{"id":631701,"date":"2025-03-18T15:19:36","date_gmt":"2025-03-18T19:19:36","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=631701"},"modified":"2026-03-24T18:26:39","modified_gmt":"2026-03-24T22:26:39","slug":"which-is-safer-atorvastatin-or-rosuvastatin","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/which-is-safer-atorvastatin-or-rosuvastatin\/","title":{"rendered":"Which is safer, atorvastatin or rosuvastatin?"},"content":{"rendered":"

Statins are the most commonly recommended and prescribed cholesterol-lowering drugs, and within the drug class, <\/span>atorvastatin<\/span><\/a> and <\/span>rosuvastatin<\/span><\/a> are esteemed for their potency in reducing <\/span>low-density lipoprotein cholesterol (LDL) levels<\/span><\/a>, known as the \u201cbad cholesterol.\u201d As a result, they are frequently chosen for the prevention of heart attack and stroke in patients with the highest levels of risk. Choosing between the two medications could be a matter of your healthcare provider\u2019s preference, but knowing about the potential side effects of atorvastatin and rosuvastatin can inform your decision. Certain adverse effects can be more likely with one, while other side effects occur more often with the other.\u00a0<\/span><\/p>\n

Difference between atorvastatin and rosuvastatin<\/span><\/h2>\n

Atorvastatin and rosuvastatin are both generic medications that are also available as brand-name medications. Atorvastatin is available as brand-name <\/span>Lipitor<\/span><\/a>, and rosuvastatin is available as brand-name <\/span>Crestor<\/span><\/a>. Atorvastatin and rosuvastatin, like all <\/span>statins<\/span><\/a>, work by inhibiting the HMG CoA-reductase enzyme and thereby reducing lipid production in the liver. Because of their potency, the American Heart Association and American College of Cardiology classifies them as high-intensity statins.\u00a0<\/span><\/p>\n

Both atorvastatin and rosuvastatin are available in tablet form with various dosing strengths, each taken once daily. Prices for the two drugs are similar. <\/span>Without insurance<\/span><\/a>, the average retail price of 30, 10 mg rosuvastatin tablets is $227 for 30, 10 mg tablets, and the average retail price of rosuvastatin is $140 for 30, 40 mg tablets. With a <\/span>SingleCare prescription discount card<\/span><\/a>, you could pay $9 at Kroger for atorvastatin and $8 at Kroger for rosuvastatin. While quite similar, they do have their differences.<\/span><\/p>\n

Metabolism<\/span><\/h3>\n

The liver metabolizes atorvastatin to a much higher extent than it metabolizes rosuvastatin. Specifically, the CYP3A4 enzyme is responsible for metabolizing atorvastatin. To a lesser extent, the CYP2C9 enzyme is responsible for metabolizing rosuvastatin.<\/span><\/p>\n

Distribution<\/span><\/h3>\n

Rosuvastatin is more hydrophilic, meaning it tends to distribute into fatty tissues and cells. In contrast, rosuvastatin is carried by proteins in plasma and acts more specifically within the liver.<\/span><\/p>\n

Potency<\/span><\/h3>\n

With regard to potency in lowering LDL cholesterol levels and triglycerides, <\/span>rosuvastatin is more powerful<\/span><\/a> than atorvastatin. As such, rosuvastatin may be better at reducing the risk of cardiovascular events than atorvastatin. They are equally recommended in national guidelines when high-intensity statin therapy is indicated, such as for the secondary prevention of another heart attack in the setting of coronary artery disease.<\/span><\/p>\n

Is atorvastatin safer than rosuvastatin?<\/span><\/h2>\n

As you can see, there are important differences between the two titans of the statin world. Those distinctions may explain why rosuvastatin may carry a higher risk for some side effects, while atorvastatin has a higher risk for others. While neither can be labeled as safer overall, arguments can be made for either when it comes to specific adverse effects.<\/span><\/p>\n

Muscle pain<\/span><\/h3>\n

Muscle pain (myalgia is a commonly feared statin side effect, along with extreme cases of rhabdomyolysis (muscle breakdown). <\/span>One study<\/span><\/a> found that rosuvastatin had similar rates of myalgia as placebo pills, while atorvastatin was more likely to cause muscle pain. This was just one study, though, and <\/span>other studies<\/span><\/a> indicate similar drug tolerability among both drugs.\u00a0<\/span><\/p>\n

Kidney dysfunction<\/span><\/h3>\n

Kidney disease is a common concern among people with hypertension (high blood pressure) and diabetes mellitus, two conditions that often occur with high levels of LDL (bad) cholesterol. Some clinical trials have suggested that rosuvastatin may have the <\/span>potential to cause abnormal kidney function tests<\/span><\/a>, although other research refutes this. If there is a risk of this outcome, it is thought to be outweighed by the drug\u2019s benefits in heart disease and atherosclerosis. Healthcare providers may choose to limit rosuvastatin dosage<\/a> in people with severe kidney disease.<\/span><\/p>\n

Diabetes mellitus<\/span><\/h3>\n

High lipid levels and high blood sugar (diabetes mellitus) frequently occur together. Although rosuvastatin was associated with higher rates of <\/span>new-onset diabetes in some studies<\/span><\/a>, it may still be advised for people with diabetes or who are at risk for diabetes. The reason is that these patients have a high risk of heart disease, which statins can lower.\u00a0<\/span><\/p>\n

Memory loss<\/span><\/h3>\n

Case reports of memory loss<\/span><\/a> associated with statin use, including atorvastatin, have raised alarms. The concerns revolved around whether atorvastatin and other lipophilic statins could cause adverse effects on brain function. On the other hand, dementia risk seems to be lowered by using statins. Once again, the benefits of atorvastatin are generally felt to outweigh any neurologic risk in most cases.<\/span><\/p>\n

Drug interactions<\/span><\/h3>\n

Atorvastatin\u2019s metabolism via the liver\u2019s CYP3A4 enzyme puts it in conflict with more prescription drugs than rosuvastatin. Drug interactions can result in heightened or lessened effects of atorvastatin, and consequently, a patient could potentially experience more adverse effects from the statin or less cardiovascular benefit. Therapy with any statin runs a risk of drug interaction. If you\u2019re a patient taking statins, it is important for you to report an accurate list of all medications and supplements you\u2019re taking to your healthcare provider.\u00a0<\/span><\/p>\n

Atorvastatin side effects, interactions, and warnings<\/span><\/h2>\n

Atorvastatin and its brand-name counterpart Lipitor are generally well-tolerated without side effects for most patients. The list of atorvastatin and <\/span>Lipitor\u2019s side effects<\/span><\/a> seems less daunting when one realizes that the most common side effect described in the drug label, nasopharyngitis (cold symptoms), occurred in only about 8% of patients. Additional common side effects include:<\/span><\/p>\n