Lipitor vs. Zetia

See how Lipitor and Zetia compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Lipitor and Zetia both lower LDL cholesterol but work differently: Lipitor blocks cholesterol production in the liver, while Zetia blocks its absorption in the gut.

  • Lipitor has decades of outcomes data and is approved to cut heart attack and stroke risk, while Zetia is typically added on when a statin alone isn't enough.

  • Both drugs are available as low-cost generics, so price is unlikely to be the deciding factor between them.

Lipitor vs. Zetia Drug Summary

Lipitor

Lipitor (atorvastatin) is a statin that blocks an enzyme the liver uses to make cholesterol, lowering LDL and triglycerides. It's taken as a once-daily tablet at doses from 10 mg to 80 mg, and is also approved to reduce the risk of heart attack and stroke in people with cardiovascular risk factors.

Zetia

Zetia (ezetimibe) works differently: it blocks cholesterol absorption in the small intestine rather than acting on the liver. It's taken as a single 10 mg tablet once daily, either on its own or added to a statin for extra LDL lowering.

Lipitor vs. Zetia Side Effects

Lipitor

Most common
arthralgia (up to 6.9%)
diarrhea (up to 6.8%)
nasopharyngitis (up to 8.3%)
pain in extremity (up to 6.0%)

Zetia

Most common
arthralgia (up to 3.0%)
diarrhea (up to 4.1%)
upper respiratory tract infection (up to 4.3%)
sinusitis (up to 2.8%)

Lipitor vs. Zetia Dosage

Lipitor

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 10 mg once daily At the start
Maximum dose 80 mg once daily If needed
Dose changes 3 increases As tolerated

Zetia

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 10 mg once daily At the start
Maximum dose 10 mg once daily Same as starting
Dose changes None Fixed dose

Lipitor vs. Zetia Indications

Lipitor

Lipitor is FDA-approved to lower LDL cholesterol and triglycerides in adults and children 10 and older with dyslipidemia. It's also approved to reduce the risk of heart attack, stroke, and certain heart procedures in adults with cardiovascular risk factors or type 2 diabetes, and to treat familial hypercholesterolemia.

  • Lowering LDL cholesterol and triglycerides in adults and kids 10+

  • Reducing heart attack, stroke, and heart surgery risk with CV risk factors

  • Reducing heart attack and stroke risk in type 2 diabetes

  • Treating heterozygous familial hypercholesterolemia in teens

Zetia

Zetia is FDA-approved to lower LDL cholesterol in adults with primary hyperlipidemia, either alone or combined with a statin. It's also approved for mixed hyperlipidemia with fenofibrate, and for familial hypercholesterolemia in combination with a statin in patients 10 and older.

  • Lowering LDL alone or with a statin in primary hyperlipidemia

  • Lowering LDL in kids 10+ with heterozygous FH, plus a statin

  • Lowering LDL in mixed hyperlipidemia, combined with fenofibrate

  • Lowering LDL in homozygous FH, combined with a statin

Lipitor vs. Zetia Pros and Cons

Lipitor

Lipitor has the longest track record of any statin and is backed by large outcomes trials showing reduced heart attack and stroke risk. It's widely covered by insurance and available as a low-cost generic, though it does carry a real risk of muscle-related side effects.

Pros

  • Approved to reduce heart attack and stroke risk, not just lower LDL

  • Also lowers triglycerides in addition to LDL cholesterol

  • Decades of real-world safety data since 1996

  • Generic version available since 2011

Cons

  • Carries risk of muscle pain and, rarely, rhabdomyolysis

  • Can raise liver enzymes, requiring monitoring

  • Contraindicated during pregnancy and breastfeeding

Zetia

Zetia takes a different approach, blocking cholesterol absorption in the intestine instead of acting on the liver. It's often added to a statin for extra LDL lowering, or used alone in people who can't tolerate statins, though its effect by itself is more modest.

Pros

  • Works through a different mechanism, blocking absorption in the gut

  • Milder overall side effect profile when used alone

  • Option for patients who can't tolerate statin muscle symptoms

  • Only one tablet strength and dose to keep track of

Cons

  • Not approved as the sole treatment for homozygous FH

  • Provides more modest LDL reduction alone than a statin

  • Still carries some muscle-related risk when combined with a statin

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