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SHEET /vs/simvastatin-vs-atorvastatin · COMPARISON

Simvastatin vs Atorvastatin: what is the difference?

SimvastatinC25H38O5 AtorvastatinC33H35FN2O5

How they differ

from source

Both are statins that block HMG-CoA reductase, the enzyme at the top of the body's cholesterol assembly line, but they come from different starting points. Simvastatin is made from lovastatin, a compound produced by a fungus, and it is swallowed as an inactive lactone that the liver opens up. Atorvastatin is fully synthetic, carries a fluorine atom and is active as taken: C33H35FN2O5 at 558.6 against simvastatin's C25H38O5 at 418.6. Atorvastatin, sold as Lipitor, became the best-selling medicine of all time, and simvastatin, sold as Zocor, was the statin of the landmark trials of the 1990s.

Side by side

 SimvastatinAtorvastatin
FormulaC25H38O5C33H35FN2O5
Molecular weight418.6 g/mol558.6 g/mol
FamilyCholesterol medicinesCholesterol medicines
Everyday groupPrescription medicinePrescription medicine
Functional groupsAlcohols, EstersAlcohols, Carboxylic Acids, Aromatics, Amides, Halogenated
GHS signal wordThe supplier-filed hazard label, not a statement about ordinary use.DangerWarning
CAS number79902-63-9134523-00-5
PubChem CID5445460823

Common questions

What is the difference between Simvastatin and Atorvastatin?
Both are statins that block HMG-CoA reductase, the enzyme at the top of the body's cholesterol assembly line, but they come from different starting points. Simvastatin is made from lovastatin, a compound produced by a fungus, and it is swallowed as an inactive lactone that the liver opens up. Atorvastatin is fully synthetic, carries a fluorine atom and is active as taken: C33H35FN2O5 at 558.6 against simvastatin's C25H38O5 at 418.6.
Is Simvastatin bigger than Atorvastatin?
Atorvastatin is the heavier molecule, 558.6 g/mol against 418.6 g/mol for Simvastatin. Simvastatin is C25H38O5 and Atorvastatin is C33H35FN2O5.

Read the full records: Simvastatin and Atorvastatin.