Last reviewed: July 2026

What You Need to Know

Four drugs are FDA-approved for fibromyalgia: pregabalin (2007), duloxetine (2008), milnacipran (2009), and — new — sublingual cyclobenzaprine (Tonmya, approved August 2025), the first new approval in over 15 years.
Medication is the supporting act, not the lead. Exercise is the only treatment that carries a strong evidence-based recommendation in fibromyalgia. Every drug below is a weak recommendation by comparison, and reserved for people who haven’t responded to non-drug treatment.
Opioids, NSAIDs, and SSRIs are discouraged for fibromyalgia pain across all the major guidelines. If you’re on them for fibromyalgia, that’s worth a conversation.
Benefits are modest and individual. A drug that transforms one person’s life does nothing for the next. Expect to try more than one.
Start low, go slow. People with fibromyalgia are notably sensitive to side effects.

First, the Honest Framing

When EULAR reviewed over 100 systematic reviews and meta-analyses of fibromyalgia treatments, the only therapy given a “strong for” recommendation was exercise. Every medication received a weak recommendation, and the guidance is that initial management should focus on education and non-drug treatment, with drugs added for those who don’t respond.

That doesn’t mean don’t take medication. For many people it genuinely helps, and for some it’s the thing that makes the exercise and sleep work possible in the first place. But if your entire fibromyalgia plan is a prescription, you’re missing the part with the best evidence behind it. See fibromyalgia treatment for how the pieces fit together.

The Four FDA-Approved Drugs

Drug	Class	Approved	Best for
Pregabalin (Lyrica)	Gabapentinoid / anticonvulsant	2007 — the first	Pain and sleep
Duloxetine (Cymbalta)	SNRI	2008	Pain, and especially pain with depression
Milnacipran (Savella)	SNRI	2009	Pain and fatigue
Cyclobenzaprine, sublingual (Tonmya)	Tricyclic-related	2025 — new	Sleep quality and pain

Pregabalin (Lyrica)

Works on calcium channels in the central nervous system to turn down pain signalling. Usually started at a low dose twice daily and titrated up. Often helps sleep as well as pain.

Side effects: dizziness, drowsiness, blurred vision, weight gain, difficulty concentrating, swelling of hands and feet, dry mouth.

Things the old version of this page didn’t tell you:

It’s a controlled substance (Schedule V in the US). It has misuse potential and should be tapered rather than stopped abruptly.
Do not combine with opioids without careful supervision — the FDA has warned about serious breathing problems with gabapentinoids in people also taking opioids, and in older adults or those with lung disease.
Kidney function affects dosing, and needs monitoring.

Duloxetine (Cymbalta)

An SNRI. It’s considered a first-line option by the American Academy of Family Physicians, while EULAR recommends it particularly where there’s severe pain alongside depression.

Side effects: nausea (usually settles), dry mouth, constipation, insomnia or drowsiness, sweating.

Important: don’t stop it suddenly — discontinuation symptoms are real and unpleasant. Taper with your doctor.

Milnacipran (Savella)

Also an SNRI, with more noradrenergic action than duloxetine — which is why it’s sometimes better for fatigue. It tends to be less well tolerated than duloxetine, so it’s often the second SNRI tried rather than the first.

Side effects: nausea, headache, raised blood pressure and heart rate, constipation.

Tonmya (sublingual cyclobenzaprine) — the new one

Approved by the FDA in August 2025 and available in US pharmacies from late 2025. It’s the first new fibromyalgia drug in over 15 years.

What it is: cyclobenzaprine — the same active ingredient as the old muscle relaxant Flexeril — but delivered under the tongue at a much lower dose (2.8–5.6 mg, versus 5–10 mg oral), taken once nightly at bedtime. The sublingual route bypasses first-pass liver metabolism, which reduces the long-lived metabolite responsible for next-day grogginess. It’s aimed primarily at sleep quality, on the logic that unrefreshing sleep drives the rest of the syndrome.

Approval was based on three placebo-controlled trials involving 1,474 patients who met the 2016 ACR criteria.

The honest caveat: some pain specialists argue that low-dose oral cyclobenzaprine at bedtime achieves much the same result at a fraction of the cost. That’s a legitimate question to raise with your doctor — especially if Tonmya isn’t covered by your insurance. Ask about the generic option first. See how to save on prescription drugs.

Widely Used Off-Label

Amitriptyline (low dose, at night) — the most commonly prescribed off-label drug for fibromyalgia, and recommended as a first-line pharmacological option in several national guidelines. It’s a tricyclic antidepressant used at doses far below antidepressant range, and it helps pain, sleep, and fatigue. Side effects — dry mouth, morning grogginess, constipation — are the limiting factor.

Cyclobenzaprine (standard oral, low dose at bedtime) — the most-studied muscle relaxant in fibromyalgia. See the Tonmya note above.

Gabapentin — a cousin of pregabalin, used off-label. Recommended in the Canadian and Israeli guidelines. Same cautions as pregabalin.

Nortriptyline, doxepin — other tricyclics, sometimes used where amitriptyline isn’t tolerated.

⚠️ What to Avoid — and Why

This is the part that’s changed most since this page was first written.

Opioids — including tramadol

All three major guideline bodies discourage opioids in fibromyalgia.

The evidence for tramadol specifically rests largely on one small crossover trial of 12 patients. Against that sits a real risk profile: dependence, misuse, overdose, and death. Opioids also don’t work well here — fibromyalgia pain arises from altered central pain processing, not tissue damage, and opioids can actually worsen central sensitization over time (opioid-induced hyperalgesia).

A specific danger this page previously created: tramadol is both an opioid and a serotonin-norepinephrine reuptake inhibitor. Combining it with duloxetine or milnacipran — both SNRIs — raises the risk of serotonin syndrome, which is a medical emergency. The old version of this article recommended both, on the same page, with no warning. If you are on both, ask your pharmacist to review it.

If you’re currently on opioids for fibromyalgia, don’t stop abruptly — that has its own risks. Talk to your prescriber about a plan. See heroin & opioid withdrawal and prescription drug addiction if dependence is already part of the picture; there’s no shame in it and it’s treatable.

NSAIDs and acetaminophen

Ibuprofen, naproxen, aspirin, Tylenol. They don’t work for fibromyalgia pain. Fibromyalgia isn’t an inflammatory condition, so anti-inflammatories have nothing to act on. The Arthritis Foundation lists NSAIDs, opioids and corticosteroids together as not effective for fibromyalgia pain.

They may help if you have a separate, genuinely inflammatory problem alongside it — which is common. But they are not fibromyalgia treatment, and long-term NSAID use carries real gastrointestinal and kidney risks. See safety check: over-the-counter medications.

SSRIs (Prozac, Zoloft, Paxil)

SSRIs are discouraged for fibromyalgia pain across the guidelines. This page used to recommend them; that was wrong.

The distinction matters: if you also have depression, an SSRI may be entirely appropriate — for the depression. It is not treating your fibromyalgia. SNRIs (duloxetine, milnacipran) act on both serotonin and norepinephrine, and it’s the norepinephrine action that appears to matter for pain. That’s why they work here and SSRIs largely don’t.

Sleeping pills (zolpidem/Ambien and similar)

Tempting, and understandable — but a trap.

They lose effect over weeks as tolerance develops.
They carry dependence risk, next-day impairment, falls, and complex sleep behaviors.
They don’t fix the underlying problem. Fibromyalgia sleep is unrefreshing sleep, and a sedative doesn’t make sleep restorative.

CBT-I (cognitive behavioral therapy for insomnia) is the gold standard for sleep in chronic pain, and it outperforms sleep hygiene advice — let alone hypnotics — with no dependence risk. Ask for it by name. More in fibromyalgia fatigue.

Benzodiazepines

Not recommended. Dependence risk, and they don’t address the mechanism. If you’re already on them, do not stop abruptly — benzodiazepine withdrawal can be dangerous. See Xanax withdrawal.

How to Actually Use These Drugs

Start low, go slow. People with fibromyalgia report side effects more often and more intensely than average. Starting at a standard dose is the most common reason someone abandons a drug that might have worked at a lower one.

Give it a fair trial. Most of these need several weeks at an adequate dose. Two days is not a trial.

Expect modest. Clinically meaningful relief in a minority of patients is roughly what the evidence supports. A 30% improvement in pain is a good outcome, not a failure. If someone promises you more than that, be suspicious.

Watch for sedation stacking. Several of these are sedating. Combining them can leave you more exhausted than the fibromyalgia was — which is a particularly cruel outcome given fatigue is often the main complaint.

One change at a time. Otherwise you’ll never know what worked.

Take the full list to a pharmacist. Everything, including supplements. The interactions here are real, and a pharmacist will catch things a rushed appointment won’t. See making the most of your medications.

What About Supplements and Cannabis?

The evidence is thin and mixed. Vitamin D, magnesium, and iron may help if you’re deficient — which is worth testing for, since deficiency causes fatigue in its own right. Beyond correcting a deficiency, there’s no supplement with strong evidence in fibromyalgia.

High-dose cannabinoids are best approached with caution; the evidence is weak and the interactions are real.

Be wary of anything marketed as a fibromyalgia cure or a proprietary protocol. People in chronic pain are a heavily targeted market. See natural approaches to fibromyalgia and fibromyalgia diet for what’s reasonable.

The Bottom Line

Four approved drugs, several useful off-label options, and a clear list of things to avoid. None of them are cures, all of them are modest, and the one intervention with the strongest evidence behind it isn’t a drug at all.

Take the medication if it helps. Just don’t let it be the whole plan.

Global Statistics

Fibromyalgia Medication: What’s Approved, What Works, and What to Avoid