Doctor issues warning to those taking ibuprofen at a specific time of day

While it’s common to take ibuprofen to ease discomfort before an intense workout, a Spanish doctor has issued a stark warning on social media about the serious health risks this habit can pose.

Dr. Rojas, known for sharing medical advice on platforms like TikTok, recently explained in a video (see below) the real dangers of taking this non-steroidal anti-inflammatory drug (NSAID) before exercising – particularly before long or high-intensity activities like running marathons or endurance cycling.

Why can taking ibuprofen before sport dangerous?

The first issue Dr. Rojas points to is the reduction in blood flow to the kidneys caused by ibuprofen. The drug interferes with the synthesis of prostaglandins, compounds that help maintain healthy kidney circulation.

“When you exercise – especially for long periods – it’s normal to lose fluids and become dehydrated. If you add reduced blood flow to your kidneys on top of that, the risk of developing kidney failure rises significantly,” he explains.

This risk is even higher for athletes who don’t hydrate properly before or during physical activity. While the damage might be temporary, in extreme cases it can lead to serious or even irreversible conditions.

Even more concerning is the second adverse effect Dr. Rojas highlights: ibuprofen can affect how platelets work, increasing the chance of blood clots forming.

“A clot in the heart can cause a heart attack, and in the brain, a stroke. It’s a silent but very real risk if you take this drug right before putting your body under major physical stress,” the doctor warns.

These complications aren’t usually associated with young or athletic people, but the misuse of anti-inflammatory medication can change that perception.

What does the medical community recommend?

Dr. Rojas’ warning is in line with guidance from bodies like the Spanish Agency of Medicines and Medical Devices (AEMPS) and the US Food and Drug Administration (FDA), both of which have repeatedly cautioned against the careless use of NSAIDs – especially in physically demanding or dehydrated conditions.

If you’re experiencing muscle or joint pain before working out, the best approach is rest, physical therapy, or natural methods like cold compresses.

Medical experts also recommend speaking to a doctor before self-medicating, staying properly hydrated before, during and after exercise, and listening to your body. Pain is a warning sign that shouldn’t be ignored or masked without understanding the cause.

Dr. Rojas closes his message with a clear piece of advice: “Don’t take ibuprofen before working out unless you’re sure your health is in good shape. The risk just isn’t worth the short-term relief.”

Ibuprofen might seem like a helpful shortcut for athletes, but taking it before exercise can pose a serious threat to kidney and cardiovascular health. Before reaching for a quick fix, the wiser path is to stay informed and put prevention first.

Your health isn’t worth unnecessary risks. Take care of it.

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