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Atorvastatin

Posted on 25th Jun 2024 / Published in: Medications

What Does Atorvastatin Do?

Atorvastatin, a type of statin drug, is mainly used to lower ‘bad’ cholesterol levels in the blood (LDL), which helps prevent heart diseases. It's often prescribed to treat high cholesterol and to prevent cardiovascular diseases. In 2024, it was the most prescribed drug in the UK. 

How Does Atorvastatin Work?

Atorvastatin works by reducing the levels of "bad" cholesterol (LDL) and triglycerides in the bloodstream. By lowering these levels, it helps reduce the risk of heart disease.

Drug Type and Category of Atorvastatin

Atorvastatin is part of a group of medications known as statins.

Dosage of Atorvastatin

The appropriate dosage of atorvastatin varies from person to person. It's important to consult a healthcare professional who can determine the right dosage based on your health condition.

NICE Guidelines for Atorvastatin

Atorvastatin 80 mg is recommended to be offered to people with cardiovascular disease (CVD), regardless of their cholesterol level, unless certain criteria are met. A lower dose of atorvastatin should be offered if it could react with other drugs, there is a high risk of adverse effects, or the person would prefer a lower dose.

For primary prevention of CVD, atorvastatin 20 mg is recommended as the preferred initial high-intensity statin to use, as it is clinically and cost-effective. It should be offered to adults who choose statin treatment for primary prevention of CVD and have a 10% or greater 10-year risk of developing CVD, as estimated using the QRISK2 assessment tool.

The NICE guidelines recommend measuring total cholesterol, HDL cholesterol and non-HDL cholesterol at 3 months of high-intensity statin treatment, and aiming for a greater than 40% reduction in non-HDL cholesterol. If this target is not met, adherence and dosage should be optimised.

In summary, the key NICE recommendations are:

  • Atorvastatin 80 mg for secondary prevention of CV
  • Atorvastatin 20 mg for primary prevention of CVD in those with 10-year CVD risk
  • Measure lipids at 3 months and aim for >40% reduction in non-HDL cholesterol

Side Effects of Atorvastatin

Common Side Effects:

  • Muscle pain: This can range from mild to severe.
  • Diarrhoea: Digestive issues are relatively common.
  • Nausea: Some people may feel nauseous when taking atorvastatin.
  • Joint pain: Some users report joint pain.
  • Cold-like symptoms: This includes sore throat, runny nose, and nasal congestion.

Less Common Side Effects:

  • Liver damage: Rare cases of liver damage have been reported, indicated by elevated liver enzymes.
  • Rhabdomyolysis: A serious condition involving muscle breakdown, which can lead to kidney damage.
  • Increased blood sugar levels: This can sometimes lead to the development of type 2 diabetes.
  • Memory loss or confusion: Some users report cognitive side effects.
  • Allergic reactions: This can include rash, itching, or swelling, especially of the face, tongue, or throat.
  • Digestive problems: This can include indigestion, gas, and constipation.
  • Headache: Some individuals report headaches.

Rare and Serious Side Effects:

  • Myopathy: Muscle weakness and pain, which can be severe.
  • Kidney failure:  A consequence of severe muscle breakdown.
  • Severe allergic reactions: Including anaphylaxis, which requires immediate medical attention.

Monitoring and Precautions

  • Regular blood tests: To monitor liver function and muscle enzymes.
  • Report any unusual muscle pain: Especially if it is accompanied by fever or malaise.
  • Diabetic patients: Need to monitor blood sugar levels closely.
  • Avoid grapefruit juice: It can increase the risk of side effects by raising atorvastatin levels in the blood.

Drug Interactions

Atorvastatin can interact with various drugs, increasing the risk of side effects or reducing effectiveness. Notable interactions include:

  • Drugs that increase atorvastatin levels: Certain antibiotics and antifungals, HIV protease inhibitors, hepatitis C protease inhibitors, cyclosporine, and grapefruit juice.
  • Drugs that may have altered effectiveness or increased risk when taken with atorvastatin: Other cholesterol-lowering medications, warfarin and other anticoagulants, digoxin, and oral contraceptives.
  • Medications affecting metabolism: CYP3A4 inhibitors and inducers can increase or decrease atorvastatin levels.
  • Drugs that increase risk of side effects: Colchicine, certain antidepressants, and amlodipine.

Natural Alternatives to Atorvastatin

Natural alternatives include dietary changes, exercise, weight management, supplements, herbs, spices, and other lifestyle changes. 

Dietary Changes

Eating high-fiber foods like oats, barley, beans, lentils, fruits, and vegetables can help lower cholesterol levels. Consuming healthy fats from omega-3-rich foods like salmon, mackerel, flaxseeds, and walnuts is beneficial. Nuts like almonds and walnuts also improve cholesterol levels. Additionally, plant sterols and stanols, found in fortified foods and supplements, can help block cholesterol absorption.

Exercise

Regular physical activity can raise HDL (good) cholesterol and lower LDL (bad) cholesterol. Aim for at least 150 minutes of moderate aerobic exercise or 75 minutes of vigorous exercise per week.

Weight Management

Losing excess weight can significantly lower cholesterol levels. Even a small amount of weight loss can make a noticeable difference.

Supplements and Natural Products

Several supplements can help manage cholesterol levels. Red yeast rice contains monacolin K, similar to the statin drug lovastatin, but quality and dosage can vary. Psyllium husk, a soluble fiber, can reduce LDL cholesterol. Fish oil supplements, high in omega-3 fatty acids, can lower triglycerides and improve overall cholesterol levels. Garlic may modestly reduce cholesterol levels. Niacin (Vitamin B3) can increase HDL cholesterol and lower LDL cholesterol and triglycerides, though it should be used under medical supervision. Plant stanols and sterols, available in supplement form, can also help reduce LDL cholesterol.

Herbs and Spices

Certain herbs and spices can lower cholesterol. Turmeric contains curcumin, which has anti-inflammatory properties. Fenugreek seeds and leaves may lower cholesterol and improve blood sugar levels. Ginger may also help lower cholesterol levels.

Lifestyle Changes

Quitting smoking can improve HDL cholesterol levels and benefit overall heart health. Reducing alcohol consumption can also improve cholesterol levels.

By integrating these natural alternatives into your routine, you can manage your cholesterol levels and promote overall cardiovascular health.

Monitoring and Professional Guidance

Regular check-ups to monitor cholesterol levels are essential to track progress and make necessary adjustments. Always consult with healthcare providers before starting any new supplement or making significant lifestyle changes, especially if you have underlying health conditions or are taking other medications.

Interesting Facts about Atorvastatin

Atorvastatin was developed by Bruce Roth and his team at Warner-Lambert Company, which later became part of Pfizer. First approved by the FDA in 1996, atorvastatin quickly became one of the best-selling drugs in history under the brand name Lipitor, generating significant revenue for Pfizer. In 2024, it was the most prescribed drug in the UK. 

Atorvastatin belongs to the statin class of drugs, which work by inhibiting the enzyme HMG-CoA reductase. This enzyme is crucial in the liver's production of cholesterol, and its inhibition leads to decreased cholesterol levels in the blood. The medication is particularly effective at lowering LDL cholesterol, often referred to as "bad" cholesterol, and can reduce LDL levels by up to 60%, depending on the dose.

The patent for Lipitor expired in 2011, leading to the introduction of generic versions of atorvastatin. This made the medication more affordable and accessible to a broader population. Today, atorvastatin is prescribed worldwide and is one of the most commonly used medications for managing high cholesterol, significantly impacting public health by reducing the incidence of heart disease globally.

Controversy around Statins

There are many controversies around the use of statins, including those detailed by Malcolm Kendrick in his book, The Great Cholesterol Con. 

Kendrick argues that the link between high cholesterol and heart disease is not as strong as widely believed. He suggests that other factors, such as chronic inflammation, are more critical in the development of cardiovascular diseases. He also points out potential biases in statin research, such as pharmaceutical industry funding and selective reporting of positive results. He questions the integrity of studies that show significant benefits of statins.

Kendrick also argues that the side effects of statins are underreported and that the adverse effects, such as muscle pain, fatigue, and cognitive decline, significantly impact the quality of life of those taking the medication.

Many others report the benefits of cholesterol, for example, in the brain where it is essential. 

Disclaimer:

This article is generated for informational purposes only. It was created in June 2024. Medications and medical guidance can change over time. Therefore, it is essential to consult with your general practitioner or healthcare provider before making any decisions regarding medications or treatment plans. Your GP can provide personalised advice based on your specific health needs and conditions.

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