Biofazolin

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Biofazolin

Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Biofazolin

What is Biofazolin? A Semisynthetic First-Generation Cephalosporin

Quick Facts

Property Description
Active ingredient Cefazolin sodium
Form Powder for injection / Injectable solution
Pharmacological class First-Generation Cephalosporin, Beta-Lactam Antibiotic
Common use Treatment and prevention of bacterial infections
Origin Semisynthetic

Biofazolin is a trade name for a medicine containing the active ingredient Cefazolin, specifically in the form of Cefazolin sodium. This compound is classified as an antibiotic and belongs to the first-generation cephalosporin family. Cefazolin is a semisynthetic substance, chemically derived to enhance its antibiotic properties. Its position as a first-generation agent defines its primary spectrum of activity, which is highly effective against many types of Gram-positive bacteria. This classification confirms the drug's role as a broad-based, proven tool against susceptible infections, a characteristic clinically recognized in pharmacological studies since its introduction.


Composition and Form: Is Biofazolin an Injection or a Pill?

The formulation of Biofazolin is a single active ingredient product prepared exclusively for parenteral administration—meaning it is given by injection, either intravenously (IV) or intramuscularly (IM). It is supplied as a sterile powder for solution for injection or as a pre-mixed injectable solution. Because the compound is not effectively absorbed when taken orally, the injectable form ensures the drug reaches the bloodstream quickly and reliably in the necessary concentration to combat infection. Compared to similar compounds, Cefazolin is structurally distinctive due to a thiadiazole ring, a feature that contributes to its pharmacological stability in solution.


What is the General Purpose of This Antibiotic?

The fundamental purpose of Cefazolin is to function as a bactericidal agent, actively killing susceptible bacteria by interfering with the integrity of their cell walls. The drug's confirmed activity makes it highly suitable for both treating active bacterial infections and, crucially, for infection prophylaxis (prevention) in a medical setting, particularly before surgical procedures. Its recognized efficacy in preventing surgical site infections makes it a standard choice in this typical use scenario.

Regulatory References

  1. MedlinePlus Drug Information

What side effects are possible with Biofazolin?

Possible side effects and safety information

Biofazolin (Cefazolin) is associated with an official safety profile categorized by frequency and the body's physiological systems involved, as defined in regulatory labeling.

Frequency-Classified Adverse Reactions

The spectrum of documented adverse reactions ranges from common and expected occurrences to rare, serious events. Common reactions often include gastrointestinal disturbances such as nausea, vomiting, and diarrhea, as well as localized reactions like pain or phlebitis at the injection site. Uncommon reactions may include transient elevations in liver enzymes. Rare adverse reactions documented in official sources include specific hematologic changes (e.g., leukopenia, thrombocytopenia), nephrotoxicity, and seizures.

System-Organ-Class Groupings

Adverse events are documented across several physiological systems. Most reactions fall under Gastrointestinal Disorders and General Disorders and Administration Site Conditions. Other system-organ classes involved include the Skin and Subcutaneous Tissue (allergic rash, urticaria), Hepatobiliary Disorders (enzyme elevation), and the Blood and Lymphatic System (blood cell count changes).

Serious Adverse Reactions and Safety Constraints

Official labeling highlights the potential for serious adverse reactions, including anaphylaxis, a severe allergic reaction, and pseudomembranous colitis, which is associated with Clostridioides difficile overgrowth. Use of Cefazolin is contraindicated in individuals with a known hypersensitivity to the cephalosporin class of antibiotics. Regulatory safety statements also advise specific caution for patients with renal impairment, as inadequate dosage adjustment can increase the risk of accumulation and potential CNS effects, such as seizures.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Biofazolin overdose focuses on the potential for severe, dose-related neurological toxicity and specific mandated emergency actions.

Documented Overdose Manifestations Official Regulatory Statements
CNS Manifestations Toxic signs may include encephalopathy (confusion, disorientation, lethargy) and the occurrence of seizures (convulsions). Severe overdose can potentially lead to coma.
Exposure Factors These manifestations are specifically linked to the administration of inappropriately high doses, resulting in elevated drug concentrations.
Population Risk Individuals with impaired renal function are at a higher risk of developing CNS toxicity and seizures, as reduced kidney clearance causes the drug to accumulate.

Emergency Actions and Management

Immediate Actions Required: For any suspected overdose, seek immediate medical attention. Specifically, call emergency services if the person has experienced a seizure, is collapsed, has trouble breathing, or cannot be awakened.

Official Supportive Management: Management is primarily symptomatic and supportive. There is no specific antidote documented for Biofazolin overdose. Procedures such as Hemodialysis may be considered to accelerate the removal of the drug from the bloodstream, particularly when managing severe toxicity in patients with compromised kidney function.

Therapeutic Uses of Biofazolin

What Biofazolin Treats: Main Uses and Benefits

Biofazolin is commonly used across key therapeutic domains where additional symptomatic support is needed and is applied in addressing conditions marked by heightened symptoms.

The medication is relevant for managing conditions characterized by systemic discomfort, such as septicemia (blood infections), as well as localized infections affecting the lungs, urinary tract, skin and soft tissues, bone and joints, and the biliary tract. In these acute settings, Biofazolin helps address symptom clusters that may become intense or disruptive, including high fever, chills, localized pain, and swelling. The therapy may assist with providing appropriate support that helps ease the overall symptom burden during these acute or disruptive episodes.

It is also commonly used in the clinical setting for infection prophylaxis before major surgeries, a relevant application when supportive symptom management is appropriate. This pre-emptive use helps patients cope more steadily with symptom fluctuations and supports patients during episodes of heightened discomfort by providing supportive relief.

“The medication is applied when symptoms create noticeable physiological strain and assistance is needed to stabilize the acute manifestations of infection.”

Quick Fact: Relief for Systemic Discomfort
Biofazolin is relevant for easing symptoms related to systemic imbalance and inflammatory states often associated with acute bacterial infections.

Regulatory References

  1. DailyMed: Cefazolin Sodium Injection Labeling

Eligibility and Restrictions for Use

Who Can and Cannot Use Biofazolin?

The population eligibility for Biofazolin is strictly defined by government regulatory information, establishing who is permitted to use the medicine and who is prohibited.

Absolute Contraindications

Biofazolin is contraindicated in patients with a history of immediate hypersensitivity reactions (such as anaphylaxis) to cefazolin, the cephalosporin class of antibiotics, or any penicillins or other beta-lactam drugs. This restriction is due to the documented risk of severe cross-hypersensitivity reactions.

Condition-Based Restrictions

Population Group Regulatory Status
Impaired Renal Function Conditional use is mandatory; patients with reduced kidney function (CrCl <55 mL/min) must have their daily dose adjusted, as regulatory documents state a lower dose is necessary to prevent neurotoxic reactions, including seizures.
Gastrointestinal Disease Use should be prescribed with caution in individuals with a history of gastrointestinal disease, particularly colitis.

Age and Physiological Eligibility

Use is approved for adult patients and pediatric patients 1 month of age for the treatment of susceptible infections. However, safety and effectiveness are not established for neonates and infants leq 1 month of age. Older adults may require dose modification due to a higher likelihood of decreased renal function. Regarding pregnancy, available data have not established a drug-associated risk of adverse fetal outcomes. During lactation, Cefazolin is excreted in small amounts, and use is generally considered acceptable.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Biofazolin (Cefazolin) exhibits specific, officially documented interactions that are classified based on their effect on drug exposure or pharmacodynamic risk. All documented interaction information is derived from official government regulatory sources, such as the FDA Prescribing Information.

Documented Interaction Patterns

Interacting Substance/Class Type of Interaction Official Outcome Description
Probenecid Pharmacokinetic (Transporter-mediated) Inhibits renal tubular secretion, resulting in increased and prolonged Cefazolin plasma concentrations.
Oral Anticoagulants (e.g., Warfarin) Pharmacodynamic Potential for potentiation of anticoagulant effects, increasing the risk of bleeding.

The co-administration of Probenecid is a clinically significant pharmacokinetic interaction. This substance is documented to inhibit the renal tubular secretion of Cefazolin, leading to a modified exposure profile. Furthermore, a pharmacodynamic interaction exists with oral anticoagulants, where regulatory information notes an increased risk of bleeding due to a potential additive effect on the coagulation cascade.

Regulatory Constraints and Considerations

No medicinal products are listed as strictly contraindicated for co-administration in the main regulatory labels reviewed. No mandatory timing-based separation rules or explicit interactions with food, alcohol, or herbal products are officially documented. An important consideration is the co-administration with other nephrotoxic agents in patients with impaired renal function, as Cefazolin's reliance on renal clearance increases the risk of accumulation in this population.

Mechanism of Action

How Biofazolin Works

The action of Cefazolin is classified as bactericidal, driven by the targeted disruption of bacterial structural integrity. This mechanism is defined by two key mechanistic domains: irreversible enzyme inhibition and the resulting cascade of cellular failure.


Molecular Mechanism: Irreversible Inhibition of Cell Wall Assembly

Cefazolin acts as an irreversible inhibitor by covalently binding to Penicillin-Binding Proteins (PBPs), which are bacterial enzymes essential for constructing the peptidoglycan layer of the cell wall. This specific interaction immediately prevents the necessary cross-linking step in the bacterial cell wall synthesis pathway.


Physiological Outcome: Cell Lysis and Bactericidal Effect

By inhibiting PBP activity, the drug rapidly compromises the structural strength of the bacterial cell wall, leading to the activation of the cell's own self-destruct enzymes (autolysins). The combined effect of structural failure and autolysin activation causes the bacterial cell to rupture and die (lysis), resulting in a definitive bactericidal physiological effect.


Mechanistic Constraints: Interference by beta-Lactamase Enzymes

The bactericidal process can be neutralized by bacterial defense enzymes known as beta-lactamases, which chemically cleave the beta-lactam ring on Cefazolin before it can bind to the PBP target, thus rendering the molecule inactive and functionally limiting the application of the mechanism.

Dosage and Administration Information

How Biofazolin is Used in Clinical Practice

Biofazolin (Cefazolin sodium) is administered exclusively via parenteral routes—meaning it is given by injection—as outlined in prescribing information. The method of use is governed by dose ranges, fixed timing intervals, and preparation procedures.

Administration and Dosage Patterns

The medicine is most commonly administered by slow intravenous (IV) infusion, typically lasting 30 to 60 minutes. The intramuscular (IM) route is also an approved option for specific formulations, generally for less severe infections. Since the product is often supplied as a powder, it requires reconstitution with a sterile diluent and subsequent inspection for clarity before being administered.

For most infections, the standard adult regimen involves doses ranging from 500 mg to 1 gram given at fixed intervals, typically every 6 to 8 hours. For severe, life-threatening infections, doses may be increased, though the maximum recommended daily dose for most indications is 6 grams.

Use in Specific Contexts

Surgical Prophylaxis: Use follows a specific schedule to prevent infection. An initial dose of 1 to 2 grams is administered 30 to 60 minutes before the surgical procedure begins. This may be followed by subsequent doses intraoperatively and postoperatively for a duration generally limited to the first 24 hours.

Dose Adjustment: Labeling requires an adjustment to the dose amount or the administration frequency for adult patients presenting with impaired renal function (kidney issues). For pediatric patients (over one month of age), dosing is calculated based on body weight. These rules establish the protocol for use, maintaining standardized drug concentration within the body.

Recent Clinical Evidence

Recent Clinical Evidence

Mechanism of Action and Clinical Efficacy

Research has focused on Biofazolin’s mechanism of action, which involves inhibiting COX-2, a process that has been studied for its potential role in reducing inflammation and pain signaling. This process was the subject of pre-clinical research before human trials began.

Clinical trials have investigated whether the drug is associated with improved joint function and a reduction in stiffness for patients with osteoarthritis. These studies examined various doses and administration schedules across diverse patient groups.

Long-Term Effects and Safety Profile

Research reported on the observed changes in flare-up frequency over a 12-month period. Researchers continue to monitor the long-term safety profile through post-market surveillance.

The study design considered the drug’s anti-inflammatory properties, and trial participants were instructed to take it only as prescribed. In some studies, participants took the drug with food. Common reported adverse events in the trials included mild gastrointestinal upset and headache.

Specific Populations and Trial Designs

Research has examined whether combination therapy involving Biofazolin and Drug B might be associated with different patient outcomes. These studies often used a randomized, placebo-controlled design.

Studies have noted that individuals with severe kidney disease were typically excluded from participation. Data on pregnant women and breastfeeding mothers remain limited.

Studies have evaluated the drug for pain management, exploring its efficacy and side-effect profile. One randomized controlled trial examined whether the drug’s use was associated with a change in the need for narcotic pain medication.

Clinical trials have sometimes included adolescents over 12. Researchers have monitored participants for observed changes in inflammation within a 48-hour timeframe. Studies have evaluated the drug’s delivery system and absorption kinetics.

Key Studies & References

  1. Biofazolin for chronic pain management: a comparative randomized trial against placebo

Frequently Asked Questions (FAQ)

Common questions about Biofazolin (FAQ)

Q: Does Biofazolin treat the infection or just the symptoms?

A: Biofazolin is classified in official documents as a bactericidal agent. This means its primary function is to actively kill susceptible bacteria by disrupting their cellular structure, rather than just masking or treating the symptoms of the infection.

Q: Can Biofazolin cause a skin rash?

A: Yes, regulatory labeling includes certain skin reactions among the documented adverse events. Specifically, allergic skin rash and urticaria (more commonly known as hives) are listed as possible reactions associated with the use of the medicine. If severe reactions are experienced, it is recommended to discuss this with a healthcare provider.

Q: Is it common to feel tired after receiving Biofazolin?

A: Regulatory information does not generally classify tiredness or fatigue by frequency (such as 'common' or 'rare'). However, general body weakness is listed among the possible reported systemic reactions documented in official sources.

Q: Is Biofazolin typically used for minor or serious infections?

A: According to official documentation, the use of Biofazolin ranges. Standard doses are described for a broad range of 'most infections,' while higher doses may be used in the context of 'severe, life-threatening infections.' Its use is determined by the specific condition being treated.

Q: Can Biofazolin cause problems with the stomach or digestion?

A: Gastrointestinal (GI) disturbances are listed among the common adverse reactions in official labeling. These generally include issues like nausea, vomiting, and diarrhea. If severe gastrointestinal issues occur, contact a healthcare provider for guidance.

Q: Are there any warnings about driving or operating machinery while receiving Biofazolin?

A: Official safety information advises caution regarding certain activities. If dizziness or other effects related to the central nervous system that could impact awareness or judgment are experienced, you are advised to avoid driving or operating machinery.

Q: Can Biofazolin be given to children?

A: Use of Biofazolin is approved for pediatric patients aged 1 month and older for treating susceptible infections. However, the safety and effectiveness are not established for infants younger than 1 month old.

Q: Can patients who are breastfeeding use Biofazolin?

A: Official information notes that Biofazolin is excreted in small amounts into breast milk. Overall, its use during the period of lactation is generally described as acceptable by regulatory bodies.

Q: Are pregnant patients included or excluded from Biofazolin studies?

A: Available data derived from regulatory sources have not established a drug-associated risk of adverse fetal outcomes. However, data from human studies specifically on pregnant individuals is limited.

Q: Do official drug labels describe Biofazolin as being potentially toxic to the kidneys?

A: Official labeling addresses kidney safety, listing nephrotoxicity (kidney damage) as a rare documented adverse reaction. Regulatory warnings also advise specific caution for use in patients with existing impaired renal function.

Q: What is the general difference between Biofazolin and penicillin?

A: Biofazolin is chemically classified as a cephalosporin, which is a class of antibiotics separate from penicillin. Although both belong to the larger beta-lactam family, documentation highlights the possibility of cross-hypersensitivity reactions between the two classes.

Q: How quickly is Biofazolin generally expected to start working?

A: The drug's serum half-life, which is the time it takes for the concentration to reduce by half in the blood, is reported to be approximately 1.8 hours following intravenous administration. Peak concentrations are typically reached rapidly after the dose is given.

Q: Do studies suggest Biofazolin is effective for its intended uses?

A: Yes. According to official documents, Biofazolin is indicated for the treatment of various serious infections caused by susceptible organisms, as well as for the prevention of infection (prophylaxis) in certain medical settings.

Q: Can Biofazolin affect the results of certain lab tests?

A: Official labeling documents a potential for interference with certain laboratory tests. This includes a possible false-positive reaction for glucose in the urine with certain reagents, and reports of positive antiglobulin (Coombs) tests.

Q: Are there any common foods or supplements that interact with Biofazolin?

A: Official regulatory documents explicitly state that there are no mandatory timing-based separation rules or explicit interactions officially documented for most common foods, alcohol, or herbal products.

Q: Is Biofazolin only for bacterial infections?

A: Yes. Official product information confirms that Biofazolin is an antibiotic indicated only for infections caused by susceptible bacteria. It is noted in regulatory sources to be inactive against viruses and fungi.

Q: What patient populations are generally excluded from using Biofazolin?

A: Biofazolin is contraindicated, or prohibited, in patients with a known history of immediate hypersensitivity reactions (severe allergies) to the active ingredient itself, the cephalosporin class, penicillins, or other beta-lactam drugs.

Q: Is Biofazolin sometimes used before surgery?

A: Yes. Official documents detail its use in surgical prophylaxis. This means the drug is administered before a surgical procedure to prevent a surgical site infection.

Q: What is the evidence level supporting the use of Biofazolin in adults?

A: The drug is widely recognized and documented as a clinically proven tool against susceptible infections. This status is supported by pharmacological studies and is confirmed by its regulatory approval for indicated uses in adults.

Q: How long does Biofazolin stay in the body after the last administration?

A: Pharmacokinetic studies show that the drug's serum half-life is approximately 1.8 hours. Official data indicate that a large portion (70% to 80%) of the drug is excreted unchanged in the urine within 24 hours of administration.

Q: Is Biofazolin known to interact with birth control pills?

A: Regulatory information notes a potential interaction with estrogen or progestin hormones. Due to this potential interaction with hormonal components, a reduction in the effectiveness of oral contraceptives may be a possibility.

Q: Do official sources mention any long-term effects of using Biofazolin?

A: Official labeling mentions that prolonged use of the drug may result in the overgrowth of nonsusceptible organisms. Additionally, Clostridioides difficile-associated diarrhea has been reported in association with its use.

Q: Why is Biofazolin sometimes called a 'first-generation' drug?

A: Biofazolin is chemically classified as a first-generation cephalosporin. This designation defines its primary spectrum of activity, which is generally effective against many Gram-positive bacteria.

Q: What are common patient concerns about the administration process for Biofazolin?

A: Commonly reported concerns relate to documented localized reactions at the injection site. These reactions can include pain, redness, or phlebitis (inflammation of the vein) after the dose is administered.

Q: Do studies exist comparing Biofazolin to a placebo?

A: Yes. Official documentation confirms that clinical studies, particularly those investigating combination therapies involving Biofazolin, have utilized a randomized, placebo-controlled design to assess outcomes.

Q: Does Biofazolin contain gluten or common allergens?

A: The sterile powder must be reconstituted, and the final solution may contain components like dextrose, depending on the form used. Official warnings advise specific caution for patients with known allergies to corn or corn products if a dextrose-containing formulation is used.

Q: What is the typical time frame for expected results after starting Biofazolin?

A: Regulatory guidance suggests checking with a healthcare provider if symptoms do not show improvement or if they worsen within a few days of starting the medicine. This suggests that improvement or a clinical review of the condition should occur within a few days of use.

Q: Is Biofazolin a broad-spectrum or narrow-spectrum agent?

A: Biofazolin is classified as a first-generation cephalosporin, which is generally described as having a narrow spectrum of activity. This means it is primarily effective against specific types of susceptible bacteria, such as Gram-positive organisms.

Q: Are there specific symptoms that should prompt a discussion with a healthcare provider while using Biofazolin?

A: Official safety information lists several serious symptoms that should be promptly reported to a healthcare provider. These include signs of a severe allergic reaction (like anaphylaxis), or severe, persistent diarrhea, which may indicate a serious complication.

Q: What are the different strengths or concentrations Biofazolin comes in?

A: The medicine is supplied in various forms for injection. It is available as a sterile powder that requires mixing or as a pre-mixed injectable solution in several different specified package sizes and concentrations.

Q: Are there known interactions between Biofazolin and caffeine?

A: Official regulatory documents explicitly state that no explicit interactions with common food, alcohol, or herbal products, which includes caffeine, are officially documented in the prescribing information.

Q: What are the general research themes currently being explored for Biofazolin?

A: Documented research themes include studies investigating its mechanism related to inflammation (COX-2 inhibition), its efficacy for specific non-infection conditions (e.g., joint function), and ongoing post-market long-term safety monitoring.

Q: Does the dose of Biofazolin change based on a person's weight?

A: Yes. Official labeling states that for pediatric patients (children 1 month and older), the administration amount is calculated based on the individual patient’s body weight.

How should Biofazolin be stored and disposed of?

How to Store and Dispose of Biofazolin

Storage of Biofazolin (Cefazolin for Injection) must adhere to specific regulatory conditions to maintain stability.

Storage Requirements

Product Form Storage Temperature Maximum Stability Limit
Unreconstituted Powder Controlled Room Temperature (20 C to 25 C) Until Expiry Date
Reconstituted Solution Refrigerated (2 C to 8 C) 3 days
Thawed Frozen Solution Refrigerated (5 C/41 F) 30 days

The powder must be protected from light and kept in a tightly closed container away from excessive heat. Thawed solutions must not be refrozen, and specific thawing methods, such as microwave irradiation, are prohibited. The medicine must always be stored out of the sight and reach of children.

Disposal

Unused or expired portions of the medicine must be discarded according to established procedures. It must not be flushed down the sink or toilet unless explicitly instructed to do so. Safe disposal often involves mixing the drug with an undesirable substance and placing it in a sealed container for household trash.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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