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ATOcor 20 Tablet

Atorvastatin (20mg)

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ATOcor 20 Tablet belongs to a group of medicines called statins. It is used to lower cholesterol and triglycerides, and to reduce the risk of heart disease. Cholesterol is a fatty substance that builds up in your blood vessels and causes narrowing, which may lead to a heart attack or stroke.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 01 Apr 2026 | 11:47 AM (IST)

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General Information

Contains

Atorvastatin (20mg)

Marketer

Dr Reddy's Laboratories Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

ATOcor 20 Tablet is a widely prescribed medicine and is regarded as safe for long-term use when taken as per the doctor's advice. It can be taken with a meal or on an empty stomach. You can take it at any time of the day, but try to take it at about the same time each day. Most people with high cholesterol do not feel ill, but stopping the medicine may increase cholesterol levels, thereby increasing the risk of heart disease and stroke.

It is important to have your cholesterol levels checked regularly. This medicine is only one part of the treatment program, which should also include a healthy diet, regular exercise, smoking cessation, moderation of alcohol intake, and weight reduction. You can eat normally while taking this medicine, but try to avoid foods that are high in fat.

Common side effects of this medicine include nausea, diarrhea, indigestion, muscle pain (on long-term use), and joint pain. These are usually mild and disappear after a short time. Consult your doctor if they persist or if you notice any yellowing of your eyes or get repeated or unexplained muscle pains.

This medicine should not be used in some conditions, such as liver disease. Also, pregnant women and breastfeeding mothers should not take this medicine, as it may harm the developing baby. Diabetic patients should monitor their blood sugar levels while taking this medicine, as it may increase their blood sugar levels. Your doctor may check your liver function before starting the treatment and monitor it regularly thereafter.

Uses of ATOcor Tablet

Benefits of ATOcor Tablet

Prevention of Heart attack
High levels of cholesterol can cause your blood vessels to narrow (atherosclerosis) and put you at risk of having a stroke or heart disease. Lowering the amount of this fat reduces the chances of this happening and helps you remain healthier for longer. Keep taking this medicine even if you feel well.

High cholesterol
ATOcor 20 Tablet lowers bad cholesterol (LDL) and increases good cholesterol (HDL), preventing fatty deposits from building up in the arteries. This helps maintain healthy blood circulation.

High triglycerides
ATOcor 20 Tablet helps lower triglyceride levels, a type of fat in the blood that can increase the risk of heart disease if too high. This supports overall heart health.

Side effects of ATOcor Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of ATOcor

Nausea
Pain in extremities
Urinary tract infection
Abnormal liver function tests
Indigestion
Diarrhea
Joint pain

How to use ATOcor Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. ATOcor 20 Tablet may be taken with or without food.

How ATOcor Tablet works

ATOcor 20 Tablet is a lipid-lowering medication (statin). It works by blocking an enzyme (HMG-CoA-reductase) that is required in the body to make cholesterol. It thus lowers "bad" cholesterol (LDL) and triglycerides, raising the level of "good" cholesterol (HDL).

All substitutes for ATOcor 20 Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

ATOcor 20 Tablet may cause diarrhea, gas, or an upset stomach. If any of these happen to you, please consult with your doctor.
Inform your doctor if you experience fatigue, muscle weakness, or muscle pain.
Your doctor may check your liver function before starting the treatment and regularly thereafter. Inform your doctor if you notice signs of liver problems, such as stomach pains, unusually dark urine, or yellowing of skin or eyes.
Inform your doctor if you have kidney disease, liver disease, or diabetes before starting treatment with this medicine. If you are diabetic, monitor your blood sugar level regularly, as ATOcor 20 Tablet may cause an increase in your blood sugar level.
Do not take ATOcor 20 Tablet if you are pregnant, planning a pregnancy, or breastfeeding.
ATOcor 20 Tablet treats high cholesterol by lowering "bad" cholesterol (LDL) and triglycerides (fats). It should be taken in addition to regular exercise and a low-fat diet.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking ATOcor 20 Tablet.

Pregnancy

UNSAFE

ATOcor 20 Tablet is highly unsafe during pregnancy. It can cause serious harm to the unborn baby, including birth defects and pregnancy loss. Do not use this medicine if you are pregnant or planning to become pregnant.

Breast feeding

UNSAFE

ATOcor 20 Tablet is unsafe to use during breastfeeding. Data suggests that the drug may cause toxicity to the baby.

Driving

UNSAFE

ATOcor 20 Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

SAFE IF PRESCRIBED

ATOcor 20 Tablet is probably safe to use in patients with kidney disease. Limited data suggest dose adjustment may not be needed.
However, inform your doctor if you have any underlying kidney disease.

Liver

UNSAFE

ATOcor 20 Tablet is unsafe to use in patients with liver disease and should be avoided.
Use of ATOcor 20 Tablet is not recommended in patients with severe liver disease and active liver disease.

Interaction with drugs

Taking ATOcor with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Atazanavir (Oral Route)

Do not consume Atorvastatin with Atazanavir. If concurrent use is essential, watch out for symptoms such as tiredness, muscle pain, tenderness or weakness and consult your doctor if you experience them. They may adjust the dose of Atorvastatin accordingly. Atazanavir may raise blood levels of Atorvastatin.

Severe

Bezafibrate (Oral Route)

If concurrent use is essential, watch out for symptoms such as unexplained muscle pain, tenderness or weakness and consult your doctor if you experience them. They may adjust the dose of Atorvastatin accordingly.

Severe

Imatinib mesylate (Oral Route)

Do not consume Atorvastatin with Imatinib mesylate. If concurrent use is essential, watch out for symptoms such as unexplained muscle pain, tenderness or weakness and consult your doctor if you experience them. They may adjust the dose of Atorvastatin accordingly. Imatinib mesylate may raise blood levels of Atorvastatin.

Severe

Posaconazole (Oral Route)

Do not consume Atorvastatin with Posaconazole. If concurrent use is essential, watch out for symptoms such as muscle pains or weakness and consult your doctor if you experience them. They may adjust the doses as per the observations.

Severe

Posaconazole (Injection Route)

Frequently asked questions

What should I know about high cholesterol?

Cholesterol is a type of fat present in your blood. Total cholesterol is determined by the total amount of LDL and HDL cholesterol in the body. LDL cholesterol is called “bad” cholesterol. Bad cholesterol can build up in the wall of your blood vessels and slow or obstruct blood flow to your heart, brain, and other organs. This can cause heart disease and stroke. HDL cholesterol is called “good” cholesterol as it prevents the bad cholesterol from building up in the blood vessels. High levels of triglycerides are also harmful to you.

Can ATOcor 20 Tablet cause muscle problems or muscle injury?

Yes, taking ATOcor 20 Tablet can cause muscle problems or muscle injury. This is because of the reduced oxygen supply to the muscle cells which leads to fatigue, muscle pain, tenderness, or muscle weakness. The soreness may be significant enough to interfere with your daily activities. Do not take it lightly and consult your doctor to know about ways to prevent this and to avoid making it worse.

Is ATOcor 20 Tablet used for lowering cholesterol?

ATOcor 20 Tablet belongs to a group of medicines known as statins, which lowers the level of lipids or fats. ATOcor 20 Tablet is used to lower lipids known as cholesterol and triglycerides in the blood when a low-fat diet and lifestyle changes fail to lower the levels of cholesterol and triglycerides. If you are at an increased risk of heart disease, ATOcor 20 Tablet can also be used to reduce such risk even if your cholesterol levels are normal. You should maintain a standard cholesterol-lowering diet during treatment.

Can ATOcor 20 Tablet be prescribed to children?

ATOcor 20 Tablet is for adults and children aged 10 years or more whose cholesterol levels do not come down enough with exercise and a low-fat diet. It is not approved for use in patients younger than 10 years old.

Is ATOcor 20 Tablet a blood thinner?

No, ATOcor 20 Tablet is not a blood thinner. It is a cholesterol-lowering medicine. It works by slowing down the production of cholesterol in the body. This further decreases the amount of cholesterol that may build up on the walls of the arteries and block blood flow to the part of the body. By lowering the levels of cholesterol and triglycerides it prevents the chances of stroke and heart attack.

Will taking ATOcor 20 Tablet lead to an increase in my risk of diabetes?

If you are at high risk of developing type 2 diabetes, taking ATOcor 20 Tablet may increase this risk slightly. This is because ATOcor 20 Tablet can raise your blood sugar a little. If you already have type 2 diabetes, your doctor may advise monitoring your blood sugar levels more closely for the first few months. Tell your doctor if you find it harder to control your blood sugar.

For how long do I need to take ATOcor 20 Tablet? Is it safe for long-term use?

You may need to take ATOcor 20 Tablet life long or for the duration prescribed by your doctor. The benefits will only continue for as long as you take it. If you stop taking ATOcor 20 Tablet without starting a different treatment, your cholesterol levels may rise again. It is considered to be safe and has few side effects if taken as directed by the doctor.

Does ATOcor 20 Tablet cause weight loss?

No, ATOcor 20 Tablet has not been reported to cause weight loss. However, weight gain has been reported as an uncommon side effect. Please consult your doctor if you experience weight loss while taking ATOcor 20 Tablet.

Can I stop taking ATOcor 20 Tablet?

No, you should not stop taking ATOcor 20 Tablet without consulting your doctor. If you think that ATOcor 20 Tablet is causing side effects, you should consult your doctor who may accordingly lower your dose or change your medicine.

Can I take alcohol with ATOcor 20 Tablet?

No, it is not advised to take alcohol with ATOcor 20 Tablet. This is because the risk of developing liver problems increases if you drink alcohol while taking this medicine. Moreover, there is a significant increase in the triglyceride levels if ATOcor 20 Tablet is taken along with alcohol. This can further lead to liver damage and also worsen some of the side effects such as muscle pain, muscle weakness, and tenderness. People with liver problems are therefore advised, not to take ATOcor 20 Tablet without consulting the doctor. They should also refrain from consuming alcohol while taking this medicine to get maximum benefit.

Does ATOcor 20 Tablet cause memory loss?

Memory loss may occur with ATOcor 20 Tablet in very rare cases. This is generally non-serious and may occur as early as 1 day or may take years to appear. These symptoms may disappear within about 3 weeks of discontinuing ATOcor 20 Tablet. However, you should consult your doctor if you experience this side effect as it could be due to some other reason.

When should I take ATOcor 20 Tablet?

ATOcor 20 Tablet is generally taken once a day. It can be taken in the morning or night or at any time of the day, with or without food. Try taking this medicine at the same time every day to help remember when to take it.

Does ATOcor 20 Tablet make you tired?

Yes, ATOcor 20 Tablet can make you feel tired. This is because they reduce the energy supply to the muscles in the body. However, the exact reason behind the phenomenon is unknown and needs more research. Tiredness usually occurs after exertion. Generalized fatigue is more often seen in people with heart disease or those suffering from liver illness. ATOcor 20 Tablet also causes muscle damage which further worsens the tiredness. Therefore, you must consult your doctor if you feel tired while taking ATOcor 20 Tablet.

What are the most common side effects of ATOcor 20 Tablet?

The common side effects of ATOcor 20 Tablet include nausea, indigestion, constipation, flatulence, diarrhea, headache, and aches and pains in your back and joints. It may also cause nosebleeds, sore throat, and cold-like symptoms, such as a runny nose, blocked nose, or sneezing.

Fact Box

Chemical Class

Diphenylpyrroles

Habit Forming

Therapeutic Class

CARDIAC

Action Class

HMG-CoA Reductase Inhibitors (Statins)

Related lab tests

Cholesterol - HDL

Cholesterol - LDL

Cholesterol - Total

Triglycerides

References

Bersot TP. Drug Therapy for Hypercholesterolemia and Dyslipidemia. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 893-98.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 104-105.
Gotto AM Jr, Opie LH. Lipid-Modifying and Antiatherosclerotic Drugs. In: Opie LH, Gersh BJ, editors. Drugs for the Heart. 8th ed. Philadelphia, Pennsylvania: Elsevier Saunders; 2013. pp. 819-20.
Atorvastatin calcium [Prescribing Information]. Dublin, Ireland: Pfizer Ireland Pharmaceuticals; 2009. [Accessed 14 Mar. 2019] (online) Available from:
Atorvastatin [Prescribing Information]. Mumbai, India: Blue Cross Laboratories Pvt. Ltd.; 2021. [Accessed 24 Mar. 2025] (online) Available from:

User feedback

Patients taking ATOcor 20 Tablet

Once A Day

100%

What are you using ATOcor Tablet for?

High cholesterol

80%

High LDL levels

20%

How much was the improvement?

Poor

100%

What were the side-effects while using ATOcor 20 Tablet?

Headache

100%

How do you take ATOcor Tablet?

With food

100%

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Dr Reddy's Laboratories Ltd
Address: Dr. Reddy's Laboratories Ltd., Village Malpur, P.O.Bhud, Baddi, Dist. Solan, H.P.

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver ATOcor 20 Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

Lab tests offered by us

Why we need a prescription?

Provide right medicines

Prescriptions are complex documents. We proof read and recheck at various steps to provide you the right medication in the correct form and dose

In accordance with the law

Most medicines cannot be sold without a valid prescription, as per the Drugs and Cosmetics Act, 1940 and Rules, 1945

Size:

3 options

ATOcor 20 Tablet

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General Information

Contains

Marketer

Storage

Product introduction

Uses of ATOcor Tablet

Benefits of ATOcor Tablet

Side effects of ATOcor Tablet

How to use ATOcor Tablet

How ATOcor Tablet works

All substitutes for ATOcor 20 Tablet

LipVAS 20 Tablet

Storvas 20 Tablet

TONact 20 Tablet

StatOR 20 Tablet

LipiCURE 20 Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Atazanavir (Oral Route)

Bezafibrate (Oral Route)

Imatinib mesylate (Oral Route)

Posaconazole (Oral Route)

Posaconazole (Injection Route)

Frequently asked questions

What should I know about high cholesterol?

Can ATOcor 20 Tablet cause muscle problems or muscle injury?

Is ATOcor 20 Tablet used for lowering cholesterol?

Can ATOcor 20 Tablet be prescribed to children?

Is ATOcor 20 Tablet a blood thinner?

Will taking ATOcor 20 Tablet lead to an increase in my risk of diabetes?

For how long do I need to take ATOcor 20 Tablet? Is it safe for long-term use?

Does ATOcor 20 Tablet cause weight loss?

Can I stop taking ATOcor 20 Tablet?

Can I take alcohol with ATOcor 20 Tablet?

Does ATOcor 20 Tablet cause memory loss?

When should I take ATOcor 20 Tablet?

Does ATOcor 20 Tablet make you tired?

What are the most common side effects of ATOcor 20 Tablet?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Cholesterol - HDL

Cholesterol - LDL

Cholesterol - Total

Triglycerides

References

User feedback

Patients taking ATOcor 20 Tablet

What are you using ATOcor Tablet for?

How much was the improvement?

What were the side-effects while using ATOcor 20 Tablet?

How do you take ATOcor Tablet?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

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