Ofla OZ

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Ofla OZ

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Ofla OZ

Property Description
Active ingredient Ofloxacin, Ornidazole
Form Oral tablet or suspension
Pharmacological class Antibiotic, Antiprotozoal agent
Common purpose Comprehensive anti-infective treatment
Origin Synthetic

What Type of Medicine is the Ofloxacin and Ornidazole Combination?

The Ofloxacin and Ornidazole combination is a synthetic, fixed-dose antimicrobial product used to manage complex infections. It is classified pharmacologically as a dual-action agent, serving simultaneously as an antibiotic through its Ofloxacin component and an antiprotozoal agent via its Ornidazole component. Ofloxacin belongs to the fluoroquinolone class of antibacterials, which inhibit essential bacterial DNA enzymes.

The medicine's second component, Ornidazole, belongs to the nitroimidazole class, a group effective against protozoa and certain anaerobic bacteria, confirming its dual antimicrobial scope. This co-formulation is a strategic design intended to address infections where multiple types of causative organisms, specifically aerobic bacteria and anaerobic or protozoal pathogens, are either suspected or confirmed.

Ofla OZ: Composition and Delivery Form

The medicine is composed of the two internationally recognized active ingredients: Ofloxacin and Ornidazole. This pairing is clinically recognized for its synergistic effect against a wide range of susceptible organisms. The final pharmaceutical product is designed for the oral route of administration, commonly supplied as a tablet or, in alternative preparations, a suspension. As an orally administered synthetic medicine, it relies on pharmaceutical excipients and binders to achieve its stable and consumable dosage form.

General Purpose of this Dual-Action Anti-Infective

The general purpose of the Ofloxacin and Ornidazole combination is to provide comprehensive anti-infective treatment. This combination is intended to offer the benefit of targeting infections caused by both susceptible bacterial pathogens and sensitive protozoal organisms with one prescription. For instance, it is typically used in scenarios where a complex infection may involve both aerobic bacteria and anaerobic organisms simultaneously. This dual capability is particularly relevant for the management of mixed infections, ensuring the therapeutic regimen covers a wider scope of potential microbial causes.

What side effects are possible with Ofla OZ?

Possible side effects and safety information

The official safety profile for the Ofloxacin and Ornidazole combination is structured around adverse reactions classified by frequency and affected body system, strictly based on government regulatory documents. The profile includes risks associated with the fluoroquinolone (Ofloxacin) component.


Frequency and System-Organ Classes

The most common side effects listed in regulatory labeling include nausea, vomiting, diarrhea, headache, dizziness, and insomnia (difficulty sleeping). Reactions such as agitation, visual disturbances, and rash are generally categorized as uncommon.

Adverse effects are grouped by affected physiological systems, known as System-Organ Classes. These include the Gastrointestinal Disorders (e.g., nausea, risk of Clostridium difficile-associated diarrhea), Nervous System Disorders (e.g., headache, seizures, peripheral neuropathy), and Musculoskeletal and Connective Tissue Disorders (e.g., tendinitis, tendon rupture).


Serious Adverse Reactions and Safety Constraints

The regulatory labeling highlights several serious adverse reactions. These include Tendon Rupture and Peripheral Neuropathy, which can be disabling and potentially irreversible, along with severe hypersensitivity reactions and CNS effects such as psychosis. Tendon injuries can occur from within 48 hours of starting treatment up to several months after discontinuation.

Specific patient groups have documented increased risk. Older adults (typically over 60) and patients concurrently using corticosteroids have a higher risk of tendinitis and tendon rupture. Official safety constraints mandate caution in use, particularly in situations where alternative treatment options exist, due to the risks of these serious adverse effects. Additionally, the label advises avoiding unnecessary or prolonged exposure to sunlight due to the risk of photosensitivity.

Overdose and Emergency Response

Overdose and when to seek help

Overdosage with the Ofloxacin and Ornidazole combination may lead to an escalation of documented adverse effects. Official regulatory documents indicate that manifestations may occur with greater severity, primarily affecting the Central Nervous System (CNS) and Gastrointestinal (GI) systems. Severe neurological presentations include convulsions, seizures, toxic psychosis, tremor, and signs of increased intracranial pressure. Other documented symptoms include poor coordination, vertigo, somnolence, and severe nausea and vomiting. Due to the seriousness of these CNS events, immediate medical attention is required upon any suspicion of overdosage.

Feature Official Regulatory Guidance
Required Action Seek immediate medical attention and discontinue the drug.
Specific Antidote No specific antidote is known for the Ornidazole component.
Management Focus Symptomatic and supportive treatment.

Management for overdosage is defined by supportive measures. For instance, specific procedural steps such as administration of diazepam are recommended if seizures occur. Given the cardiovascular profile of the active components, official guidance specifies that ECG monitoring should be undertaken due to the potential risk of QT interval prolongation. Gastric emptying procedures may also be considered in the overall supportive approach.

Therapeutic Uses of Ofla OZ

What Ofla OZ Treats: Main Uses and Benefits

This medication is generally used in situations involving certain distressing symptoms and helps address symptom clusters that may become intense or disruptive in situations where patients experience symptoms associated with mixed infection. The combination is commonly used across conditions presenting with acute episodes. The medication is applied in addressing conditions presenting with acute episodes, which may include symptoms related to acute diarrhea, dysentery, genitourinary discomfort, and certain symptomatic infections of the respiratory tract, skin, and soft tissues. This supportive relief generally contributes to improved comfort during periods of heightened symptoms and assists with maintaining functional stability.

Ofla OZ is also relevant in areas where short-term symptom management is appropriate for conditions presenting with systemic or localized discomfort. This approach is useful in scenarios where symptoms escalate temporarily, in contexts involving heightened systemic burden and symptoms associated with mixed infection.

“The treatment is commonly used in settings marked by temporary physiological imbalance and applied in clinical settings that involve acute or unstable symptom patterns, supporting patients through difficult episodes.”

This medicine is applied in scenarios where additional management of discomfort is required, helping to ease the overall symptom burden and support general well-being.

Quick Fact: Relief for Intense Gastrointestinal Distress

Regulatory References

  1. Rwanda FDA Summary of Product Characteristics for Ofloxacin & Ornidazole Tablets

Eligibility and Restrictions for Use

This profile summarizes the official population eligibility and non-eligibility information for the Ofloxacin and Ornidazole combination (Ofla OZ), strictly based on governmental regulatory documents.


Eligibility Scope

Eligibility Status
Allowed Population: Adults (( geq 18 ) years) with no contraindications.
Contraindicated Groups: Children and adolescents (( lt 18 ) years), pregnant and breastfeeding women.

Official Non-Eligibility and Restriction Rules

The medicine is contraindicated for patients with known hypersensitivity to Ofloxacin, Ornidazole, or any agent in the quinolone or nitroimidazole drug classes. Absolute non-eligibility also applies to individuals with a history of epilepsy or a lowered seizure threshold, and those with a past history of tendon disorders related to fluoroquinolones. Specific genetic or organ conditions, such as G6PD deficiency, are listed as contraindications in regulatory summaries.

Conditional use is required for populations with underlying conditions. This includes older adults (( geq 60 ) years) due to increased risk of tendon issues, and patients with impaired renal or hepatic function, where use necessitates official monitoring or adjustment. Caution is also required for diabetic patients and those with risk factors for QT interval prolongation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Ofla OZ is defined by separate interaction patterns for Ofloxacin and Ornidazole, which govern use restrictions.

Category Official Interaction Constraint
Contraindicated Combinations Co-administration is restricted with drugs that prolong the QTc interval (e.g., Thioridazine, Cisapride) due to the documented risk of additive QTc prolongation. Alcohol consumption is prohibited during treatment and for a period after discontinuation.
Exposure-Altering Interactions Antacids (containing Aluminum, Magnesium, or Calcium), Sucralfate, and supplements containing Iron or Zinc must be separated by at least 2 hours from Ofloxacin administration to prevent a documented decrease in absorption.
Pharmacodynamic Risk Co-use of Ofloxacin with Corticosteroids is associated with an increased, labeled risk of tendinitis and tendon rupture, particularly in elderly patients (over 60).
Metabolic Modification Cimetidine is documented to decrease the plasma clearance of Ornidazole, while Phenobarbital can reduce its half-life. This dictates that the Ornidazole dosing interval should be doubled in patients with severe hepatic impairment.

Official interaction summary: The combination also potentiates the effect of Coumarin-type oral anticoagulants (e.g., Warfarin), officially leading to an increase in PT/INR values. Co-administration of Ornidazole with Disulfiram is formally prohibited due to the risk of acute confusion. The profile emphasizes constraints related to chelation-mediated reduced exposure, additive pharmacodynamic risk, and metabolic clearance modification as defined by regulatory documents.

Mechanism of Action

How Ofla OZ Works: Dual Mechanism of Action

The anti-infective action of Ofla OZ is defined by the complementary pharmacodynamics of its two components, simultaneously targeting critical genetic processes in distinct microbial domains.

Targeting Aerobic Pathogens: Inhibition of DNA Replication

Ofloxacin acts as a cidal agent by specifically inhibiting two essential bacterial enzymes: DNA Gyrase (Topoisomerase II) and Topoisomerase IV. By stabilizing the DNA strands after they are cleaved by the enzymes, the drug prevents the completion of replication and transcription. This mechanistic failure causes irreparable damage to the microbial genome, resulting in the loss of cellular integrity and subsequent cell death of susceptible aerobic bacteria. This mechanism results in the bactericidal elimination of the pathogen, which is distinct from bacteriostatic mechanisms.

Targeting Anaerobic/Protozoal Pathogens: Free Radical DNA Destruction

Ornidazole is a cidal agent activated exclusively within the low-oxygen, low-redox potential environments of susceptible anaerobic bacteria and protozoa. Microbial enzymes reduce the Ornidazole molecule, generating highly reactive nitro radical intermediates. These unstable free radicals interact with the microbial DNA, causing widespread physical fragmentation and strand breakage of the helical structure. This physical destruction of the genetic material halts nucleic acid synthesis and leads to the death of susceptible anaerobic pathogens. This mechanism addresses pathogens that are not primary targets of the Ofloxacin mechanism, resulting in a broad-spectrum cidal action.

Dosage and Administration Information

How Ofla OZ is Used: Administration Guidelines

This section outlines the usage instructions for the Ofloxacin 200 mg and Ornidazole 500 mg fixed-dose combination.

Standard Dosing and Administration

Instruction Detail
Route of Administration Oral ingestion (swallowing the tablet).
Standard Adult Dose One tablet (Ofloxacin 200 mg / Ornidazole 500 mg) per dose.
Dosing Frequency Typically twice daily, spaced approximately 12 hours apart.
Course Duration The length of therapy generally ranges from 5 to 10 days, as specified by the prescribing physician.

Contextual Use Instructions

Condition Instruction
Intake with Food The tablet may be taken with or without food. Taking it with food may help reduce potential gastrointestinal discomfort.
Tablet Handling The tablet must be swallowed whole and should not be crushed, chewed, or broken.
Drug-Mineral Timing Intake must be separated by at least two hours from the oral consumption of Mg/Al antacids, sucralfate, iron preparations, or zinc supplements, as these can reduce the absorption of Ofloxacin.

Population-Specific Adjustments

Dosage alterations are required for specific patient groups:

  • Renal Impairment: Dose adjustments or extended intervals are necessary when Creatinine Clearance is le 50 mL/min.
  • Hepatic Impairment: The dosing interval should be doubled in patients with severe liver function impairment due to Ornidazole clearance.
  • Pediatric Use: The fixed-dose tablet is generally not recommended for children and growing adolescents.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Ofla OZ

Evidence for Use in Mixed Gastrointestinal Infections (Diarrhea/Dysentery)

The Ofla OZ combination was evaluated in research exploring symptoms in patients with mixed bacterial and parasitic infections. Researchers examined the combination in short-term comparative studies and randomized controlled trials (RCTs). These studies monitored outcomes related to physiological strain, such as changes in symptom intensity (e.g., frequency of diarrhea and abdominal discomfort) and microbiological eradication rates.

Studies conducted during periods of increased symptom activity reported measurements of clinical response and measured changes in pathogen presence in adult populations with suspected mixed infections. Research highlights changes measured during the study period, contributing to understanding symptom patterns over the short follow-up timeframe. Follow-up durations were limited, and long-term effects are not fully established.

Evidence for Use in Urinary Tract Infections (UTIs)

The main components of Ofla OZ were evaluated in research settings examining symptoms associated with urinary tract infections (UTIs). The studies monitored outcomes related to physical discomfort, such as changes in UTI symptom intensity, and tracked microbiological clearance rates in urine samples. Findings indicate patterns related to clinical response and measured changes in pathogen presence shortly after the study interval.

Certainty remains low regarding the distinct role of Ornidazole in typical, uncomplicated UTIs where a parasitic cause is not a primary concern. Comparative evidence against standard single-agent treatments is limited for specific subgroups. Long-term effects, such as the likelihood of infection recurrence, are not fully established.

Evidence in Special Populations and Uncertainties

Research was observed in various populations, including older adults, but evidence is limited for certain groups, including pregnant-related populations and very young children. Data for certain groups remain insufficient. Comparative evidence against certain alternative treatments is limited for some indications.

Data are still emerging, and certainty remains low regarding responses in all special populations. Studies help show what has been observed so far, but there are areas where more data are needed to establish clearer patterns.

Key Studies & References Clinical Practice Guideline for the Use of Fluoroquinolones in Uncomplicated and Complicated Urinary Tract Infections (UTIs)

Frequently Asked Questions (FAQ)

Common questions about Ofla OZ (FAQ)


Q: How is Ofla OZ different from just using Ofloxacin alone?

A: Ofla OZ is a fixed-dose combination medicine containing Ofloxacin and Ornidazole. Official product information indicates this dual composition is designed to target a broader range of infections by acting against both aerobic bacteria (via Ofloxacin) and specific anaerobic bacteria or protozoa (via Ornidazole), offering a wider scope of coverage than Ofloxacin alone.


Q: Is there a generic version of Ofla OZ available?

A: Yes. The fixed-dose combination of Ofloxacin and Ornidazole is documented in official regulatory listings to be available from various manufacturers. This means that the medicine may be marketed under multiple generic or trade names.


Q: How long does Ofla OZ typically take to start working?

A: Official product information notes the active ingredients are absorbed into the body. While individual response varies, the Ornidazole component typically reaches its peak concentration in the blood within a few hours. Official studies have observed changes in symptoms over the study period, which may begin within the first few days of use.


Q: Can Ofla OZ affect my ability to drive?

A: Official safety information indicates the medicine may cause effects on the Central Nervous System (CNS), such as dizziness or light-headedness. Official advice for the drug class recommends caution and avoiding tasks like driving if CNS effects are experienced.


Q: Does Ofla OZ have any known interactions with birth control pills?

A: General guidance from regulatory sources for the classes of drugs in Ofla OZ (fluoroquinolones and nitroimidazoles) indicates that they are generally not known to significantly reduce the effectiveness of combined hormonal contraceptives (such as birth control pills). Official product labels contain the most specific details regarding drug interactions.


Q: Is Ofla OZ ever prescribed for dental infections?

A: Yes, regulatory indication listings in some regions document the use of the Ofloxacin and Ornidazole combination for treating certain dental infections. This is generally for cases that may involve both aerobic and anaerobic pathogens.


Q: Is Ofla OZ the same as another drug I've heard of with a similar name?

A: The name 'Ofla OZ' is one specific brand name for the medicine. This product contains the two active ingredients, Ofloxacin and Ornidazole. The same drug formulation may be marketed in different regions or by different companies under various other brand names or generic names.


Q: How long does Ofla OZ stay in your system after the last dose?

A: The time the medicine remains in the system is related to the drug's half-life. Official data show that the half-life for Ofloxacin is around 9 hours, and for Ornidazole, it is roughly 13 hours. The majority of the dose is typically eliminated from the body within the first few days after the final administration.


Q: Does Ofla OZ interact with over-the-counter pain relievers like ibuprofen?

A: Official information for the Ofloxacin component indicates that taking it with certain over-the-counter pain relievers, specifically Nonsteroidal Anti-inflammatory Drugs (NSAIDs) such as ibuprofen, may increase the risk of certain Central Nervous System (CNS) side effects, including a potential for seizures.


Q: Is a metallic taste in the mouth a known side effect of Ofla OZ?

A: Yes, the Ornidazole component is documented in safety profiles to potentially cause a temporary metallic taste in the mouth. This is a recognized side effect that some users may experience.


Q: What happens if Ofla OZ doesn't seem to be working?

A: If the medicine does not appear to be effective, official guidance indicates this may suggest a need for re-evaluation of the infection. This could be due to issues like microbial resistance, where the pathogen is no longer susceptible to the medicine, or a possible incorrect pathogen diagnosis.


Q: Can Ofla OZ interfere with sleep?

A: Yes, regulatory safety profiles list insomnia (difficulty falling or staying asleep) as a common side effect associated with the use of this medicine. This is part of the recognized Central Nervous System (CNS) effects.


Q: Is it possible to develop a resistance to Ofla OZ over time?

A: Yes, as is the case with all antimicrobial products, official statements on public health confirm that the use of Ofla OZ can contribute to the development of drug-resistant microorganisms over time. This process is broadly known as Antimicrobial Resistance (AMR).


Q: How frequently does Ofla OZ cause serious side effects, according to official data?

A: While specific frequency numbers are often not provided in general patient information, regulatory agencies highlight that serious adverse reactions, such as tendon rupture or peripheral neuropathy, are severe risks. The FDA requires a Boxed Warning for the fluoroquinolone component to highlight the potential for these rare but potentially disabling and irreversible effects.


Q: Is Ofla OZ a medication that requires a special warning label?

A: Yes, because the Ofloxacin component is a fluoroquinolone, this medicine falls under a class of drugs that the FDA requires to carry a Boxed Warning (formerly Black Box Warning). This is used to alert both patients and prescribers to the risk of specific serious adverse effects.


Q: What happens if I accidentally miss a dose of Ofla OZ?

A: The official guidance often advises taking the missed dose as soon as it is remembered. However, if it is very close to the time for the next scheduled dose, the missed dose should be skipped. Patients are officially advised that a double dose should not be taken to compensate for a missed dose.


Q: Is Ofla OZ considered a strong antibiotic?

A: Regulatory documents describe this medicine as a dual-action antimicrobial. It acts by a cidal mechanism, meaning it causes the death of susceptible pathogens. This mechanism is defined as highly effective against susceptible aerobic bacteria and protozoal/anaerobic pathogens.


Q: Does Ofla OZ treat all types of infections?

A: No. Official documents clarify that the medicine is targeted for infections caused by organisms that are susceptible to the Ofloxacin and Ornidazole components. It is specifically designed to cover certain aerobic bacteria and anaerobic/protozoal organisms and is not intended for all infection types or causes.


Q: Is Ofla OZ safe to use if I have kidney issues?

A: Official labeling dictates that patients with impaired kidney function often require dose adjustments or changes to the dosing interval. Such circumstances require the prescribing professional to determine the appropriate interval or adjustment, particularly when creatinine clearance is le 50 mL/min.


Q: Is it normal to feel dizzy or lightheaded while on Ofla OZ?

A: Yes, official safety information lists dizziness and headache as some of the most common side effects reported. Dizziness is one of the recognized Central Nervous System (CNS) effects associated with the Ofloxacin component.


Q: Does Ofla OZ cause drowsiness?

A: The official safety profile commonly lists insomnia (difficulty sleeping) rather than drowsiness. However, because other CNS effects, such as dizziness, are noted, caution is advised when performing tasks that require full mental alertness.


Q: What type of research supports the use of Ofla OZ for its listed conditions?

A: Official research evidence includes short-term comparative studies and Randomized Controlled Trials (RCTs). These studies monitor outcomes such as changes in symptom intensity and tracking microbiological clearance rates in specific infection types, such as mixed gastrointestinal and urinary tract infections.


Q: Are mood changes or anxiety listed as possible side effects of Ofla OZ?

A: Yes, the Ofloxacin component is associated with potential Central Nervous System (CNS) effects. Official safety documents have included reports of symptoms such as feeling anxious, confusion, depression, and other unusual thoughts or behaviors.


Q: What is the typical age range of people prescribed Ofla OZ?

A: Official non-eligibility rules state that the medicine is generally not recommended for children and growing adolescents (lt 18 years). Therefore, it is officially intended for use only in adults who meet the eligibility criteria and have no contraindications.


Q: What kind of tests are usually done before prescribing Ofla OZ?

A: Prescribing professionals must assess patient eligibility against the official contraindications, checking for a history of tendon disorders or an increased seizure threshold risk. Additionally, monitoring of factors like renal and hepatic function is noted as necessary in certain patient groups.


Q: Is it common for doctors to switch to Ofla OZ after another drug fails?

A: Official documentation notes that Ofla OZ provides a dual-action strategy against both bacteria and protozoa/anaerobes. It is noted as being applicable for complex or mixed infections where broader coverage for the range of suspected pathogens may be needed.

How should Ofla OZ be stored and disposed of?

How to Store and Dispose of Ofla OZ

Storage Requirements

Official regulatory labeling dictates that Ofla OZ must be stored at controlled room temperature, typically maintained between 15 C and 30 C. It is mandatory to keep the medicine from freezing.

To ensure product stability, the tablets must be protected from light and moisture and stored in a closed container. For safety, the product must always be stored out of the sight and reach of children.

Condition Requirement
Temperature Not exceeding 30 C
Environmental Protect from light and moisture
Safety Keep out of reach of children

Disposal Instructions

Disposal of unused or expired Ofla OZ must follow local regulations. The preferred disposal method is utilizing a drug take-back program. If a take-back program is unavailable, the medicine should be mixed with an undesirable substance (such as coffee grounds or dirt), sealed in a container, and placed in the household trash. The product is not on the FDA's flush list and should not be disposed of via the toilet or wastewater.

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

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