Atazor 300 Capsule

Reviewed By Dr. Lalit Kanodia, MBA, MD Pharmacology

Last updated on 14 Nov 2025 | 12:30 PM (IST)

Atazor 300 Capsule is an antiviral or antiretroviral medicine. It is used in the treatment of HIV infection. It stops the virus from producing new viruses and clears up your infection.

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General Information

Contains

Atazanavir (300mg)

Marketer

Emcure Pharmaceuticals Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Atazor 300 Capsule should be taken with food, as this increases the absorption of the medicine into the body. You should take it in the dose and duration as advised by your doctor. Taking it at the same time every day will help you to remember to take it. Do not stop taking it until you have finished the complete course, even when you feel better. If you stop taking this medicine too early then infection may return or worsen.

The most common side effects of this medicine include rash, headache, dizziness, and vomiting. These are usually mild but let your doctor know if they bother you or last more than a few days.

Before using it, you should tell your doctor if you are allergic to any antibiotics or have any kidney or liver problems. You should also let your doctor know all other medicines you are taking as they may affect, or be affected by this medicine. Pregnant and breastfeeding mothers should consult their doctor before using it. Your doctor may monitor your liver function while taking this medication.

Uses of Atazor Capsule

HIV infection

Benefits of Atazor Capsule

HIV infection
HIV infection weakens the immune system by attacking certain white blood cells, making the body more vulnerable to infections and illnesses. Atazor 300 Capsule helps control the virus, reducing the amount of HIV in the blood and allowing the immune system to work better. This helps slow the progression of the disease and improves overall health and quality of life.

Side effects of Atazor Capsule

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 Atazor

Rash
Headache
Vomiting
Nausea
Diarrhea
Cough
Muscle pain
Jaundice
Fever
Increased bilirubin in the blood

How to use Atazor Capsule

Take this medicine in the dose and duration as advised by your doctor. Atazor 300 Capsule should be taken with or after food.

How Atazor Capsule works

Atazor 300 Capsule is an anti-HIV medication. It works by interfering with an enzyme (protease), which is required by HIV-infected cells to make new viruses. This stops the production of new viruses.

Quick tips

Atazor 300 Capsule should be taken with food.
Do not skip any doses and finish the full course of treatment even if you feel better.
Do not take antacids an hour before or two hours after taking Atazor 300 Capsule.
It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
Stop taking medications (prescribed for erectile dysfunction) like sildenafil or tadalafil while on treatment with this medicine.
Your doctor may check your liver function regularly. Inform your doctor if you develop abdominal pain, loss of appetite darkened urine or yellowing of the eyes or skin (jaundice).
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.
Atazor 300 Capsule should be taken with food.
Do not skip any doses and finish the full course of treatment even if you feel better.
Do not take antacids an hour before or two hours after taking Atazor 300 Capsule.
It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
Stop taking medications (prescribed for erectile dysfunction) like sildenafil or tadalafil while on treatment with this medicine.
Your doctor may check your liver function regularly. Inform your doctor if you develop abdominal pain, loss of appetite darkened urine or yellowing of the eyes or skin (jaundice).
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Atazor 300 Capsule. Please consult your doctor.

Pregnancy

SAFE IF PRESCRIBED

$med_name is generally considered safe to use during pregnancy. Animal studies do not indicate harmful effects. However, there are limited human studies.

Breast feeding

SAFE IF PRESCRIBED

Atazor 300 Capsule may be safe to use during breastfeeding. Animal studies have shown low or no adverse effects to the developing baby; however, there are limited human studies.

Driving

UNSAFE

Atazor 300 Capsule may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

SAFE IF PRESCRIBED

Atazor 300 Capsule is probably safe to use in patients with kidney disease. Limited data suggest dose adjustment may not be needed.

Liver

CAUTION

Atazor 300 Capsule should be used with caution in patients with liver disease. Dose adjustment may be needed.
Use of Atazor 300 Capsule is not recommended in patients with moderate and severe liver disease.

Interaction with drugs

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

Life-threatening

Ranolazine (Oral Route)

Do not consume Ranolazine with Atazanavir.

Life-threatening

Domperidone (Oral Route)

Do not consume Domperidone with Atazanavir.

Life-threatening

Simvastatin (Oral Route)

Do not consume Simvastatin with Atazanavir. Atazanavir may raise blood levels of Simvastatin.

Life-threatening

Ivabradine (Oral Route)

Do not consume Ivabradine with Atazanavir. Atazanavir may raise blood levels of Ivabradine.

Life-threatening

Lovastatin (Oral Route)

Do not consume Lovastatin with Atazanavir. Atazanavir may raise blood levels of Lovastatin.

Frequently asked questions

What is Atazor 300 Capsule used for?

Atazor 300 Capsule is used in combination with other anti-retroviral medicines for the treatment of human immunodeficiency virus (HIV-1) infection

Does Atazor 300 Capsule cause hyperbilirubinemia?

Yes, hyperbilirubinemia (an increase in the level of bilirubin in the blood) is a known side effect of Atazor 300 Capsule.

How does Atazor 300 Capsule work?

Atazor 300 Capsule belong to a group of medications called azapeptide HIV-1 protease inhibitor. It inhibits some viral polypeptides in the HIV-1 infected cells of the body and inhibits and prevents maturation of virus in the cells. Atazor 300 Capsule does not cure HIV infections; it decreases the risks of developing acquired immunodeficiency syndrome (AIDS) and other HIV-related illnesses due to compromised immunity

Does Atazor 300 Capsule cause lipodystrophy?

Yes, lipodystrophy (changes in body fat - build up or loss of body fat) is a known side effect of Atazor 300 Capsule

Fact Box

Chemical Class

Valine derivative

Habit Forming

Therapeutic Class

ANTI INFECTIVES

Action Class

Protease Inhibitors

Related lab tests

HIV 1 & 2, Ab Western Blot

HIV 1 And 2 Antibody - Chromatography

HIV 1 And 2 Antibody - ELISA

References

Flexner C. Antiretroviral Agents and Treatment of HIV Infection. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 1652-653.
Safrin S. Antiviral Agents. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 863.
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. 97-98.
Atazanavir. Princeton, New Jersey: Bristol-Myers Squibb Company; 2003 [revised Oct. 2011]. [Accessed 01 Apr. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 01 Apr. 2019] (online) Available from:

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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: Emcure Pharmaceuticals Ltd
Address: 255/2, Hinjawadi, Pune - 411057, India / Godown A, Gat No. 408 and 410, Vill: Urse, Tal: Maval, Pune-410 506, Maharashtra, India.

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Atazor 300 Capsule

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Atazor Capsule

Benefits of Atazor Capsule

Side effects of Atazor Capsule

How to use Atazor Capsule

How Atazor Capsule works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Ranolazine (Oral Route)

Domperidone (Oral Route)

Simvastatin (Oral Route)

Ivabradine (Oral Route)

Lovastatin (Oral Route)

Frequently asked questions

What is Atazor 300 Capsule used for?

Does Atazor 300 Capsule cause hyperbilirubinemia?

How does Atazor 300 Capsule work?

Does Atazor 300 Capsule cause lipodystrophy?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

HIV 1 & 2, Ab Western Blot

HIV 1 And 2 Antibody - Chromatography

HIV 1 And 2 Antibody - ELISA

References

User feedback

How do you take Atazor Capsule?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests