aarbact 4gm/0.5gm injection - Piperacillin (4gm) + Tazobactum (0.5gm) medicine

Aarbact 4gm/0.5gm Injection - Uses, Price, Side Effects

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๐Ÿญ Alpha Aromatic Pvt Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jun 28, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
SaathiMed Expert Panel | Jun 28, 2026

What is aarbact 4gm/0.5gm injection used for?

Aarbact 4gm/0.5gm Injection is a combination antibiotic containing Piperacillin (a penicillin-type antibiotic) and Tazobactam (a beta-lactamase inhibitor). It is used to treat various bacterial infections such as pneumonia, intra-abdominal infections, and urinary tract infections. Piperacillin kills bacteria by inhibiting cell wall synthesis, while Tazobactam prevents bacterial resistance by blocking beta-lactamase enzymes.

  • Generic Name: Piperacillin + Tazobactam
  • Manufacturer: Alpha Aromatic Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: B
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

๐Ÿ’Š aarbact 4gm/0.5gm injection Uses & Benefits

Intra-abdominal infections, urinary tract infections, respiratory tract infections, skin and soft tissue infections, septicemia, febrile neutropenia.

Off-label uses: Bone and joint infections, Endocarditis, Meningitis

๐Ÿ“‹ Drug Information

Generic Name(s)Piperacillin + Tazobactam
Brand NameAhentaz 4.5 Injection
ManufacturerAlpha Aromatic Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassPenicillin antibiotic with beta-lactamase inhibitor
Route of AdministrationIntravenous (IV) infusion
StorageStore at 20-25ยฐC (68-77ยฐF); reconstituted solution stable for 24 hours at room temperature or 48 hours under refrigeration.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionIntravenous administration results in complete bioavailability
DistributionWidely distributed into tissues and body fluids including lungs, intestinal mucosa, bile, bone, and CSF (inflamed meninges)
Protein BindingPiperacillin: 30%; Tazobactam: 30%
MetabolismPiperacillin: partially hepatic; Tazobactam: hepatic to inactive metabolite
Half-LifePiperacillin: 0.7-1.2 hours; Tazobactam: 0.7-1.2 hours
ExcretionRenal (primarily unchanged drug via glomerular filtration and tubular secretion)
Bioavailability100% (IV administration)
Onset of ActionRapid (within minutes)
Peak Plasma TimeImmediately after IV infusion
Duration of Action6-8 hours

How It Works

Piperacillin inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs); Tazobactam irreversibly inhibits beta-lactamases, protecting piperacillin from degradation.

Mechanism Steps

1Piperacillin binds to penicillin-binding proteins (PBPs) on bacterial cell wall.
2Inhibition of transpeptidase enzymes prevents cross-linking of peptidoglycan chains.
3Autolytic enzymes are activated, leading to cell lysis and death.

๐Ÿ’ก How to Take aarbact 4gm/0.5gm injection

Follow your doctor's prescription exactly.

Dosage Timeline

๐ŸŒ… Morning โœ… โ˜€๏ธ Afternoon โŒ ๐ŸŒ† Evening โœ… ๐ŸŒ™ Night โŒ

โš ๏ธ Side Effects of aarbact 4gm/0.5gm injection

โœ… Common Side Effects

  • Diarrhea
  • Nausea
  • Vomiting
  • Headache
  • Insomnia
  • Rash

๐Ÿšจ Serious Side Effects

  • Anaphylaxis
  • Stevens-Johnson syndrome
  • Clostridioides difficile diarrhea
  • Acute renal failure
  • Hepatitis

โš ๏ธ Rare Side Effects

  • Agranulocytosis
  • Hemolytic anemia
  • Seizures
  • Pseudomembranous colitis

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Warfarin Major Increased bleeding risk
Methotrexate Moderate Increased methotrexate toxicity
Probenecid Moderate Reduced renal excretion of piperacillin

๐Ÿšจ Major Interactions

  • Warfarin
  • Methotrexate
  • Vecuronium
  • Probenecid

โšก Moderate Interactions

  • Oral contraceptives
  • Cyclosporine
  • Tacrolimus

โ„น๏ธ Minor Interactions

  • Heparin
  • NSAIDs

๐Ÿท Alcohol Interaction

No direct interaction, but alcohol may increase side effects like nausea.

๐Ÿ›ก๏ธ Safety & Warnings

Liver
Low
Kidney
Low
Heart
Low
Pregnancy
Category B

๐Ÿšซ Contraindications

Hypersensitivity to penicillins, cephalosporins, or beta-lactamase inhibitors.

๐Ÿ“Š Monitoring Parameters

Renal function, hepatic function, CBC, signs of hypersensitivity, bleeding, superinfection.

๐Ÿคฑ Lactation Safety

Excreted in breast milk in low amounts; use with caution.

๐Ÿ’Š Overdose Management

Supportive care; hemodialysis may enhance elimination.

โฐ Missed Dose

Administer as soon as possible; do not double dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jun 28, 2026

๐Ÿ”— View Profile

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