Heat wave: 5 types of medicine to use with caution when it is hot

The Federal Union of Consumers and Consumers, UFC-Que Choisir, is sounding the alarm: certain drugs contribute to dehydration, which can be dangerous during periods of high heat. The association has drawn up a non-exhaustive list of the most affected products. In this helpful article, we’ll show you five types of drugs that you can use with caution.

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Which drugs promote dehydration?

Caution, use medication with caution doesn’t mean stop. Indeed, it is important to specify that if you are taking a treatment it can be dangerous to stop it overnight without medical advice. Talk to your doctor before making this decision.


Like coffee and tea, diuretics should be avoided at high temperatures. And it is not for nothing that they promote urination and therefore, cause water loss in your organism. If you don’t drink enough, you risk becoming dehydrated.

Laxatives and Antibiotics

Laxatives and certain antibiotics (such as lactulose, amoxicillin, azithromycin) are also known to give diarrhea. This is their main side effect. Whoever says diarrhea means loss of fluid in your body.

Steroidless Anti-Inflammatories

Do you take non-steroidal anti-inflammatory drugs (such as ibuprofen, aspirin, etc.) and ACE inhibitors (prescribed specifically for high blood pressure)? Keep in mind that these drugs can actually promote the loss of water and mineral salts affect kidney function.

Thyroid Hormones

Certain thyroid hormones (such as levothyrox or cynomel), neuroleptics, and antidepressants can promote hyperthermia, ie increase body temperature. This side effect is especially worrisome during a heat wave, as our bodies already struggle to regulate their temperature.

Drugs for dementia and myasthenia gravis

Do you suffer from dementia or myasthenia gravis (an autoimmune disease that disrupts communication between nerves and muscles)? Be careful, because in strong heat some treatments may sweat morethis is especially the case for mytelase or even ebixa.

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