Zocor vs. Zetia
See how Zocor and Zetia compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Zocor is a statin that lowers LDL cholesterol and reduces cardiovascular risk, while Zetia works through a different pathway that blocks cholesterol absorption in the gut.
Doctors often prescribe Zetia alongside a statin like Zocor when diet and statin therapy alone haven't lowered LDL cholesterol enough.
Both drugs are taken once daily by mouth, and generic versions of both are now available at lower cost than their original brand-name prices.
Zocor vs. Zetia Drug Summary
Zocor
Zocor (simvastatin) is a statin that lowers LDL cholesterol and lowers the risk of heart attack, stroke, and death in adults with high cholesterol or heart disease. It's taken once daily as an oral tablet, with doses from 10 mg to 80 mg based on how much LDL lowering is needed.
Zetia
Zetia (ezetimibe) is a cholesterol absorption inhibitor that lowers LDL cholesterol by blocking its uptake in the intestine. It's taken once daily as a 10 mg oral tablet, either alone or combined with a statin or fenofibrate for added LDL lowering.
Zocor vs. Zetia Side Effects
Zocor
Zetia
Zocor vs. Zetia Dosage
Zocor
Zetia
| 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 |
| 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 |
Zocor
| 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
| 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 |
Zocor vs. Zetia Indications
Zocor
Zocor is an HMG-CoA reductase inhibitor approved to lower LDL cholesterol and reduce cardiovascular risk in adults with high cholesterol or existing heart disease. It's also approved to treat certain inherited high cholesterol conditions in adults and children over 10.
Lowers LDL cholesterol in adults with high cholesterol
Treats heterozygous familial hypercholesterolemia (ages 10+)
Used as add-on therapy for homozygous familial hypercholesterolemia
Reduces risk of heart attack, stroke, and death in high-risk adults
Zetia
Zetia is a cholesterol absorption inhibitor approved to lower LDL cholesterol on its own or combined with a statin or fenofibrate. It's also approved for adults and children over 10 with certain inherited high cholesterol conditions.
Lowers LDL cholesterol alone or combined with a statin
Treats heterozygous familial hypercholesterolemia with a statin (10+)
Lowers LDL in mixed hyperlipidemia combined with fenofibrate
Treats homozygous familial hypercholesterolemia combined with a statin
Zocor vs. Zetia Pros and Cons
Zocor
Zocor has decades of outcome data showing it lowers cardiovascular risk, not just cholesterol numbers, and is available as an affordable generic. Because it's a statin, it carries the class-wide risks of muscle-related side effects and drug interactions.
Pros
Reduces risk of heart attack, stroke, and death, not just LDL numbers
Decades of long-term outcome data since 1991
Flexible once-daily dosing from 10 mg to 80 mg
Cons
Carries risk of muscle pain and rhabdomyolysis, especially at 80 mg
Interacts with many common medications through CYP3A4
Contraindicated in pregnancy
Zetia
Zetia offers a different mechanism than statins, making it useful as an add-on when statin therapy alone doesn't lower LDL enough. It has a simple fixed dose and a lower risk of muscle-related side effects, though it lacks strong evidence for reducing cardiovascular events on its own.
Pros
Works through a different mechanism, useful when statins aren't enough alone
Single fixed 10 mg dose, no titration needed
Fewer muscle-related side effects than statins when used alone
Cons
No direct evidence it reduces heart attack or stroke risk on its own
Not approved as monotherapy for homozygous familial hypercholesterolemia
Risk of liver enzyme elevation increases when combined with a statin
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