Nexlizet Drug Interactions: What to Avoid and What to Tell Your Doctor

Nexlizet is generally well-tolerated, but like all medications, it can interact with other drugs. Because Nexlizet contains two active ingredients — bempedoic acid and ezetimibe — its interaction profile reflects both. Before starting Nexlizet, review this list of known interactions with your doctor and pharmacist, and make sure they have an up-to-date medication list.

Interaction 1: Simvastatin and Pravastatin — Dose Limits Apply

Severity: Major — Dose adjustment required

Bempedoic acid inhibits a renal transporter called OAT2, which normally helps clear simvastatin and pravastatin from the body. When Nexlizet is taken alongside these statins, blood levels of simvastatin or pravastatin can rise — increasing the risk of myopathy (muscle damage).

The FDA recommends:

Avoid simvastatin doses above 20 mg/day when taking Nexlizet

Avoid pravastatin doses above 40 mg/day when taking Nexlizet

Note: Atorvastatin and rosuvastatin do not have dose restrictions when co-administered with Nexlizet. These statins show only a modest (1.7-fold) AUC elevation that stays within acceptable exposure ranges and doesn't require dose capping. If you're currently on simvastatin 40 mg or higher, your doctor may want to switch you to a different statin before starting Nexlizet.

Interaction 2: Cyclosporine — Monitor Drug Levels

Severity: Moderate — Use with caution; monitor levels

When Nexlizet's ezetimibe component is taken with cyclosporine (an immunosuppressant used in transplant patients), both cyclosporine and ezetimibe blood levels can increase. This is particularly significant in patients with renal insufficiency, where the effect may be greater.

If you're a transplant patient taking cyclosporine, your doctor will closely monitor your cyclosporine levels and may adjust your dose if you're prescribed Nexlizet. Do not start or stop Nexlizet without discussing it with your transplant physician.

Interaction 3: Fibrates — Gallstone Risk and Triglyceride Effects

Severity: Moderate — Use fenofibrate with caution; avoid gemfibrozil

Fibrates (such as gemfibrozil and fenofibrate) are used to lower triglycerides. When taken with the ezetimibe component of Nexlizet, fibrates may increase cholesterol excretion into the bile — raising the risk of gallstones (cholelithiasis).

Gemfibrozil + Nexlizet: Coadministration is not recommended due to gallstone risk and potential muscle issues

Fenofibrate + Nexlizet: Use cautiously; monitor for gallbladder symptoms (right-sided abdominal pain, nausea, fever). Gallbladder studies are indicated if gallstones are suspected.

Interaction 4: Bile Acid Sequestrants — Take Nexlizet at the Right Time

Severity: Moderate — Timing matters

Bile acid sequestrants (such as cholestyramine, colestipol, and colesevelam) are resins that bind to bile acids in the gut. They can also bind to ezetimibe, reducing its absorption by up to 55%.

To avoid this interaction:

Take Nexlizet at least 2 hours BEFORE or at least 4 hours AFTER your bile acid sequestrant

This spacing ensures ezetimibe is absorbed before the sequestrant binds it

Interaction 5: Grapefruit Juice — Indirect Risk with Certain Co-Prescribed Statins

Nexlizet itself does not interact directly with grapefruit juice. However, if you're taking Nexlizet along with a statin like atorvastatin or simvastatin, grapefruit juice can significantly raise your statin blood levels by blocking CYP3A4 enzyme metabolism. Since Nexlizet already modestly increases simvastatin exposure, adding grapefruit juice further elevates the risk of muscle-related statin side effects. Avoid grapefruit and grapefruit juice while on statins that interact with CYP3A4.

What to Tell Your Doctor Before Starting Nexlizet

Before starting Nexlizet, give your prescriber and pharmacist a complete list of all medications, including:

All prescription drugs (especially statins, immunosuppressants, fibrates)

Over-the-counter medications (antacids, acid reducers)

Vitamins and supplements

Herbal products (fish oil, red yeast rice, bergamot — these may have their own cholesterol or uric acid effects)

For a comprehensive overview of side effects associated with Nexlizet itself (not from interactions), see our guide on Nexlizet side effects: what to expect and when to call your doctor.

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