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fluvastatin vs simvastatin

Side-by-side comparison of fluvastatin and simvastatin Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

Drug Class
fluvastatin HMG-CoA Reductase Inhibitor (Statin)
simvastatin HMG-CoA Reductase Inhibitor (Statin)
Type
fluvastatin Prescription
simvastatin Prescription
Summary
fluvastatin

Fluvastatin (Lescol) is a medicine that helps lower cholesterol levels in your blood. It belongs to a group of drugs called statins.

simvastatin

Ezetimibe and simvastatin is a combination medicine that helps lower bad cholesterol (LDL-C) in your blood. It can also reduce the risk of heart problems like heart attack and stroke.

What It Treats
fluvastatin

This medicine is used to lower high cholesterol and triglycerides (fats) in adults and children (10-16 years old) with certain inherited cholesterol problems. It can also lower the risk of needing procedures to improve blood flow to the heart in adults with heart disease. Fluvastatin can also slow down the hardening of arteries in people with heart disease.

simvastatin

This medicine is used to lower high LDL cholesterol. It is used along with a healthy diet. It can help adults and children 10 years and older who have certain inherited cholesterol problems. It can also lower the risk of heart problems in adults with heart disease, blood vessel disease, or diabetes.

How It Works
fluvastatin

Fluvastatin works by blocking a substance your body needs to make cholesterol. This helps to lower bad cholesterol (LDL) and triglycerides while raising good cholesterol (HDL). By lowering cholesterol, it helps prevent heart disease and stroke.

simvastatin

Ezetimibe and simvastatin works in two ways to lower cholesterol. Ezetimibe stops your body from absorbing cholesterol from food. Simvastatin blocks a substance your body needs to make cholesterol.

Common Side Effects
fluvastatin
  • Headache
  • Upset stomach
  • Muscle pain
  • Abdominal pain
  • Nausea
simvastatin
  • Headache
  • Upper respiratory tract infection
  • Muscle pain
  • Diarrhea
FAERS Reports
fluvastatin
  • Muscle pain 669
  • Diarrhea 371
  • Feeling lightheaded 361
  • Shortness of breath 340
  • Feeling sick to your stomach 337
simvastatin
  • Tiredness 13,573
  • Feeling sick to your stomach 12,944
  • Shortness of breath 12,429
  • Diarrhea 11,813
  • Medicine not working 11,356
Serious Warnings
fluvastatin

This medicine can sometimes cause muscle problems, including rhabdomyolysis (a serious muscle breakdown that can lead to kidney damage). Tell your doctor right away if you have unexplained muscle pain, tenderness, or weakness, especially if you also have a fever or feel sick. This medicine can also cause liver problems. Your doctor should do blood tests to check your liver before you start taking fluvastatin and while you are taking it.

simvastatin

This medicine can cause muscle problems, including rhabdomyolysis, which can lead to kidney damage and death. The risk is higher if you are over 65, have kidney problems, or take certain other medicines. Tell your doctor right away if you have unexplained muscle pain, tenderness, or weakness, especially if you also have a fever or feel sick. This medicine can also cause liver problems. Your doctor may do blood tests to check your liver before and during treatment.

Pregnancy
fluvastatin

You should not take fluvastatin if you are pregnant or breastfeeding. This medicine can harm an unborn baby. If you are a woman who could become pregnant, use effective birth control while taking fluvastatin.

simvastatin

Do not take this medicine if you are pregnant. It can harm your unborn baby. Talk to your doctor if you are breastfeeding or plan to breastfeed, as it is not recommended during treatment with this medicine.

Also Compare — Nearby Drugs

How to Read This fluvastatin vs simvastatin Comparison

fluvastatin is classified in the HMG-CoA Reductase Inhibitor (Statin) drug class, while simvastatin sits within the HMG-CoA Reductase Inhibitor (Statin) class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, fluvastatin has 2,078 submissions while simvastatin has 62,115. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between fluvastatin and simvastatin — always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.