There is no single best medicine for body pain, but for most people, an over-the-counter anti-inflammatory like ibuprofen or naproxen is the strongest starting point. These drugs reduce both pain and the inflammation that often causes it. Acetaminophen is a reasonable alternative when inflammation isn’t the main issue or when anti-inflammatories aren’t safe for you. The right choice depends on the type of pain, how long it’s lasted, and your individual health risks.
How Pain Relievers Actually Work
Both NSAIDs (ibuprofen, naproxen, aspirin) and acetaminophen work by blocking the production of prostaglandins, chemicals your body makes that amplify pain signals and trigger inflammation. The key difference is potency. At a standard 1,000 mg dose, acetaminophen only inhibits about 50% of the enzymes responsible for prostaglandin production, and that effect lasts roughly four hours. That’s approximately half the effect of a comparable NSAID dose. This is why acetaminophen works fine for headaches and fevers but often falls short for inflamed joints, sore muscles, or injury-related pain.
NSAIDs also reduce swelling at the site of pain, which acetaminophen does not do effectively. If your body pain involves stiffness, redness, or swelling, an NSAID will typically outperform acetaminophen. Acetaminophen’s main advantage is its gentler profile for people with stomach issues, heart disease, or those taking blood thinners.
NSAIDs: Ibuprofen vs. Naproxen
Ibuprofen and naproxen are the two most accessible NSAIDs, and they’re not interchangeable. Ibuprofen works faster but wears off in four to six hours, making it better for short bursts of pain. Naproxen lasts 8 to 12 hours per dose, which makes it more practical for persistent, all-day body aches like those from flu, overexertion, or chronic conditions.
A clinical trial of 320 emergency room patients with severe low back pain found that naproxen alone performed just as well as naproxen combined with a muscle relaxant or a narcotic painkiller. Adding those extra medications provided no measurable improvement in pain or function over 10 days. This is a useful finding: for acute musculoskeletal pain, a single NSAID is often enough.
The cardiovascular risks of NSAIDs vary by type. In large meta-analyses, naproxen showed no significant increase in the risk of major vascular events compared to placebo. Ibuprofen carried a higher risk for major coronary events (more than double), and diclofenac raised the risk of vascular events by about 37%. All three NSAIDs were associated with increased risk of hospitalization for heart failure with long-term use. If you need an NSAID regularly, naproxen appears to be the safer cardiovascular option.
When Acetaminophen Is the Better Choice
Acetaminophen makes sense when your pain is mild, when you can’t tolerate NSAIDs due to stomach ulcers or kidney problems, or when you’re on blood-thinning medication. It’s also the preferred option during pregnancy for short-term use. For tension headaches, mild body aches from a cold, and low-grade muscle soreness, it’s often sufficient.
The ceiling for safety is firm: no more than 4,000 mg in 24 hours, though many manufacturers now recommend staying under 3,000 mg to protect the liver. This is especially important because acetaminophen hides in dozens of combination products, from cold medicines to sleep aids. Taking multiple products containing it is one of the most common causes of accidental overdose and liver damage.
Chronic or Widespread Body Pain
If your pain is widespread, lasting weeks or months, and doesn’t respond well to over-the-counter options, the problem may involve how your nervous system processes pain rather than active tissue damage. Conditions like fibromyalgia fall into this category, and they respond to a different class of medication entirely.
Three prescription medications have moderate to good evidence for fibromyalgia-type pain: duloxetine (which affects serotonin and norepinephrine signaling), milnacipran (a similar type of drug), and pregabalin (which calms overactive nerve signals). For a 30% reduction in pain, roughly 1 in 6 to 1 in 10 patients will benefit beyond what a placebo provides. For a 50% reduction, the numbers are 1 in 7 to 1 in 14. These aren’t dramatic hit rates, but for people with persistent widespread pain that hasn’t responded to standard painkillers, they represent real options.
Modern pain management guidelines emphasize a stepwise approach. Mild pain starts with non-opioid medications and lifestyle measures. If those fail, the next step isn’t jumping to stronger pills but incorporating approaches like physical therapy, targeted exercises, or minimally invasive procedures. Strong opioids are considered a last resort for chronic non-cancer pain, not a first-line treatment.
Topical Options for Localized Pain
When pain is concentrated in one area, like a sore shoulder or aching knee, topical NSAIDs (gels and creams containing diclofenac or ibuprofen) deliver the drug directly to the tissue with far less absorption into the bloodstream. This dramatically reduces the stomach and cardiovascular risks that come with oral NSAIDs. For joint pain close to the skin surface, topical NSAIDs can be as effective as oral doses. They’re less useful for deep muscle pain or pain spread across multiple areas.
Menthol and capsaicin creams work differently. They don’t reduce inflammation but instead override pain signals by activating competing nerve sensations (cooling or warming). These can take the edge off muscle soreness and are safe to use alongside oral pain relievers.
Magnesium for Muscle-Related Pain
If your body pain is primarily muscular, especially after exercise or physical strain, magnesium supplementation may help recovery. In one study, participants taking 500 mg of magnesium daily reported less muscle soreness at 24, 48, and 72 hours after intense exercise compared to those who didn’t supplement. Magnesium plays a direct role in muscle contraction and relaxation, and its anti-inflammatory properties may reduce exercise-induced damage.
There’s an important caveat: supplementation only helps if your magnesium levels are low or borderline. Studies on athletes with normal magnesium levels found no improvement in muscle symptoms or performance from additional supplementation. Since many people do fall short of recommended magnesium intake, especially those who exercise frequently, it’s worth considering. But it’s not a replacement for actual pain medication when you’re in significant discomfort.
Matching the Medicine to the Pain
- Acute injury or inflammation (sprains, strains, joint flare-ups): An oral NSAID like ibuprofen or naproxen is typically most effective. Apply ice in the first 48 hours alongside it.
- Mild, generalized aches (cold, flu, light soreness): Acetaminophen or a low-dose NSAID will handle this. Choose based on your tolerance and health history.
- Post-exercise soreness: Naproxen for immediate relief, magnesium supplementation for recovery support if your intake is low.
- Chronic widespread pain (fibromyalgia, persistent unexplained aching): Over-the-counter options may not be enough. Prescription medications that target nerve signaling, combined with physical activity, tend to produce better results than painkillers alone.
- Localized joint or tendon pain: A topical NSAID gel applied directly to the area, with oral medication as backup for worse days.
For most episodes of body pain, starting with naproxen gives you the longest-lasting relief with a relatively favorable safety profile. If you need something daily for more than a week or two, that’s the point where understanding the underlying cause matters more than choosing the right pill.