CRESTOR vs Omega-3 Fish Oil

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Attribute	CRESTOR	Omega-3 Fish Oil
Rating	70/100	New
Pharmacy pays	~$1.37 /30	~$5.16 /30
Type	RX	SUPPLEMENT
Active ingredient	ROSUVASTATIN CALCIUM	Omega-3 Fatty Acids
Manufacturer	Astrazeneca	—
Dosage forms	Tablet	—
Drug class	Hmg-Coa Reductase Inhibitor	—
Boxed warning	None	None
Half-life	about 19 hours	—
Treats	Coronary Artery Disease, Hypercholesterolemia, Hyperlipoproteinemias	—

crestor omega-3 fish oil

Rating

70/100

New

Pharmacy pays

~$1.37 /30

~$5.16 /30

Type

SUPPLEMENT

Active ingredient

ROSUVASTATIN CALCIUM

Omega-3 Fatty Acids

Manufacturer

Astrazeneca

—

Dosage forms

Tablet

—

Drug class

Hmg-Coa Reductase Inhibitor

—

Boxed warning

None

Half-life

about 19 hours

—

Treats

Coronary Artery Disease, Hypercholesterolemia, Hyperlipoproteinemias

—

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Where to buy

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Frequently asked questions

Which is cheaper, Crestor or Omega-3 Fish Oil?

Crestor costs pharmacies less to acquire — about $1.37 vs $5.16 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Crestor and Omega-3 Fish Oil?

Crestor contains Rosuvastatin Calcium, while Omega-3 Fish Oil contains Omega-3 Fatty Acids — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.