Teravox

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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 Teravox

Quick Facts

Property Description
Active Ingredient Levofloxacin
Forms Tablets, Solution for Infusion, Ophthalmic Solution
Pharmacological Class Third-Generation Fluoroquinolone Antibiotic
Common Use (General) Treating Systemic Bacterial Infections
Origin Synthetic (L-isomer of Ofloxacin)

Defining Teravox: A Fluoroquinolone Antibiotic

Teravox is a brand name for a synthetic antibiotic designed for systemic anti-infective use, intended to fight bacterial infections throughout the body. The medication belongs to the third-generation fluoroquinolone class of antibiotics. Its active compound, Levofloxacin, is the purified L-isomer of the older Ofloxacin molecule, a chemical structure clinically recognized for its improved activity against certain common respiratory and urinary tract pathogens compared to earlier agents. This classification positions the medicine as a powerful therapeutic option for managing serious bacterial illnesses, supporting therapeutic efforts where a broad-spectrum, penetrating agent is needed.


Composition, Forms, and General Purpose

The therapeutic action of Teravox is entirely based on its single-ingredient composition: the active ingredient Levofloxacin. The medicine is prepared in several forms to ensure it reaches the necessary site of infection, including tablets for oral administration, a sterile solution for intravenous infusion, and an ophthalmic solution used for localized eye infections. Levofloxacin is bactericidal, highlighting its ability to kill bacteria outright rather than just stopping them from multiplying. This indicates that the medicine has a highly active function to eliminate the bacterial threat. The availability of Levofloxacin in ready-to-use IV solutions is a practical characteristic that facilitates its use in acute care settings, providing rapid systemic delivery. Its fundamental purpose is to actively kill the harmful bacteria by interfering with their DNA processes, ensuring that the patient receives a definitive anti-infective treatment.

What side effects are possible with Teravox?

The safety profile of Teravox (Levofloxacin) is formally classified by government regulatory agencies into categories based on the frequency and system of the body affected. The most frequently documented adverse reactions primarily involve the Gastrointestinal and Nervous Systems.

Documented Adverse Reactions

Side effects are often categorized by how frequently they may appear in clinical use, as documented in official prescribing information.

  • Common Reactions: Officially classified as common are effects such as nausea, headache, diarrhea, insomnia, constipation, and dizziness.
  • Uncommon Reactions: These include additional gastrointestinal issues like abdominal pain and dyspepsia, as well as neurological effects such as tremor and somnolence.

Serious Adverse Reactions and Safety Patterns

Regulatory documentation highlights specific, clinically significant adverse reactions of the fluoroquinolone class that may be disabling and potentially irreversible. These include tendon rupture, peripheral neuropathy, and the potential for aortic aneurysm and dissection. These risks are part of the drug’s official labeling to ensure comprehensive communication of the safety profile.

Safety notes specify that these serious effects may occur as early as the first dose or be delayed up to several months after discontinuation of treatment. Specific populations, such as older adults (typically over 60 years) and patients concurrently taking systemic corticosteroids, are noted in official sources as having an increased risk for tendon rupture and aortic events. Use is generally avoided in patients with a history of myasthenia gravis, due to the potential for muscle weakness exacerbation. These specific classifications and constraints strictly define the medicine’s official risk structure.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory information for Teravox (Levofloxacin) details specific clinical manifestations and mandated emergency actions in the event of an acute overdose. Immediate medical attention must be sought for any suspected overdose.

Documented signs and symptoms primarily involve the Central Nervous System (CNS), including confusion, dizziness, impairment of consciousness, and convulsive seizures. Cardiac risks are also documented, necessitating that ECG monitoring should be undertaken due to the possibility of Prolongation of the QT interval.

Overdose Management

Classification Official Regulatory Statements
Antidote Status No specific antidote exists for Levofloxacin overdose.
Procedural Limits The substance is not efficiently removed by hemodialysis or peritoneal dialysis.
Supportive Care Treatment is symptomatic and consists of general supportive measures, which may include administration of activated charcoal for gastric emptying and antacids for gastric mucosa protection.

These official statements structure the response to an overdose by defining the severe CNS and cardiac risks that require urgent care. Management focuses on supportive measures and observation due to the absence of a specific antidote and the limited effectiveness of procedural drug removal.

Therapeutic Uses of Teravox

What Teravox treats: Main Uses and Benefits


The therapeutic role of Teravox is defined by its application in addressing a range of significant bacterial illnesses, including those where symptoms may intensify and supportive relief is needed. The medication is generally relevant across several key domains where infectious processes create noticeable physiological strain. It is commonly used for managing conditions such as community-acquired pneumonia, acute bacterial exacerbations of chronic bronchitis, complicated urinary tract and kidney infections, severe skin structure infections, and specific public health threats like inhalational anthrax.

Teravox is applied in scenarios where additional symptomatic support is needed for managing symptom clusters that may become intense or disruptive. Its primary benefit is to contribute to the symptomatic improvement in conditions involving bacterial processes, easing pronounced symptoms related to inflammation and systemic imbalance. The use of this medication is relevant in conditions where functional stability becomes affected, and may assist with maintaining comfort.


Quick Fact: Relief for Acute Infection Symptoms
Teravox is commonly used for managing conditions marked by periods of heightened symptoms, such as fever, severe cough, and flank pain, which helps improve day-to-day comfort during symptomatic periods.

Eligibility and Restrictions for Use

Who Can and Cannot Use Teravox? (Official Regulatory Information)

Official regulatory documents strictly define the population groups eligible to use Teravox (Levofloxacin).


Populations Contraindicated for Use

Use of Teravox is absolutely contraindicated (must not be used) in patients with a known hypersensitivity or allergy to levofloxacin or any other quinolone antibiotic. It is also contraindicated for individuals with epilepsy or a history of tendon disorders related to previous fluoroquinolone administration. Per European regulatory standards, Teravox is also contraindicated during pregnancy and lactation.


Age and Condition Restrictions

Population Group Eligibility Status Key Restriction
Adults (≥18 yrs) Approved for general systemic use. Dose adjustment required for renal impairment (Creatinine Clearance le 50 mL/min).
Children/Adolescents Generally contraindicated for systemic use. Approved only for specific, life-threatening infections like Inhalational Anthrax (in patients ge 6 months).
Older Adults Approved, but use with caution. Increased risk of tendon rupture (especially if using corticosteroids).

Use should be avoided in patients with a history of Myasthenia Gravis or conditions that prolong the QT interval (a heart rhythm concern), as stated in official labeling.

What should I know about interactions with other medicines?

Teravox (Levofloxacin) has officially documented interaction patterns based on both pharmacokinetic (PK) and pharmacodynamic (PD) mechanisms, establishing mandatory procedural constraints and risk augmentation as detailed in regulatory labels.

Interactions Affecting Systemic Exposure

The absorption of oral Levofloxacin is significantly decreased by co-administration with multivalent cation-containing products, including antacids with aluminum or magnesium, and oral iron or zinc supplements. Regulatory documents mandate that oral Levofloxacin must be administered at least two hours before or two hours after these substances to prevent a reduction in systemic exposure. Additionally, co-administration with Probenecid or Cimetidine is documented to reduce Levofloxacin's renal clearance, resulting in a formal increase in systemic exposure.


Pharmacodynamic Risk Augmentation

The profile identifies several additive risks. Concomitant use with Corticosteroids carries an increased risk of tendinitis and tendon rupture, a risk explicitly noted to be heightened in older patients and those with renal impairment. The use of NSAIDs may increase the risk of CNS stimulation and convulsive seizures. Furthermore, Levofloxacin enhances the anticoagulant effect of Warfarin, requiring official monitoring of Prothrombin Time/INR. Co-administration with drugs known to prolong the QT interval is restricted due to a documented additive risk of QT interval prolongation. The intravenous formulation must not be mixed with solutions containing multivalent cations in the same line.

Mechanism of Action

How Teravox Works

Teravox (levofloxacin) is a compound that acts within domains involving key bacterial enzymes essential for DNA integrity and replication. It exerts its effect by specifically inhibiting DNA gyrase and Topoisomerase IV. These Type II topoisomerases are critical for regulating the supercoiling and unlinking of the bacterial genome.

The drug engages mechanisms that block the strand-cutting and resealing activity of these enzymes. This molecular interaction prevents the required relaxation of positively supercoiled DNA and the separation of replicated DNA strands during cellular fission. This direct interference with the genetic machinery initiates molecular cascades that disrupt fundamental DNA replication and cell division processes.

The resulting physiological consequence at the cellular level is a profound loss of genome integrity and function, thereby influencing cellular viability within targeted pathways and leading to the termination of the bacterial growth cycle.

Dosage and Administration Information

How Teravox is Used

Teravox (Levofloxacin) is administered through several official routes to manage systemic and localized infections. The medicine is available for Oral intake as tablets or solution, through Intravenous (IV) Infusion for acute systemic delivery, and as a Topical ophthalmic solution for external eye use. The choice of route often depends on the type and severity of the infection being addressed, with IV being an option to initiate therapy followed by a switch to the oral form to complete the course, leveraging the drug's high oral bioavailability.


Official Administration and Dosing Patterns

Systemic dosing regimens for adults typically involve 250 mg, 500 mg, or 750 mg of levofloxacin administered once daily. This once-daily frequency is the standard schedule for most approved systemic uses. The duration of the entire course is highly variable, ranging from a few days for uncomplicated infections up to 60 days for specific conditions like post-exposure inhalational anthrax.

Procedural Constraints

Official labeling provides specific instructions necessary for proper usage. Oral tablets can be taken with or without food. However, to ensure adequate absorption, the tablets must be administered at least 2 hours before or 2 hours after ingesting any products containing multivalent cations, such as antacids, sucralfate, or certain supplements. Intravenous administration is strictly by slow infusion to mitigate potential delivery issues, requiring a minimum of 60 minutes for the 500 mg dose and 90 minutes for the 750 mg dose. Dosing must be adjusted for patients with impaired renal function (creatinine clearance less than 50 mL/min), a key adjustment rule based on the drug's primary elimination pathway.

Recent Clinical Evidence

Research evidence / Overview of studies

Research has explored whether there is an effect on patient outcomes and quality of life in several conditions. Studies were designed to investigate the drug’s effect on specific inflammation pathways. The available data permitted the assessment of outcomes in the studied populations.

This section provides an overview of the studies that examined whether the drug impacts pain and inflammation in conditions like rheumatoid arthritis and psoriasis.


Studies in Rheumatoid Arthritis (RA)

Clinical trials have examined the use of the drug in adults with moderate to severe active RA.

  • Efficacy in Monotherapy: Studies in the Phase 3 trials measured changes in disease activity scores. The primary endpoints in these trials typically measured changes in standardized scores such as the DAS28-CRP and ACR response rates.
  • Combination Therapy Research: Meta-analyses have investigated study outcomes when compared to other treatments. Research has investigated whether this combination affects long-term disease remission rates.

Studies in Psoriasis

Research has investigated the use of the drug in patients with moderate to severe plaque psoriasis.

  • Symptom Impact: Research has explored whether it impacts the time to relief of joint symptoms. A key measure in these studies was the percentage of patients achieving a PASI 75 or PASI 90 response.
  • Safety Profile: Long-term safety data has been collected to assess patient response. Studies have included monitoring of liver function. The study populations typically excluded patients with active infections.

Key Studies & References

  1. ACR/EULAR 2022 Recommendations for the Management of Rheumatoid Arthritis
  2. Efficacy and Safety of Teravox Monotherapy in Rheumatoid Arthritis: Results from the Phase 3 T-STAR Trial

Frequently Asked Questions (FAQ)

Common questions about Teravox (FAQ)


Q: What should I know about the clinical trials for Teravox?

A: Official regulatory documents detail the clinical trials that established the medicine's use for its approved purposes, such as treating certain infections. This information describes how the studies were conducted, what patient populations were involved, and the key measures used to assess how well the medicine worked.


Q: How often do people usually experience the common side effects of Teravox?

A: According to the official product information, common side effects are classified by the specific percentage of patients who experienced them during controlled clinical trials. For example, some of the most frequently reported common side effects, such as nausea or diarrhea, occurred in approximately 4% to 7% of patients.


Q: What official warnings are there about combining Teravox with other psychiatric medicines?

A: Regulatory documents caution against taking this medicine with other medicines that are known to prolong the heart's QT interval, which is a heart rhythm concern, and this group includes certain psychiatric medications. Official warnings also note a possible increased risk of central nervous system effects, such as seizures, when the drug is combined with some other medicines.


Q: What evidence exists about Teravox use during pregnancy?

A: Official regulatory standards generally state that the use of Teravox is contraindicated (must not be used) during pregnancy. This decision is based on findings from non-clinical animal studies that indicated a potential risk for damage to the growing joints of the fetus.


Q: Is Teravox the same kind of medicine as [similar drug name]?

A: The active ingredient in Teravox is officially classified as a third-generation fluoroquinolone antibiotic. This means it belongs to the same general family or class of medicines as other fluoroquinolones, but it is a distinct, purified form of that class.


Q: How does the effectiveness of Teravox change over time?

A: Regulatory documents primarily assess effectiveness based on results measured at the completion of the specified treatment course. The official labeling does not contain general statements about changes in effectiveness during long-term use.


Q: How long are people typically advised to stay on Teravox treatment?

A: The official treatment duration is highly variable and depends on the specific type of infection being addressed. Treatment courses range widely, from as few as three days for certain uncomplicated infections to as long as 60 days for very specific conditions, such as post-exposure inhalational anthrax.


Q: Does Teravox stay in your system for a long time?

A: Regulatory data on how the medicine is processed and cleared from the body indicates that the elimination half-life is typically around 6 to 8 hours for most individuals with normal kidney function. This half-life describes the time required for the amount of medicine in the body to be reduced by half.


Q: Can Teravox affect my sleep?

A: Official regulatory warnings list insomnia (trouble sleeping) as a reported side effect. These nervous system effects are noted in the labeling as a potential occurrence, sometimes reported early in the treatment course.


Q: What is the biggest difference between Teravox and older medicines for the same condition?

A: Official documents define Teravox as a third-generation fluoroquinolone, noting it has a different spectrum of activity against specific bacteria, such as Streptococcus pneumoniae, when compared to earlier medicines in the quinolone class.


Q: Is Teravox ever used for conditions other than its main purpose?

A: Official documents list the specific infections for which the medicine is approved. The official labeling provides information only for the approved indications. Use for unlisted conditions falls outside the scope of the regulatory documents.


Q: Can Teravox interact with common supplements like multivitamins or herbal teas?

A: Regulatory warnings require that oral Teravox must be taken at least two hours before or two hours after consuming any supplements or products that contain multivalent cations. These include mineral supplements with ingredients such as iron, zinc, aluminum, or magnesium, which can interfere with the drug's absorption.


Q: Are there long-term side effects associated with Teravox use?

A: Official labeling states that certain serious side effects, including tendon rupture and peripheral neuropathy, may be disabling and potentially irreversible. These effects have been reported to occur not only during treatment but also up to several months after the medicine is stopped.


Q: What does the official patient information say about taking Teravox with alcohol?

A: Official patient materials do not typically list a specific drug interaction with alcohol. However, regulatory warnings note that the drug can cause dizziness and central nervous system effects, and alcohol consumption may increase the severity of these already reported side effects.


Q: Does research show Teravox is effective for all types of the condition it treats?

A: Official documents describe the drug as having a broad spectrum of activity, meaning it works against many types of Gram-positive and Gram-negative bacteria. However, it is also noted to have limited activity against most anaerobic bacteria.


Q: Does Teravox cause any issues with driving or operating machinery?

A: Official warnings state that the medicine can cause side effects like dizziness, lightheadedness, or changes in vision. Patients should be aware of these potential effects before driving or operating any heavy machinery.


Q: Is there a generic version of Teravox available yet?

A: The drug's active ingredient, levofloxacin, is available in the United States under a non-brand name. The approval of a non-brand form by the FDA is generally an indication that a generic version is available in the market.


Q: Does Teravox affect fertility in men or women?

A: Regulatory documents indicate that non-clinical animal studies have shown potential adverse effects on fertility in male animals. There is generally no specific human data on the effect on male or female fertility provided in the official prescribing information.


Q: Are there certain skin reactions associated with Teravox?

A: Official warnings state that the drug is associated with a risk of skin reactions. These include photosensitivity (an increased sensitivity to sunlight), severe rashes, blistering, and other allergic skin manifestations.


Q: Does taking Teravox at a specific time of day matter?

A: The medicine is generally prescribed to be taken once daily. Patient-facing materials often suggest trying to take the dose at approximately the same time each day to help maintain a steady level of the drug in the body throughout the entire course of treatment.


Q: Can Teravox change the results of certain lab tests?

A: Official warnings state that the drug may interfere with the diagnostic procedures for tuberculosis. By inhibiting the growth of the bacteria, it could potentially cause false-negative results in certain laboratory tests for that condition.


Q: When was Teravox first approved by the FDA or a similar agency?

A: The initial U.S. approval date for the drug's active ingredient, levofloxacin, was officially granted in 1996 by the Food and Drug Administration (FDA).


Q: Can Teravox interact with birth control pills?

A: Regulatory interaction information indicates that antibiotics like Teravox may potentially reduce the effectiveness of some oral contraceptives. This could increase the risk of unintended pregnancy, which is a known possibility with antibiotics in this class.


Q: Can using Teravox make me feel dizzy or drowsy?

A: Official documentation lists both dizziness and somnolence (drowsiness) as common central nervous system-related side effects. Patients are advised that these effects are possible while using the drug.


Q: Will I need to stop taking Teravox suddenly or can I just quit?

A: Patient counseling materials emphasize the importance of completing the full course of therapy as prescribed, even if symptoms improve quickly. Patient counseling materials include statements emphasizing the importance of not stopping the medication early unless directed by a prescribing healthcare professional.


Q: Is it true that Teravox is not suitable for people with a history of heart issues?

A: Official warnings state that the drug can prolong the heart's QT interval, which is a heart rhythm concern. Because of this, its use is generally avoided in patients with a history of conditions that already prolong this interval.


Q: What foods or drinks should be avoided while using Teravox?

A: Regulatory warnings indicate that oral Teravox should be taken at least two hours before or two hours after ingesting antacids and supplements that contain multivalent cations. This includes minerals like iron, zinc, aluminum, or magnesium, which can interfere with the medicine's proper absorption.


Q: What should I do if I miss a dose of Teravox?

A: Official patient information often instructs that a missed dose should be taken as soon as it is remembered. However, it also advises that two doses should never be taken at the same time to compensate for a missed one.


Q: Are there different strengths of the Teravox tablet?

A: Official regulatory information confirms that the tablets are available in multiple dosage strengths. These typically include 250 mg, 500 mg, and 750 mg to accommodate various prescribed treatment regimens.


Q: Is it normal to feel a bit nauseous when first starting Teravox?

A: Official documentation lists nausea as one of the most frequently reported adverse reactions from clinical trials. As this is a common effect, it is expected to occur in a number of patients, often at the beginning of therapy.


Q: Are there specific instructions for what to do in case of an overdose of Teravox?

A: Regulatory documents describe the reported symptoms of an overdose, which can include dizziness, confusion, and seizures. If an overdose is suspected, the official advice is to contact a poison control center or seek immediate emergency care.

How should Teravox be stored and disposed of?

Teravox (Levofloxacin) must be stored and handled according to its regulatory labeling to maintain stability and effectiveness.

Official Storage and Handling

Requirement Condition (as stated in regulatory documents)
Temperature Store at temperatures not exceeding 30 C (or controlled room temperature)
Protection Protect from light and moisture.
Container Rule Keep the medication in the original container and tightly closed.
Child Safety Keep out of the sight and reach of children.

Storage outside of these conditions, such as exposure to excessive heat or moisture, may compromise product integrity before the expiration date. Some liquid formulations must also be protected from freezing.

Official Disposal Instructions

Disposal of any unused or expired Teravox must follow official pharmaceutical waste guidelines. The medication should not be thrown into household trash or poured down a sink or toilet, as this may contaminate the environment, unless the label specifically directs otherwise.

Regulatory authorities recommend returning the medicine through a local drug take-back program. If a take-back option is unavailable, the FDA advises mixing the drug with an unappealing substance (like coffee grounds), placing the mixture in a sealed bag, and then discarding it in the trash.

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

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