There is no single best pain medication for chronic pain. The most effective choice depends almost entirely on what type of pain you have, because different pain conditions respond to completely different classes of drugs. What works well for arthritis may do nothing for nerve pain, and vice versa. The CDC’s 2022 clinical practice guideline is clear on one point: non-opioid medications are preferred for chronic pain, and opioids should not be considered first-line or routine therapy.
That said, there are strong options for each major type of chronic pain. Here’s what the evidence supports.
Arthritis and Joint Pain
For osteoarthritis and other inflammatory joint pain, anti-inflammatory drugs (NSAIDs like ibuprofen and naproxen) are the most effective pharmacological option. They work best for pain that comes with swelling and inflammation. If you have pain in just one or two joints close to the skin’s surface, like a knee, a topical NSAID gel or cream applied directly to the joint is the recommended starting point. It delivers the drug where you need it while limiting exposure to the rest of your body.
If topical treatment isn’t enough, or if you have pain in multiple joints, oral NSAIDs or duloxetine (a type of antidepressant that also reduces pain signals) are the next step. Acetaminophen (Tylenol) is often tried first because it’s widely available and gentle on the stomach, but it’s notably less effective than NSAIDs for knee and hip osteoarthritis pain.
COX-2 inhibitors, a subtype of NSAID, are roughly as effective as standard NSAIDs with a lower risk of stomach damage. They can be a good fit if you’ve had gastrointestinal problems with ibuprofen or naproxen.
Chronic Back Pain
For chronic low back pain that hasn’t responded to exercise and physical therapy, the two leading medication options are NSAIDs and duloxetine. Duloxetine works by increasing levels of two brain chemicals (serotonin and norepinephrine) that play a role in how your body processes pain signals. It’s particularly useful when back pain has a component that feels more like aching or burning rather than sharp, mechanical pain tied to specific movements.
One important thing to know: duloxetine and similar antidepressants used for pain don’t work right away. You may notice some relief within a week or so, but the full pain-relieving effect typically takes several weeks to develop. That delay can be frustrating, but it doesn’t mean the medication isn’t working.
Nerve Pain
Neuropathic pain, the burning, shooting, or tingling pain caused by nerve damage, responds to a different set of medications than inflammatory pain. Standard painkillers like ibuprofen or acetaminophen often do very little for nerve pain. Instead, the first-line treatments are:
- Antidepressants that boost serotonin and norepinephrine: Duloxetine and older tricyclic antidepressants like amitriptyline. These are prescribed at lower doses for pain than for depression. Amitriptyline is typically started at 10 mg at night, then gradually increased over weeks based on how you respond.
- Anticonvulsants: Gabapentin and pregabalin were originally developed for seizures but are now widely used for nerve pain. They work by calming overactive nerve signals. Gabapentin is usually started at a low dose (100 to 300 mg daily) and slowly increased, since jumping to a full dose can cause dizziness and drowsiness.
- Topical options: Lidocaine patches and capsaicin patches or creams can help with localized nerve pain. These are applied directly to the painful area and carry minimal risk of side effects elsewhere in the body.
An important note on topical treatments: a rigorous federally funded study from Johns Hopkins and Walter Reed found that custom-compounded pain creams (the kind mixed by specialty pharmacies with multiple ingredients) performed no better than placebo. The pain reduction in patients using the active cream was nearly identical to the placebo group, with differences of just 0.1 to 0.3 points on a pain scale. Standard FDA-approved topical products like lidocaine patches are a different story and do have evidence behind them for specific uses.
Fibromyalgia
Fibromyalgia is notoriously difficult to treat because it involves widespread pain without a clear source of tissue damage or inflammation. Only three medications are FDA-approved specifically for fibromyalgia: pregabalin (Lyrica), duloxetine (Cymbalta), and milnacipran (Savella). Pregabalin targets nerve and muscle pain, while duloxetine and milnacipran are antidepressants that also address fatigue and cognitive difficulties alongside pain.
In practice, treatment for fibromyalgia often combines one of these medications with low-dose tricyclic antidepressants like amitriptyline, topical NSAIDs, or gabapentin. No single drug eliminates fibromyalgia pain entirely, so expectations matter. The goal is meaningful improvement in pain and daily function rather than complete pain relief.
Why Combining Medications Often Works Better
Chronic pain rarely has a single mechanism. You might have inflammation in a joint plus sensitized nerves in the surrounding tissue, or a back injury that causes both muscular pain and nerve compression. This is why a “multimodal” approach, using medications from different drug classes together, often outperforms relying on one drug alone.
Combining drugs that work through different pathways can produce a synergistic effect, meaning the total relief is greater than what either drug would provide on its own. Research published in the Journal of the American College of Surgeons found that multimodal pain management delivered pain relief equivalent to opioid therapy while significantly reducing or eliminating the need for opioids. For example, pairing a low-dose NSAID with an antidepressant like duloxetine targets both the inflammatory and nerve-signaling components of pain simultaneously.
Long-Term Safety Tradeoffs
Because chronic pain means long-term medication use, safety profiles matter as much as effectiveness.
NSAIDs carry real cardiovascular risks over time. A large meta-analysis found that diclofenac increased the risk of major vascular events by 37%, while ibuprofen raised the risk of major coronary events by 122%. All three common NSAIDs (diclofenac, ibuprofen, and naproxen) increased the risk of hospitalization for heart failure, with risk roughly doubling across the board. Among them, naproxen appears to carry the lowest cardiovascular risk overall, which is why it’s often preferred for long-term use. But no NSAID is risk-free when taken daily for months or years, especially if you have existing heart or kidney concerns.
Acetaminophen is easier on the heart and stomach but can damage the liver. The FDA sets the maximum daily dose at 4,000 mg for adults, though many clinicians recommend staying well below that ceiling, particularly if you drink alcohol or take other medications that are processed by the liver.
Gabapentin and pregabalin commonly cause drowsiness, dizziness, and weight gain. These side effects often lessen over time, especially when the dose is increased gradually. Antidepressants used for pain can cause dry mouth, constipation, and drowsiness, particularly the older tricyclics like amitriptyline, which is why they’re typically taken at bedtime.
Where Opioids Fit In
Opioids are not recommended as a first-line treatment for chronic pain. The CDC guideline is explicit: clinicians should only consider opioids after maximizing non-opioid options, and only when the expected benefits for both pain and daily function are anticipated to outweigh the risks. Those risks include tolerance (needing higher doses over time for the same effect), physical dependence, and the well-documented potential for misuse.
That said, opioids are not categorically off the table. For people with severe chronic pain who haven’t gotten adequate relief from other approaches, low-dose opioid therapy may still play a role. In multimodal treatment plans, even patients with serious injuries can often get by with significantly less opioid medication when it’s combined with other drug classes and non-drug therapies. The key shift in modern pain management is treating opioids as one small piece of a larger strategy rather than the default answer.