

Wear appropriate clothing: Light, loose-fitting clothes can help your body stay cool.

Seek cool environments: Spend time in air-conditioned spaces if possible.

Monitor for symptoms: Be aware of signs of heat exhaustion and heat stroke, such as dizziness, confusion, rapid heartbeat, and nausea.

Consult your GP: If you have concerns about your medication and the heat, don’t hesitate to seek medical advice.

Sarah Jefferies from the Mental Health First Aid Course says: “Heat waves are a growing concern, but with the right precautions, you can manage your health effectively. Understanding how your medication interacts with high temperatures is key to staying safe during the hottest days of the year.”

© Copyright 2014–2034 Psychreg Ltd