Bempedoic Acid Gout Risk Calculator
Bempedoic acid (Nexletol) can increase your uric acid levels, potentially leading to gout. This tool assesses your personal risk of developing gout while taking this medication. Remember, 1.5% of users develop gout, with higher risk for those with pre-existing conditions.
When you're trying to lower your cholesterol but can't take statins because of muscle pain or other side effects, bempedoic acid (sold as Nexletol) might be your next option. It works differently than statins - it blocks cholesterol production in the liver without touching your muscles the same way. But that doesn’t mean it’s risk-free. In fact, two serious side effects - gout and tendon injuries - have become major red flags for doctors and patients alike. If you're considering this drug, or already taking it, here’s what you need to know before you take another pill.
How Bempedoic Acid Works (And Why It’s Different from Statins)
Bempedoic acid is an ATP-citrate lyase inhibitor. That’s a fancy way of saying it stops your liver from making too much cholesterol. Unlike statins, which block an enzyme called HMG-CoA reductase, bempedoic acid acts earlier in the cholesterol-making process. This is why it’s often prescribed to people who can’t tolerate statins. In clinical trials, only about 5.8% of people on bempedoic acid reported muscle spasms, compared to 10-15% on statins. That’s a big win for those who’ve had to quit statins because of muscle pain, weakness, or cramps.
But here’s the catch: even though it’s gentler on your muscles, it throws off other systems in your body. The most surprising side effects aren’t muscle-related at all. They’re gout and tendon damage - problems most people wouldn’t expect from a cholesterol drug.
The Gout Connection: Why Your Uric Acid Spikes
One in every 67 people taking bempedoic acid ends up with a gout attack. That’s 1.5% of users, compared to just 0.5% on placebo. For those who already had gout before starting the drug, the risk jumps to 2.3%. That’s more than double.
Why does this happen? Bempedoic acid increases uric acid levels in your blood. Uric acid is a waste product your body normally flushes out. But when levels get too high, it forms sharp crystals in your joints - especially the big toe. That’s what causes the sudden, burning pain of gout. Symptoms can show up as early as the first four weeks of treatment.
Doctors now recommend checking your uric acid levels before you start bempedoic acid and again at four weeks. If levels are high, they may prescribe allopurinol - a cheap, well-known gout medication. Studies show this cuts gout risk by 65% in people taking bempedoic acid. If you’re already on allopurinol for gout, your doctor might increase your dose. Don’t wait until you’re in agony to act.
Tendon Rupture: The Silent, Serious Risk
Here’s the scariest part: bempedoic acid can cause your tendons to tear. Not just strain - rupture. Clinical trials showed 0.7% of users had tendon-related injuries, compared to 0.1% on placebo. That’s a sevenfold increase. And if you’re taking it with a statin? The risk jumps to 3.5 times higher than if you were on placebo alone.
Tendon ruptures often happen without warning. People report hearing a “snap” or “pop,” followed by sudden pain and swelling. The Achilles tendon is the most common site, but shoulder, hand, and foot tendons can also be affected. You might not be able to walk, lift your arm, or even point your toes.
The FDA and the European Atherosclerosis Society both warn against using bempedoic acid if you’re already taking fluoroquinolone antibiotics like ciprofloxacin or levofloxacin. These drugs also raise tendon rupture risk. Together, they’re a dangerous combo. Even if you’ve never had tendon problems before, don’t assume you’re safe. Tendon injuries can strike anyone.
Other Side Effects You Shouldn’t Ignore
Bempedoic acid isn’t just about gout and tendons. Other common side effects include:
- Back pain (4.9% of users)
- Upper respiratory infections (7.7%) - think colds, bronchitis
- Abdominal pain and diarrhea
- Elevated liver enzymes (2.2%) - your liver has to work harder
- Anemia (1.8%) - mild drop in hemoglobin, usually under 1 g/dL
- Swelling or pain in hands or feet (3.4%)
Most of these are mild and fade after a few weeks. Only 1.2% of people stop taking bempedoic acid because of muscle spasms or other side effects. But liver enzyme spikes can be serious. If your ALT or AST levels go over three times the normal limit, your doctor will likely pause the drug. Regular blood tests are non-negotiable.
Who Should Avoid Bempedoic Acid Altogether?
This isn’t a drug for everyone. You should not take bempedoic acid if:
- You have a history of gout or high uric acid levels (unless you’re on preventive treatment)
- You’re taking fluoroquinolone antibiotics
- You’ve had a previous tendon rupture or chronic tendon disorder
- Your liver enzymes are already elevated
Also, if you’re already on a statin, adding bempedoic acid might not be worth the added risk. The CLEAR Outcomes trial showed it reduces heart attacks and strokes by 13% - but only in people who couldn’t take statins at all. If you can take statins, even at low doses, that’s usually the safer route.
What to Do If You’re Already Taking It
If you’re on bempedoic acid right now, here’s your action plan:
- Check your uric acid levels. If you haven’t had them tested in the last 3 months, ask your doctor.
- Watch for gout symptoms. Sudden, intense pain in your big toe, ankle, or knee? Don’t brush it off.
- Listen to your body. Any new pain, popping, or swelling in a tendon? Stop the drug and get it checked. Don’t wait.
- Review your other meds. Are you on cipro, levaquin, or another fluoroquinolone? Tell your doctor - you might need to switch.
- Get liver tests. Every 3 months, at least. Your liver is working harder than you think.
Most people tolerate bempedoic acid well. But the risks are real, and they’re not always obvious until it’s too late. The drug is a lifeline for some - but only if you’re watching for the warning signs.
The Bigger Picture: Is It Worth It?
Bempedoic acid reduces heart attacks and strokes by 13% in high-risk patients who can’t take statins. That’s a meaningful benefit. But it’s not a magic bullet. It trades one set of risks (muscle pain) for another (gout, tendon tears). For many, the trade-off is worth it. For others, it’s not.
The American Heart Association says it clearly: reserve bempedoic acid for people who truly can’t take statins. If you’re one of them, work with your doctor to manage the risks. Monitor your blood. Watch your body. Don’t assume it’s safe just because it’s not a statin. It’s a different kind of risk - and you need to know how to spot it.
Can bempedoic acid cause gout even if I’ve never had it before?
Yes. Even if you’ve never had gout, bempedoic acid raises uric acid levels in your blood, which can trigger your first gout attack. About 1.5% of users experience gout for the first time while taking the drug. The risk is highest in the first 4 weeks. If you develop sudden joint pain - especially in the big toe - get checked right away.
Is tendon damage from bempedoic acid reversible?
It depends. Mild tendon pain or inflammation can improve if you stop the drug early and rest. But if a tendon ruptures completely, surgery is often needed. Recovery can take months, and full strength may never return. That’s why doctors stress immediate action: if you hear a snap, feel sudden weakness, or can’t move a joint normally, stop taking bempedoic acid and go to the ER.
Can I take bempedoic acid with a statin?
It’s possible, but risky. The combination increases tendon rupture risk by 3.5 times compared to placebo. The FDA-approved product Nexlizet combines bempedoic acid with ezetimibe - not a statin. If you’re already on a statin and your doctor suggests adding bempedoic acid, ask if the benefit outweighs the added danger. For most people, staying on a low-dose statin is safer than mixing the two.
How often should I get blood tests while on bempedoic acid?
You need a baseline test before starting. Then, check uric acid and liver enzymes at 4 weeks. After that, monitor every 3 months if your levels are normal. If uric acid or liver enzymes are high, you’ll need testing every 1-2 months until they stabilize. Skipping these tests is dangerous - many side effects show up in blood work before you feel any symptoms.
Are there natural ways to lower gout risk while on bempedoic acid?
Yes, but they’re not enough on their own. Drink plenty of water, avoid alcohol (especially beer), and limit red meat and sugary drinks. These help lower uric acid. But if your levels are already high, you’ll still need medication like allopurinol. Natural methods can support treatment, but they won’t prevent gout if the drug is pushing your uric acid into dangerous territory.
Bempedoic acid isn’t the villain - it’s a tool. But like any tool, it can hurt you if you don’t use it carefully. Know the risks. Monitor your body. Talk to your doctor. And never ignore a sudden pain in your tendon or joint. That snap you hear could be the start of something serious.
Written by Mallory Blackburn
View all posts by: Mallory Blackburn