Targofloxin

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Medically reviewed

Marina Burgos

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 Targofloxin

Property Description
Active ingredient Levofloxacin
Form Tablet, Oral Solution, Solution for Injection
Pharmacological class Fluoroquinolone Antibiotic (Third-Generation)
Common use Systemic treatment of Bacterial Infections
Origin Synthetic

Targofloxin is a prescription-only medicine classified as a systemic antibiotic that is utilized to treat a wide variety of bacterial infections throughout the body. The medication belongs to the third-generation fluoroquinolone class, a potent group of chemically synthesized antimicrobial agents. The drug is primarily positioned for use in situations requiring treatment across a broad spectrum of typical pathogens, such as managing a recognized case of community-acquired bacterial pneumonia.

Identity and Classification: A Potent Levofloxacin Agent

The drug’s sole active ingredient is Levofloxacin, which is the purified L-isomer of the older compound Ofloxacin, a feature clinically recognized for enhancing activity against common respiratory and urinary tract bacteria. This stereochemical purity contributes to its pharmacological profile. Levofloxacin is a broad-spectrum antimicrobial agent with therapeutic action against numerous Gram-positive and Gram-negative pathogens. This substance is commonly marketed under several trade names globally, confirming its wide medical recognition as an effective component within the antibiotic arsenal.

Composition and Mechanism: Targeting Bacterial DNA

Targofloxin is prepared for systemic administration and is available in multiple pharmaceutical preparations, including the oral film-coated tablet, oral solution, and a sterile solution for intravenous injection. The drug functions as a bactericidal agent, meaning its primary role is to directly kill the bacteria causing the infection. Fluoroquinolones like Levofloxacin rapidly disrupt the bacteria's essential processes, preventing replication and ensuring the elimination of the pathogen. Therefore, the medication provides robust bacterial clearance necessary for resolving systemic illnesses.

Regulatory References

  1. NIH MedlinePlus Levofloxacin
  2. MedlinePlus: Levofloxacin
  3. NIH StatPearls: Levofloxacin
  4. NIH StatPearls: Fluoroquinolones

What side effects are possible with Targofloxin?

Official Safety Profile and Adverse Reactions

The safety profile of Targofloxin, which contains the active ingredient Levofloxacin, is defined by regulatory bodies through specific frequency classifications and system-organ class groupings. The most Common adverse reactions documented in official labeling include nausea, headache, diarrhea, insomnia, constipation, and dizziness.

Serious Adverse Reactions and Safety Constraints

The regulatory profile identifies a class of serious adverse reactions that are described as potentially disabling and, in some cases, irreversible. These reactions involve multiple body systems and may occur rapidly, sometimes even after the first dose. Serious adverse reactions documented in official sources include tendinitis and tendon rupture, persistent peripheral neuropathy (pain, burning, numbness), and significant Central Nervous System effects (e.g., seizures, severe psychiatric reactions).

Other clinically significant safety concerns listed in regulatory documents involve the cardiovascular system (e.g., QT interval prolongation and rare cases of aortic aneurysm or dissection), metabolic disturbances (e.g., severe hypoglycemia), and severe allergic responses (hypersensitivity reactions).

Population-Specific Safety Considerations

The official labeling notes specific safety considerations for certain populations. The risk of tendon disorders and severe hypoglycemia is increased in older adults (60 years and older). Targofloxin is generally contraindicated or avoided in pediatric patients due to the documented risk of musculoskeletal disorders. Additionally, the risk of tendon issues is significantly increased when this medicine is used concurrently with corticosteroids, a high-level safety constraint listed in official documentation.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documentation for Targofloxin (Levofloxacin) describes documented manifestations of overdose, which include Central Nervous System (CNS) effects such as convulsions, tremors, disorientation, and dizziness, often accompanied by nausea and vomiting.

Required Emergency Actions

An acute overdose situation or the occurrence of severe toxicity requires the immediate seeking of emergency medical attention. Regulators mandate that the medication must be stopped at once if symptoms such as tendon pain, signs of nerve damage (peripheral neuropathy), or sudden, severe pain in the chest, back, or stomach (potential signs of aortic damage) occur.

Severe Complications and Management

The drug’s profile carries a documented risk for serious outcomes, including prolongation of the QT interval and potential for torsade de pointes (TdP), necessitating mandatory ECG monitoring in a clinical setting. Since no specific antidote is known, overdose management relies on symptomatic and supportive treatment, with procedural options like gastric emptying being officially described. Older patients and individuals with renal impairment are noted to be at increased risk for complications such as tendon rupture and severe hepatotoxicity.

Therapeutic Uses of Targofloxin

What Targofloxin Treats: Main Uses and Benefits

Targofloxin is commonly used to provide supportive therapeutic benefit and is relevant for managing bacterial infections across several key organ systems, contributing to easing the overall symptom load. It is applied in contexts where symptoms are marked by heightened distress and functional interference.

The medication is considered relevant across therapeutic areas associated with acute or disruptive episodes, including those in the respiratory tract, the urinary tract, and skin and soft tissue infections. It is applied during phases of increased distress or discomfort, supporting patients during difficult episodes by offering symptomatic relief.

Quick Fact: Relief for Systemic Discomfort

Targofloxin's use supports patients during difficult, acute episodes by offering symptomatic relief, particularly for symptoms related to systemic discomfort, such as fever and chills. It may assist with maintaining functional stability when symptoms create noticeable interference with daily routines.

Eligibility and Restrictions for Use

Who Can and Cannot Use Targofloxin?

Eligibility to use Targofloxin (Levofloxacin) is determined by strict rules in official regulatory documents concerning allergies, existing conditions, and age.

Populations Who Must Not Use the Medicine (Contraindicated)

Targofloxin is strictly contraindicated for several specific patient groups:

  • Patients with a known hypersensitivity or allergy to levofloxacin, other quinolone antibacterials, or any component of the medication.
  • Patients with epilepsy.
  • Individuals with a history of tendon disorders (tendinopathy) linked to prior use of any fluoroquinolone antibiotic.
  • Pregnant women and breastfeeding women (EU/UK regulatory ruling).

Age-Group Eligibility and Restrictions

Age Group Eligibility Status (Regulatory Basis)
Adults (≥18 years) Generally approved for indicated infections.
Children/Adolescents Use is contraindicated for general infections (EU/UK). Use is restricted by the FDA to only specific, severe infections (Anthrax, Plague).
Infants (<6 months) Safety and efficacy have not been established.

Conditional Use and Restrictions

Use of Targofloxin requires special caution or dose adjustment in certain populations:

  • Myasthenia Gravis: Use must be avoided due to the potential to exacerbate muscle weakness.
  • Renal Impairment: Patients with reduced kidney function (Creatinine Clearance <50 mL/min) require a dosage adjustment to prevent drug accumulation.
  • Cardiac Risk: Caution is required for patients with known risk factors for QT interval prolongation (e.g., uncorrected hypokalemia, pre-existing heart disease).
  • Select Indications: For uncomplicated urinary tract infection, acute bacterial sinusitis, and acute bacterial exacerbation of chronic bronchitis, use must be reserved for patients who have no alternative treatment options (FDA restriction).

What should I know about interactions with other medicines?

Targofloxin Interactions with other medicines and products

Official regulatory information documents describe several clinically significant interaction patterns for Targofloxin (Levofloxacin) with other substances. Co-administration must be managed based on whether the interaction results in reduced absorption, increased drug exposure, or an increased risk of specific adverse effects (pharmacodynamic risk reinforcement).

Pharmacokinetic and Timing Constraints

Interacting Substance/Class Official Regulatory Description
Multivalent Cation-Containing Products (e.g., Antacids, Iron/Zinc Salts, Sucralfate) Absorption is significantly reduced due to chelation, lowering systemic exposure. Administration of the oral form must be separated by at least 2 hours before or 2 hours after Targofloxin.
Renal Clearance Inhibitors (e.g., Probenecid, Cimetidine) These substances reduce the active ingredient's renal clearance by blocking tubular secretion, leading to increased systemic concentration. This effect is of particular relevance in renally impaired patients.
Food (Meals) The pharmacokinetics are not clinically affected by food, and the oral tablets may be administered without regard to meals.

Pharmacodynamic Risk Reinforcement

Co-administration with drugs known to prolong the QT interval (e.g., Class IA and III antiarrhythmics) must be avoided due to the documented potential for an additive effect on QT prolongation. Combining Targofloxin with systemic corticosteroids increases the risk of tendinitis and tendon rupture; this risk is explicitly noted as being further increased in older patients. Additionally, the co-administration of Antidiabetic Agents or Vitamin K Antagonists requires careful monitoring, as these combinations have been associated with dysregulated blood glucose and increased coagulation test results (PT/INR), respectively, as stated in official labeling.

Mechanism of Action

Targeting Essential Bacterial DNA Enzymes

Targofloxin's active ingredient, Levofloxacin, operates by directly inhibiting two critical bacterial enzymes: DNA Gyrase (Topoisomerase II) and Topoisomerase IV. The drug binds to and stabilizes the transient intermediate complex where these enzymes have cut the DNA strands, functionally trapping them. This interaction leads to the disruption of the pathogen's ability to manage its own genome.


The Bactericidal Cascade

The stabilization of the enzyme-DNA complex leads to the accumulation of irreparable double-strand DNA breaks, which is the core of the mechanistic cascade. This genetic damage completely halts the processes of bacterial DNA replication and chromosome segregation. This irreversible molecular failure results in a bactericidal effect, which is the physiological consequence of the mechanism.


Mechanistic Breadth and Limitations

The drug's ability to engage both DNA Gyrase and Topoisomerase IV defines the scope of its mechanistic activity across bacterial species. The mechanism is limited by bacterial defense pathways, such as genetic mutations in the target enzymes or the activation of efflux pumps, which prevent the establishment of the necessary inhibitory drug concentration.

Dosage and Administration Information

Targofloxin is administered systemically via oral tablets or a sterile solution for intravenous (IV) infusion. The medication is typically prescribed for a finite course, with a standard frequency of once every 24 hours for most adult regimens, which include doses ranging from 250 mg to 750 mg daily, depending on the specific condition being addressed.

Administration and Timing Rules

Administration Constraint Official Rule
Oral Intake Tablets may be taken with or without food.
Chelating Agents Oral forms must be taken at least two hours before or two hours after products containing multivalent cations (e.g., iron, zinc, aluminum- or magnesium-containing antacids) to avoid reduced absorption.
IV Infusion The solution must be administered by slow intravenous infusion only. A 500 mg dose requires a minimum infusion time of 60 minutes; a 750 mg dose requires at least 90 minutes.

Use in Specific Populations

Dose adjustment is mandatory for adult patients with impaired renal function (creatinine clearance CrCl < 50 mL/minute), which involves reducing the dose or extending the dosing interval to prevent drug accumulation. No dose adjustment is required solely for hepatic impairment or age, but renal status must be checked in older adults. When a dose is missed, it should be taken as soon as possible, unless it is near the next scheduled dose, in which case the missed dose should be skipped.

Course Structure

Treatment duration is specific to the condition, ranging from short courses of 3 days (for uncomplicated infections) to extended courses of up to 60 days (for specific post-exposure prophylaxis). Due to the high bioavailability of the oral form, patients often move from IV to the equivalent oral dose in a practice known as sequential therapy.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Targofloxin

This overview describes the types of clinical research and studies that have been conducted for Targofloxin (Levofloxacin), outlining what outcomes were measured and where gaps or limitations still exist in the research record, consistent with reports from scientific and regulatory bodies.


Evidence for Use in Lower Respiratory Tract Infections (Pneumonia and Bronchitis)

Research for lower respiratory tract issues, such as community-acquired pneumonia (CAP) and acute flare-ups of chronic bronchitis, includes Randomized Controlled Trials (RCTs) and systematic reviews. These studies were designed to compare the medication against either a placebo or another standard antibiotic. The studies focused on outcomes measured during acute episodes.

In these trials, the study findings described patterns observed in outcomes such as the rate at which participants achieved an endpoint typically defined by researchers as the assessment of symptoms and signs of infection. Studies also monitored the time to defervescence or other objective measures of patient stability and measured microbiological eradication, a measured outcome related to the absence of the specific bacteria.

What remains uncertain is the full picture of outcomes long-term. Research provides insight into short-term changes, but the evidence provides limited information on the effects related to subsequent respiratory health or how these outcomes persist beyond the immediate follow-up period.


Evidence for Use in Urinary Tract and Prostate Infections

Research has explored the use of Targofloxin for complicated urinary tract infections (cUTI), acute kidney infections (pyelonephritis), and chronic bacterial prostatitis (CBP). For urinary tract infections, the evidence is drawn from Randomized Controlled Trials (RCTs). The main outcomes monitored in these trials included the microbiological eradication rate of the uropathogens (bacteria) and measures of clinical outcomes, where researchers examined the resolution of outcomes related to physical discomfort like fever and dysuria.

What is still uncertain, particularly for chronic bacterial prostatitis, is the defined duration of therapy in different study protocols, as this varies. Furthermore, research provides limited insight into outcomes for patients who have not responded to multiple prior treatments. For all urinary tract conditions, the evidence points to the ongoing challenge of drug resistance, as fluoroquinolone-resistant uropathogens are a recognized area of research concern.

Key Studies & References

  1. MedlinePlus: Levofloxacin (Monograph on Active Ingredient)
  2. NIH StatPearls: Fluoroquinolones (Review of Pharmacological Class and Mechanism)

Frequently Asked Questions (FAQ)

Common questions about Targofloxin (FAQ)


Q: Is it normal to feel slightly nauseous when first starting Targofloxin?

Nausea is described in official regulatory documents as a very common or common adverse reaction, meaning it is one of the effects most frequently reported in clinical studies. The official documents do not specify the exact duration or timing for when this reaction might occur or subside.

Q: What makes Targofloxin different from other similar drugs used for infections?

Official documents describe the active ingredient as the L-isomer of Ofloxacin, which is the feature that contributes to its pharmacological profile and therapeutic activity against specific bacteria. It is classified as a third-generation fluoroquinolone antibiotic, a distinct class of antimicrobial agents.

Q: Are there certain foods or drinks that should be avoided while taking Targofloxin?

The official product information states that the oral tablet may be taken with or without food. However, official guidance advises that the tablet must be separated from products containing multivalent cations, such as antacids or iron supplements, by at least two hours to avoid reduced absorption.

Q: What are the signs of a severe allergic reaction to Targofloxin, as described in official documents?

Regulatory documents describe serious allergic reactions (hypersensitivity) which may include facial or throat swelling, difficulty breathing, shock, and the development of severe skin rash. These signs are documented in official sources as requiring prompt medical review.

Q: Are there any specific liver or kidney conditions that might affect eligibility for Targofloxin?

For patients with impaired kidney function (Creatinine Clearance <50 mL/min), a dose modification is typically needed according to official documents. Official labeling notes that no dose adjustment is typically required solely for impaired liver function.

Q: Do health professionals generally view Targofloxin as a first-line or second-line treatment?

Regulatory agencies in the United States have introduced restrictions for certain uncomplicated infections (e.g., acute bacterial sinusitis). For these specific indications, the drug is stated to be reserved for patients who have no alternative treatment options, which functionally places it as a second-line choice.

Q: Does Targofloxin have any described interactions with dairy products?

Official documents do not typically specify 'dairy products.' They do mandate a separation from multivalent cations (like calcium and magnesium found in dairy) to prevent reduced absorption, but also state the oral tablet can be taken with food. Patients are advised to ensure separation from highly fortified products or supplements containing these cations.

Q: What are the general guidelines for using Targofloxin in older adults?

Use in older adults (typically ge 60 years) requires special consideration due to a higher risk of developing severe tendon disorders and a higher risk of severe blood sugar changes (hypoglycemia). Official guidelines also emphasize monitoring of kidney function in this age group.

Q: Why do official prescribing information documents include warnings about tendon issues with drugs like Targofloxin?

The warning is included because regulatory documents state that use of this drug is associated with tendinitis and tendon rupture and that these effects can be potentially disabling and irreversible. The risk is explicitly noted as being increased by concurrent use of corticosteroids.

Q: Does Targofloxin have a 'Black Box Warning' in the United States, and what does that mean?

Targofloxin carries an FDA Boxed Warning (colloquially called a 'Black Box Warning'). This is the strongest type of warning the FDA requires, designed to draw attention to the serious, potentially disabling, and potentially irreversible adverse reactions that have been documented, such as tendon damage and nerve damage.

Q: Is Targofloxin prescribed for acute infections, chronic infections, or both?

Regulatory documents describe the drug's use for both acute conditions (e.g., community-acquired pneumonia, acute pyelonephritis) and chronic conditions (e.g., chronic bacterial prostatitis), confirming its positioning for both categories of bacterial infections.

Q: What kinds of tests or monitoring are sometimes required while taking Targofloxin?

Official documents describe monitoring requirements for specific patient groups, including renal function testing for dose adjustment, and careful monitoring of coagulation tests (e.g., PT/INR) and blood glucose levels for patients also taking specific interacting medications.

Q: What is the significance of drug resistance in the context of Targofloxin use?

Drug resistance is significant because regulatory documents emphasize that Targofloxin should only be used to treat infections proven or strongly suspected to be caused by susceptible bacteria. Using it when resistance is likely may result in a lack of treatment efficacy.

Q: What is the official description of when to discontinue Targofloxin use?

Official guidance states that the medicine should be immediately discontinued if a patient experiences any sign of a serious adverse reaction, such as tendon pain, nerve symptoms, or any new Central Nervous System symptoms (e.g., seizure or confusion). This is separate from advice to complete the full course of treatment.

Q: What is the current guidance for patients with diabetes taking Targofloxin?

Official documents state that use in diabetic patients requires careful monitoring of blood glucose levels due to the documented risk of both hypoglycemia (low blood sugar) and, less frequently, hyperglycemia (high blood sugar). This risk is increased when taking oral antidiabetic agents or insulin.

Q: Does taking Targofloxin cause light sensitivity or sun sensitivity?

Official documents describe a risk of photosensitivity/phototoxicity reactions, which may be severe. Official product information notes that exposure to natural or artificial sunlight (e.g., tanning beds) should be avoided during treatment and for a period afterward.

Q: Are there any widely known drug-drug interactions with common over-the-counter pain relievers?

Regulatory documents list a known interaction risk with non-steroidal anti-inflammatory drugs (NSAIDs), which includes many common OTC pain relievers. This combination is described as potentially increasing the risk of Central Nervous System stimulation and seizures.

Q: Does Targofloxin affect the ability to drive or operate machinery?

Official labeling includes a warning that Targofloxin may cause side effects such as dizziness, light-headedness, visual disturbances, or confusion, which can impair a patient's ability to drive or operate machinery. Official information notes that activities requiring full mental alertness may be affected.

Q: What types of infections is Targofloxin not intended to treat?

Regulatory documents describe that Targofloxin is not indicated for treating infections caused by viruses (e.g., the common cold) or fungi, as it is an antibacterial agent. Its purpose is limited to treating infections caused by susceptible bacteria.

Q: Why is it important to complete the entire course of treatment with Targofloxin?

The importance of completing the full course is described in official guidance as being necessary to kill all the bacteria causing the infection. Official guidance indicates that stopping treatment early may result in the return of the infection and can contribute to the development of antibiotic-resistant bacteria.

Q: What does the term 'contraindicated' mean in relation to Targofloxin?

In official medical language, contraindicated means that the medication is not to be used in patients who have a specific condition or history, such as a known allergy or a history of tendon problems from similar drugs, because the risk of documented harm is too high.

Q: What is the official guidance on consuming alcohol while undergoing treatment with Targofloxin?

Official regulatory labeling does not typically provide specific guidance or warnings about the consumption of alcohol while taking the medicine. No specific adverse interaction is noted in the main prescribing documents.

Q: How is Targofloxin described as being eliminated from the body?

Regulatory documents describe that the active ingredient is predominantly excreted unchanged in the urine by the kidneys. This process involves both glomerular filtration and tubular secretion, meaning the drug is largely removed from the body by the urinary system.

Q: What should a patient do if they experience an unexpected reaction to Targofloxin?

Regulatory documents specify that the medicine should be stopped immediately and prompt medical attention should be sought if a patient experiences any signs of serious reactions like tendon pain, nerve symptoms, or severe allergic reactions. Patients are also advised to report adverse reactions to the relevant regulatory agency.

Q: Can taking Targofloxin make a person more susceptible to other types of infections, such as fungal infections?

Official labeling includes a warning about the potential for the overgrowth of non-susceptible organisms, which may include fungi, leading to a secondary infection known as a superinfection. This may also result in C. difficile-associated diarrhea.

Q: Is there a generic version of Targofloxin available, or is it only available as a brand-name drug?

The active ingredient of Targofloxin, Levofloxacin, is described in official drug information as being available in both brand-name and generic versions across numerous markets globally, according to public drug registries.

Q: Are there any specific vision-related side effects mentioned in official documentation?

Official documentation lists specific visual side effects, including transient vision loss, visual disturbances, and double vision (diplopia) as having been reported. Official information notes that activities requiring visual alertness may be affected by these side effects.

How should Targofloxin be stored and disposed of?

Storage and Protection Requirements

Official regulatory labeling for Targofloxin (Levofloxacin) mandates specific environmental controls to maintain product stability. The medication must be stored at controlled room temperature, typically between 15 C and 30 C (59 F and 86 F). The product must be protected from freezing, excessive heat, moisture, and direct sunlight.

Packaging and Child Safety

The medicine should be kept in its original container, which must be tightly closed. A critical requirement is to store Targofloxin out of the sight and reach of children and pets at all times.

Disposal Instructions

Expired or unused medicine must be safely discarded. Regulatory guidelines recommend utilizing drug take-back programs as the preferred method for disposal. Unless specifically instructed by the product label, this medication must not be flushed down a toilet or poured down a sink.

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

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