As the UK swelters under a scorching 35C heatwave, experts are warning that common storage mistakes could render medicines ineffective. The Met Office predicts the record-breaking sunshine will persist for several days, prompting an urgent safety message from the Medicines and Healthcare products Regulatory Agency (MHRA).
Where Not to Store Your Medicines
Alison Cave, Chief Safety Officer at the MHRA, advises against leaving medication in three places: cars, bags, or sunny windowsills. "Let's face it – when there's a heatwave, most of us are focused on getting outside and enjoying it while it lasts," she said. "But it's easy to forget that medicines left in the heat – in cars, bags, or on sunny windowsills – might not work properly when you need them." She warned that improper storage could lead to more severe health consequences.
Additional Risks During Hot Weather
Certain medications can increase sensitivity to the sun, cause dizziness, or lead to dehydration, especially for those taking diuretics or managing conditions like asthma, heart disease, or diabetes. The MHRA urges patients to read medication leaflets and consult healthcare professionals with any concerns.
How to Stay Safe
- Store medicines in a cool, dry place away from direct sunlight, especially when outdoors.
- Recognise signs of heat-related illness: stay hydrated and listen to your body.
- Take extra sun precautions if your medication increases sunburn risk.
Pharmacist's Warning on Affected Medicines
Raj Rohilla, a pharmacist with over 35 years of experience, identified five groups of medicines particularly affected by heat: antidepressants, heart medications, diabetes drugs, and others. Warning signs to watch for include dizziness, confusion, fainting, excessive sweating or lack thereof, rapid heartbeat, weakness, severe thirst, shakiness, and low blood sugar symptoms.
UKHSA Guidance
The UK Health Security Agency (UKHSA) advises acting quickly if signs of dehydration or heatstroke appear: dizziness, headaches, tiredness, confusion, and dark urine. These are especially dangerous for older adults, young children, and those with heart or kidney conditions. If feeling unwell in the heat, move to a cooler place, sip water slowly, and seek medical advice if symptoms persist.
Should you experience unusual symptoms while taking medication, seek professional advice immediately. Visit your local pharmacy, but check opening times as some may operate reduced hours during the bank holiday.
