atazor 300 capsule - Atazanavir (300mg) medicine

atazor 300 capsule - Uses, Price, Side Effects & Substitutes

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๐Ÿญ Emcure Pharmaceuticals Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jun 26, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
Dr. SaathiMed Expert Panel | Jun 26, 2026

What is atazor 300 capsule used for?

Atazor 200mg Capsule (Atazanavir) is used to treat ANTI INFECTIVES. It contains Atazanavir (300mg), which Inhibits HIV-1 protease, preventing cleavage of viral polyproteins and maturatio. Always consult your doctor before use. Take as prescribed.

  • Generic Name: Atazanavir
  • Manufacturer: Emcure Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: B
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? India is the largest provider of generic medicines globally, supplying over 50% of global vaccine demand.

๐Ÿ’Š atazor 300 capsule Uses & Benefits

Treatment of HIV-1 infection in combination with other antiretroviral agents.

Off-label uses: Not typically used off-label; investigational for COVID-19 (not recommended).

๐Ÿ“‹ Drug Information

Generic Name(s)Atazanavir
Brand NameAtazor 200mg Capsule
ManufacturerEmcure Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassProtease (HIV) inhibitors
Route of AdministrationOral
StorageStore at 20-25ยฐC (68-77ยฐF); protect from moisture.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionAbsorbed rapidly after oral administration; absorption is enhanced with food.
DistributionDistributes widely into tissues; high protein binding.
Protein Binding86%
MetabolismExtensively metabolized in the liver via CYP3A4 isoenzyme.
Half-LifeApproximately 7 hours (with normal hepatic function); prolonged in hepatic impairment.
ExcretionPrimarily excreted in feces (79%) and urine (13%) as metabolites and unchanged drug.
BioavailabilityNot well defined; increased with food.
Onset of ActionNot specified; antiviral effect begins after absorption.
Peak Plasma Time2-3 hours post-dose (with food).
Duration of ActionApproximately 24 hours (once-daily dosing).

How It Works

Inhibits HIV-1 protease, preventing cleavage of viral polyproteins and maturation of infectious virions.

Mechanism Steps

1Atazanavir binds to the active site of HIV-1 protease.
2Inhibits the enzyme's ability to cleave the Gag-Pol polyprotein.
3Prevents formation of mature, infectious virions.

๐Ÿ’ก How to Take atazor 300 capsule

Follow your doctor's prescription exactly.

โš ๏ธ Side Effects of atazor 300 capsule

โœ… Common Side Effects

  • Nausea
  • Jaundice/scleral icterus
  • Headache
  • Diarrhea
  • Abdominal pain
  • Insomnia

๐Ÿšจ Serious Side Effects

  • Hepatotoxicity
  • Nephrolithiasis
  • PR interval prolongation
  • Rash (Stevens-Johnson syndrome rare)
  • Hyperbilirubinemia

โš ๏ธ Rare Side Effects

  • Cholelithiasis
  • Pancreatitis
  • Peripheral neuropathy
  • Diabetes mellitus

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Rifampin Major Significant decrease in atazanavir concentrations, leading to loss of virologic response.
St. John's Wort Major Reduces atazanavir plasma concentrations.
Nevirapine Major Decreases atazanavir exposure.
Tipranavir/ritonavir Major Decreases atazanavir concentrations.
Bosentan Major Decreases atazanavir concentrations.
Warfarin Moderate Increased bleeding risk due to altered warfarin metabolism.
Oral contraceptives Moderate Decreased efficacy of oral contraceptives; alternative contraception recommended.
Atorvastatin Moderate Increased risk of myopathy/rhabdomyolysis; monitor or use alternative statin.
Sildenafil Moderate Increased sildenafil exposure; risk of hypotension, priapism.
Tadalafil Moderate Increased tadalafil exposure; risk of adverse effects.
Methadone Minor No significant interaction; monitor for methadone withdrawal.
Buprenorphine Minor No significant interaction.
Antacids Minor Reduced atazanavir absorption; separate by at least 2 hours.
H2-receptor antagonists Minor Reduced atazanavir absorption; separate by at least 10 hours.

๐Ÿšจ Major Interactions

  • Rifampin
  • St. John's Wort
  • Nevirapine
  • Tipranavir/ritonavir
  • Bosentan

โšก Moderate Interactions

  • Warfarin
  • Oral contraceptives
  • Atorvastatin
  • Sildenafil
  • Tadalafil

โ„น๏ธ Minor Interactions

  • Methadone
  • Buprenorphine
  • Antacids
  • H2-receptor antagonists

๐Ÿฝ๏ธ Food Interactions

Take with food to enhance absorption; avoid taking with antacids or buffered medications.

๐Ÿท Alcohol Interaction

No specific interaction; may increase hepatotoxicity risk in patients with liver disease.

๐Ÿ›ก๏ธ Safety & Warnings

๐Ÿšซ Contraindications

Hypersensitivity to atazanavir; co-administration with drugs highly dependent on CYP3A4 for clearance (e.g., rifampin, St. John's Wort, nevirapine, tipranavir/ritonavir, bosentan).

๐Ÿ“Š Monitoring Parameters

HIV viral load, CD4 count, liver function tests, bilirubin, ECG (if pre-existing conduction disease).

๐Ÿคฑ Lactation Safety

Not recommended; HIV-infected mothers should not breastfeed to avoid transmission.

๐Ÿ’Š Overdose Management

No specific antidote; supportive care including monitoring of vital signs and ECG.

โฐ Missed Dose

If missed within 6 hours of usual time, take with food; if >6 hours, skip and resume next dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

Dr. SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jun 26, 2026

๐Ÿ”— View Profile

๐Ÿ”„ Substitutes for atazor 300 capsule

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Alternative brands with exact same active ingredient (Atazanavir (300mg)):

Medical Note: Always consult your doctor before switching medications.

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