Brits have been alerted to a crucial health warning as forecasts suggest the UK could be set for blistering temperatures this week, surpassing those of Ibiza. The nation is gearing up for sweltering conditions, with the Met Office indicating it is to expect "strong August sunshine" across England and Wales in the coming days, raising the possibility of sporadic thunderstorms.

Meanwhile, Ventusky's weather maps are showing potential highs of 33C in Huntingdonshire, while Ibiza is expected to reach about 31C. Projections indicate that the peak temperatures in the UK could occur around 4pm on Tuesday. With the prospect of the fourth heatwave this summer, it's critical to remember that certain prescription medications can intensify heat-related issues.

Experts have issued a warning that millions of Brits could face an increased health risk due to widely prescribed medications. Among these are diabetes treatments such as insulin and metformin.

The Government has cautioned that diabetes medications can heighten the danger of dehydration or obscure the early signs of it. Dehydration poses a significant threat in hot conditions, potentially leading to a further rise in body temperature.

The Medicines and Healthcare Products Regulatory Agency has issued a stark warning about the risks of dehydration. It highlights that it can lead to dizziness, headaches, tiredness, confusion, and dark urine. This is especially perilous for older adults, young children, and those with heart or kidney conditions.

For those feeling unwell due to the heat, the agency advises: "If you start to feel unwell in the heat, move somewhere cooler, sip water slowly, and seek medical advice if you don't feel better quickly."

Moreover, individuals on antidepressants should exercise extra caution during periods of high temperatures. SSRIs, a prevalent type of antidepressant, are known to cause increased sweating as they boost serotonin levels in the brain, which can enhance sleep and mood.

Yet, as experts have pointed out, this side effect poses a risk in hot weather. SSRIs affect the hypothalamus, the brain's temperature regulator, by altering chemical balances, making it difficult for the body to maintain a stable internal temperature.

Pharmacist Thorrun Govind told The Sun, "This can lead to excessive sweating," adding that "This can be counterproductive in hot weather as the body is already struggling to cool down."

Excessive sweating can result in dehydration and further elevate body temperature.

This doesn't imply that you should cease taking antidepressants if they've been prescribed to you, as abruptly discontinuing these medications can be extremely hazardous.

Instead, you should adhere to your GP's instructions regarding your prescription and maintain your usual routine, but take additional precautions in hot weather.

These precautions should include refraining from going outdoors or exercising during the peak heat hours of the day - between 11am and 3pm - and seeking shade whenever possible.

You should also avoid alcohol, as it is dehydrating, and ensure you're drinking plenty of water. Additionally, opt for loose, breathable fabrics like cotton and linen during a heatwave.