lipid.site

Ezetimibe (Zetia): Uses, Side Effects and Cost

Ezetimibe (Zetia) is a once-daily 10 mg pill that blocks cholesterol absorption in the gut. On its own it lowered LDL by about 18% in label trials, and added to a statin it lowered LDL about 21 percentage points more than placebo does.

What is ezetimibe and how does it work?

Ezetimibe is a prescription pill that lowers LDL cholesterol (LDL-C) by blocking a cholesterol transporter called NPC1L1 in the lining of the small intestine. Less cholesterol from food and bile gets absorbed, so the liver pulls more LDL out of the blood. Zetia is the original brand name, and generic ezetimibe has the same active ingredient.

Statins work at a different point by slowing the liver's own cholesterol production, so the two combine well. The FDA label approves ezetimibe alongside a statin, or on its own when other LDL-lowering treatment isn't possible, for adults with high cholesterol.

It suits two main groups: people on a statin whose LDL is still above target, and people who can't take a statin or can take only a low dose. Ask your clinician which fits you.

How much does ezetimibe lower LDL?

The label says the full or near-full effect usually arrives within 2 weeks. Numbers from the label trials:

  • Alone: in two 12-week trials of 1,719 people, LDL fell 18% on ezetimibe and rose 1% on placebo.
  • Added to a statin someone already took: LDL fell 25% with ezetimibe added, compared with 4% when placebo was added.
  • For context, the 2026 ACC/AHA guideline puts ezetimibe at about 15 to 20% LDL lowering, compared with about 60% for a PCSK9 inhibitor.

Does ezetimibe lower heart attack risk?

In the IMPROVE-IT trial, adding ezetimibe to simvastatin after a heart attack or unstable angina lowered the 7-year rate of cardiovascular events from 34.7% to 32.7%. The trial enrolled 18,144 people hospitalized for an acute coronary syndrome and followed them for a median of 6 years.

Average LDL-C was 53.7 mg/dL on simvastatin plus ezetimibe and 69.5 mg/dL on simvastatin alone. Muscle, gallbladder, liver and cancer side effects were similar in both groups. The outcomes evidence comes from use with a statin.

What are the side effects of ezetimibe?

In the label's 10 placebo-controlled trials (2,396 people on ezetimibe), side effects ran only slightly above placebo. Most gaps were a percentage point or less. Rates on ezetimibe vs placebo:

  • Upper respiratory infection: 4.3% vs 2.5%
  • Diarrhea: 4.1% vs 3.7%
  • Joint pain: 3.0% vs 2.2%
  • Sinusitis: 2.8% vs 2.2%
  • Fatigue: 2.4% vs 1.5%
  • Liver enzymes: with a statin, rises to 3 times the upper limit of normal in 1.3%, compared with 0.4% on a statin alone. Your clinician may check liver tests when indicated.
  • Muscle problems: the label warns of myopathy and, rarely, rhabdomyolysis, mostly in people also taking a statin or a fibrate. Call about unexplained muscle pain, weakness or dark urine.
  • Allergic reactions: rash, hives, swelling and anaphylaxis have been reported. Swelling of the face, lips or throat, or trouble breathing, needs emergency care.

How do you take ezetimibe?

The dose is one 10 mg tablet once a day, at any time, with or without food. If you miss a dose, take it when you remember and skip doubling up. An LDL check is reasonable as early as 4 weeks after starting.

From the label's interaction section:

  • Bile acid binders such as cholestyramine: take ezetimibe at least 2 hours before or 4 hours after.
  • Cyclosporine: the combination raises levels of both drugs, so cyclosporine levels need monitoring.
  • Fibrates: fenofibrate has been studied with ezetimibe, and other fibrates such as gemfibrozil aren't recommended with it.

How much does generic ezetimibe cost?

As of October 2026, Mark Cuban Cost Plus Drugs lists 30 tablets of ezetimibe 10 mg at $6.38, plus $5.25 standard shipping. The same listing shows a retail price of $113.40 at other pharmacies. Generic ezetimibe and brand-name Zetia contain the same active ingredient.

Prices change, so check before you fill. Insurance plans often count a documented ezetimibe trial (dose, how long, and your LDL on it) when they review a PCSK9 inhibitor request.

Trials in this guide

Each links to a plain summary with a quote from the PubMed abstract.

  • IMPROVE-IT (2015) · Ezetimibe + simvastatin · 18,144 peopleBenefit

Common questions

▸What is the main side effect of ezetimibe?

In placebo-controlled trials the most frequent were upper respiratory infections (4.3% vs 2.5%), diarrhea (4.1% vs 3.7%) and joint pain (3.0% vs 2.2%). With a statin, liver enzyme rises were a little more common (1.3% vs 0.4% on a statin alone), so your clinician may check liver tests.

▸Is ezetimibe better than a statin?

Ezetimibe works best alongside a statin for most people. On its own it lowered LDL by about 18% in label trials, and its outcomes trial, IMPROVE-IT, tested it on top of a statin. It's also an option for people who can't take a statin.

▸Is it better to take ezetimibe in the morning or at night?

Either works. The label says 10 mg once daily, with or without food, with no preferred time. The one timing rule applies to bile acid binders: take ezetimibe at least 2 hours before or 4 hours after them.

▸Does ezetimibe cause weight gain or hair loss?

Neither appears in the Zetia label's side-effect tables. If you notice a change after starting, tell your clinician, since other medicines and health changes can cause both.

▸How much does generic ezetimibe cost?

As of October 2026, Mark Cuban Cost Plus Drugs lists 30 tablets of ezetimibe 10 mg at $6.38, plus $5.25 standard shipping.

▸Is Nexletol the same as Zetia?

No. Nexletol is bempedoic acid, which lowers cholesterol production in the liver, while Zetia (ezetimibe) blocks cholesterol absorption in the gut. Nexlizet combines the two in one pill.

The full guideRead the complete, referenced version on Preval Health More detail, every study, and the date each figure was checked.

Read next

See it on lipid.site

Sources

Not medical advice. General education from published trials and drug labels, last updated October 2026. lipid.site is not a healthcare provider and cannot tell you what to take or change. Talk to your clinician before starting or stopping any treatment. If you have chest pain or other signs of a heart attack or stroke, call 911.