The chemical trade-off: how pain relief can slow your body's healing

Science · Published 24 October 2026 Swipe more like this →

In short: NSAIDs are among the most widely used drugs globally, prized for their ability to dampen pain and fever. However, these medications work by suppressing the very chemicals your body uses to signal injury. By silencing these alarms, they provide relief but may also interfere with your natural recovery process.

Nonsteroidal anti-inflammatory drugs (NSAIDs) function by inhibiting cyclo-oxygenase (COX), an enzyme responsible for biosynthesizing prostaglandins and thromboxane. These chemicals are primary drivers of inflammation, pain, and fever. Because of this mechanism, NSAIDs can effectively treat a wide range of conditions, from acute issues like headaches, sprains, and dental pain to chronic conditions such as arthritis and muscle stiffness. These medications are chemically unrelated compounds that share common therapeutic actions. They are used to manage symptoms of the common cold and flu, as well as painful periods.

While they are often compared to corticosteroids due to their anti-inflammatory effects, NSAIDs are distinct because they do not carry the same steroid-related side effects. They are available in various forms, including over-the-counter (OTC) options like ibuprofen and aspirin, and prescription-strength medications such as naproxen, diclofenac, and celecoxib. However, their potency comes with a biological cost: research suggests that because they suppress inflammatory signals, they can actually slow down the body's natural healing process. Prescription-only options include mefenamic acid and toricoxib. Some specific forms are designed for local application, such as gels, sprays, patches, and plasters.

The risks of NSAID use are primarily linked to their impact on the gastrointestinal, renal, and cardiovascular systems. Serious complications can include stomach ulcers, internal bleeding, and kidney problems. To mitigate these risks, healthcare providers generally recommend short-term use—limiting OTC versions to three days for fever and ten days for pain. For those requiring long-term treatment, taking the medication with a full meal is a standard precaution to reduce the risk of stomach ulcers. Allergic reactions, known as anaphylaxis, can occur as a rare but serious side effect. Patients should also avoid these drugs if they are pregnant or breastfeeding.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

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