Zocor vs. Leqvio
See how Zocor and Leqvio compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Zocor is a daily oral statin pill, while Leqvio is a subcutaneous injection given just twice a year after two starter doses three months apart.
Zocor has over three decades of safety data and is sold as an inexpensive generic, while Leqvio is a newer siRNA drug given in a clinic setting.
Both lower LDL cholesterol, but Leqvio is typically added on top of a statin rather than used in place of one.
Zocor vs. Leqvio Drug Summary
Zocor
Zocor (simvastatin) is a statin that lowers LDL cholesterol by blocking a liver enzyme the body uses to make cholesterol. It's taken as a tablet once daily, with doses ranging from 10 mg to 80 mg. It's approved to treat high cholesterol and to reduce the risk of heart attack, stroke, and death in people with heart disease or diabetes.
Leqvio
Leqvio (inclisiran) is a small interfering RNA (siRNA) drug that lowers LDL cholesterol by blocking the liver's production of PCSK9, a protein that limits cholesterol clearance. It's given as an injection, starting with two doses three months apart, then just one injection every six months after that. It's approved as an add-on to diet and exercise for adults and certain adolescents with high cholesterol or familial hypercholesterolemia.
Zocor vs. Leqvio Side Effects
Zocor
Leqvio
Zocor vs. Leqvio Dosage
Zocor
Leqvio
| 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 | 284 mg injection | Day 1 |
| Maximum dose | 284 mg injection | 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 |
Leqvio
| STAGE | DOSE | WHEN |
| Starting dose | 284 mg injection | Day 1 |
| Maximum dose | 284 mg injection | Same as starting |
| Dose changes | None | Fixed dose |
Zocor vs. Leqvio Indications
Zocor
Zocor is FDA-approved to lower LDL cholesterol in adults with high cholesterol, including inherited forms, and to reduce the risk of heart attack, stroke, and death in people with existing heart disease or diabetes at high risk. It's also approved for children as young as 10 with heterozygous familial hypercholesterolemia.
Lower LDL cholesterol in adults with high cholesterol
Heterozygous familial hypercholesterolemia (ages 10+)
Add-on therapy for homozygous familial hypercholesterolemia
Leqvio
Leqvio is FDA-approved as an add-on to diet and exercise to lower LDL cholesterol in adults with hypercholesterolemia. It's also approved for heterozygous familial hypercholesterolemia in patients 12 and older, and for homozygous familial hypercholesterolemia in pediatric patients 12 and older.
Add-on to diet and exercise for high LDL cholesterol
Heterozygous familial hypercholesterolemia (ages 12+)
Homozygous familial hypercholesterolemia in pediatric patients 12+
Zocor vs. Leqvio Pros and Cons
Zocor
Zocor is a low-cost generic with decades of real-world use, making it an accessible first-line option for most people with high cholesterol. It requires daily dosing and carries a dose-dependent risk of muscle problems, particularly at higher doses or when combined with certain other medications.
Pros
Inexpensive generic tablet, widely covered by insurance
Decades of real-world safety data since 1991
Comes in four dose strengths for flexible titration
Taken as a simple daily pill, no injections needed
Cons
Requires daily dosing and consistent adherence
Risk of muscle pain (myalgia) and rare rhabdomyolysis
Interacts with many common medications (CYP3A4 inhibitors)
Higher doses require slow titration and monitoring
Leqvio
Leqvio offers infrequent dosing, two starter injections followed by just one shot every six months, which can help people who struggle with daily pills. It's a newer drug, must be given by a healthcare provider, and carries a small risk of hypersensitivity reactions including anaphylaxis.
Pros
Only two injections per year after the starter doses
Removes the burden of remembering a daily pill
Distinct siRNA mechanism, an option when statins aren't tolerated
No boxed warning on the current label
Cons
Must be given by a healthcare provider, not self-injected at home
Newer drug with less long-term safety data than Zocor
Risk of hypersensitivity reactions, including anaphylaxis
Not approved for homozygous FH in adults, only pediatric patients
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