Multiple UK outlets report that pharmacists are warning people that some commonly used medications can increase health risks during hot weather. Coverage highlights that the body may struggle to cope with high temperatures and humidity, and that certain drug groups can affect the body’s temperature regulation, hydration levels, or cardiovascular response.
Several sources focus specifically on people taking heat-sensitive heart or blood-pressure medicines, including beta blockers (such as bisoprolol, atenolol and propranolol) and diuretics, warning that side effects may be more likely during periods of extreme heat. Other reports broaden the warning to additional medication categories, including metformin and diabetes medicines such as insulin, as well as antidepressants and antipsychotics, and some stimulants.
The articles generally advise affected people to take precautions during a heatwave and seek guidance from healthcare professionals if they have concerns about side effects or whether they should adjust how they manage their medication. The warnings emphasize being alert to symptoms and following medical advice rather than stopping treatment without consultation.
