RosuvastatinRosuvastatin Calcium

About Rosuvastatin

Rosuvastatin blocks HMG-CoA reductase, the liver enzyme that makes cholesterol, so the liver clears more LDL cholesterol from the blood. The Crestor label covers reducing the risk of major cardiovascular events (cardiovascular death, nonfatal heart attack, nonfatal stroke or a procedure to reopen an artery) in adults at increased risk; with diet and exercise, lowering LDL cholesterol in adults with high cholesterol and slowing the progression of atherosclerosis; lowering LDL in heterozygous familial hypercholesterolemia from age 8 and in the homozygous form from age 7; and, with diet, primary dysbetalipoproteinemia and high triglycerides in adults. Adults take 5 to 40 mg once a day, and LDL can be checked as early as four weeks after starting. Children with the heterozygous form take 5 to 10 mg from age 8 to under 10 and 5 to 20 mg from age 10, and children with the homozygous form take 20 mg.

There is no boxed warning. Rosuvastatin is not taken with acute liver failure or decompensated cirrhosis, or after an allergic reaction to it. The label warns of muscle damage (myopathy and rhabdomyolysis), more likely at 65 or older, in Asian patients, with uncontrolled hypothyroidism or kidney impairment, at higher doses (more so at 40 mg) and with some other medicines; a rare immune-mediated muscle disease; liver problems; protein or blood in the urine, seen more often at 40 mg, with a lower dose considered if it persists without explanation; and rises in HbA1c and fasting blood sugar. Headache, nausea, muscle aches, weakness and constipation are the most common side effects. The label says to stop it when pregnancy is recognized or, alternatively, to weigh the patient’s ongoing treatment needs, and breastfeeding is not recommended.

Asian patients have about twice the drug exposure, so they start at 5 mg, and severe kidney impairment without dialysis means starting at 5 mg and staying at or below 10 mg. Many medicines cap the dose: 5 mg with cyclosporine, darolutamide, belumosudil or vadadustat; 10 mg with teriflunomide, capmatinib, enasidenib, momelotinib, regorafenib and several HIV and hepatitis C combinations, or with gemfibrozil when it cannot be avoided; 20 mg with ticagrelor, febuxostat or fostamatinib, or with tafamidis when it cannot be avoided. The label has changed three times since mid-2024: ticagrelor was added in July 2024 and given its 20 mg cap in April 2026; also in April 2026, the heart-event use was reworded from adults without established coronary heart disease selected by age, a high-sensitivity C-reactive protein level and at least one other risk factor, to adults at increased risk; and vadadustat was added in September 2026. Ezallor Sprinkle capsules, which could be opened onto applesauce or pudding, are listed by the FDA as discontinued.

Taking Rosuvastatin

How to take it

Once a day at any time, with or without food, swallowed whole. If you take an antacid containing aluminum and magnesium hydroxide, take rosuvastatin at least 2 hours before it.

If you miss a dose

If a dose is missed, the Crestor label says not to take an extra dose and to resume with the next scheduled dose. Never take two doses at once.

Storage

At room temperature, 68°F to 77°F (20°C to 25°C), in a dry place, out of reach of children.

Interactions to know about

Cyclosporine, darolutamide, belumosudil and vadadustat limit it to 5 mg a day, several HIV and hepatitis C combinations, teriflunomide and some cancer medicines to 10 mg, and ticagrelor, febuxostat and fostamatinib to 20 mg. Gemfibrozil, tafamidis, sofosbuvir with velpatasvir and voxilaprevir, and ledipasvir with sofosbuvir are avoided, and other fibrates, niacin and colchicine add to the muscle risk. With warfarin, the INR is checked before rosuvastatin is started and again after it is started, adjusted or stopped.

This summarizes the official prescribing information. Your prescriber’s and pharmacist’s instructions, and the leaflet that comes with your medicine, take priority.

Why the cash price for Rosuvastatin differs from pharmacy to pharmacy

Generic rosuvastatin comes from many makers rated equivalent to Crestor and costs pharmacies little, so a quote is mostly the dispensing fee and markup, which differ between pharmacies. A prescription that names Crestor and blocks substitution is priced as a brand.

A ninety-day fill is dispensed once instead of three times, so any per-fill dispensing fee is charged once. Each strength is a separate product, so if the dose changes because of kidney function or a new medicine, the new strength needs its own quote.

Ways to pay less for Rosuvastatin without insurance

• Ask for generic rosuvastatin, and make sure the prescription does not block substitution for Crestor.
• Ask whether rosuvastatin is on the pharmacy’s flat-price generic list, and compare more than one pharmacy.
• Once your dose is settled, ask for a ninety-day supply.
• If you used Ezallor Sprinkle or Roszet, both now discontinued, ask the prescriber what to take instead; Roszet’s two ingredients are each sold as generic tablets.
• Upload the prescription to Script Unlock so licensed pharmacies can quote their cash price. You pay the pharmacy directly.

Questions to ask your pharmacist about Rosuvastatin

1. 1.Does my ancestry, kidney function or any of my medicines limit the dose I should take?
2. 2.Which muscle symptoms or changes in my urine should I report?
3. 3.How far apart should I take it and my antacid?
4. 4.Do I need an INR check because I take warfarin?

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