Tabine

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Tabine

Treatment option: Leukemia

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 Tabine

Quick Facts

Property Description
Active Ingredient Cytarabine (1-beta-D-Arabinofuranosylcytosine)
Form Injectable solution (or powder for solution)
Pharmacological Class Antimetabolite, Antineoplastic agent
General Purpose Controlling rapid, abnormal cell growth
Origin Synthetic (Pyrimidine nucleoside analog)

What Type of Medicine is Tabine (Cytarabine)?

Tabine is a specialized, prescription-only medication primarily classified as both an antimetabolite and a potent antineoplastic agent, used in the context of chemotherapy. Its foundational component is the active ingredient, Cytarabine.

Cytarabine is an anticancer drug that interferes with the growth of cancer cells; its primary role is to stop unwanted cells from multiplying. This compound is designated as a pyrimidine analog, a structural feature that plays a role in inhibiting DNA replication. This classification indicates that the drug’s general purpose is to interfere with the metabolic pathways of rapidly growing cells, providing a systemic strategy for controlling abnormal cell proliferation in serious proliferative disorders, such as acute myeloid leukemia. As a member of the antimetabolite class, it specifically operates by disrupting the cellular processes necessary for growth, which serves as its primary intended therapeutic benefit.

Composition and Pharmaceutical Form

The active ingredient, Cytarabine, is a synthetic compound that functions as a pyrimidine nucleoside analog, chemically mimicking a natural building block of DNA. The pharmaceutical entity is manufactured as a single active ingredient product, typically presented as a sterile injectable solution or a lyophilized powder requiring reconstitution into a solution, utilizing an aqueous vehicle.

As an agent used in hematologic malignancies, Cytarabine requires conversion to its active triphosphate form inside the cell. This demonstrates that the medicine is specialized to target the fundamental building blocks of rapidly growing cells. This form dictates that the medication must be administered via specialized routes, primarily intravenous or subcutaneous injection, and sometimes intrathecal administration, a route that differentiates it from most IV agents by allowing direct delivery to the cerebrospinal fluid.

Regulatory References

  1. NIH DailyMed

What side effects are possible with Tabine?

Adverse Reaction Scope

Tabine (Cytarabine) primarily affects rapidly dividing cells, and its main toxic effect documented by regulatory authorities is bone marrow suppression (myelosuppression), which is classified as Very Common (ge 1/10). This severe toxicity is dose-limiting and can lead to life-threatening complications such as sepsis and hemorrhage secondary to leukopenia and thrombocytopenia, respectively.


Frequency and System-Organ Classes

The most frequent adverse reactions affect several systems:

  • Very Common (ge 1/10): Bone marrow failure, anemia, infection (sepsis, pneumonia), fever, stomatitis (oral/anal ulceration), nausea, vomiting, diarrhea, hepatic function abnormal, rash, and alopecia.
  • Common (ge 1/100 to < 1/10): Anorexia, hyperuricemia, bleeding (all sites), and thrombophlebitis.

Adverse events are formally grouped by System-Organ Class, highlighting high-frequency impact on Blood and Lymphatic System Disorders and Gastrointestinal Disorders.


Serious Reactions and Safety Patterns

Serious adverse reactions reported in official labeling include severe pulmonary toxicity, specifically Acute Respiratory Distress Syndrome (ARDS) and pulmonary edema, and serious Central Nervous System (CNS) disorders, including cerebral and cerebellar dysfunction, particularly with high-dose regimens. Cases of cardiomyopathy have also been reported.

Time-related patterns are noted: leukopenia follows a biphasic course, with its lowest counts occurring approximately at days 7–9 and 15–24. Additionally, the systemic reaction known as Cytarabine Syndrome typically begins 6 to 12 hours after administration.

Population-Specific Safety

Regulatory documents highlight that the risk of CNS toxicity may be increased in older patients and those with pre-existing hepatic or poor renal function. The medication is classified under Pregnancy Category D, meaning it can cause fetal harm when administered systemically to a pregnant woman. Due to the immunosuppressant effects, official warnings state that administration of live or live-attenuated vaccines carries a risk of serious infection.

Overdose and Emergency Response

The official regulatory profile for Tabine overexposure centers on severe, systemic toxicities and mandated immediate action. Overdosage is associated with potentially fatal outcomes, and treatment must be administered under close medical supervision.

Manifestation Severity Action Required
Severe Bone Marrow Depression Potentially Fatal Cease Treatment Immediately
Irreversible CNS Toxicity High Risk Seek Emergency Medical Care
Pulmonary/Gastrointestinal Toxicity Severe and sometimes Fatal Supportive Care Mandated

Overdose is primarily defined by severe bone marrow depression, a condition officially leading to leukopenia, thrombocytopenia, and anaemia. High-dose exposure is documented to cause severe and sometimes fatal toxicity to the central nervous system, including cerebellar/cerebral dysfunction, somnolence, and the risk of irreversible neurological injury and death. Severe pulmonary effects, such as Acute Respiratory Distress Syndrome, and severe gastrointestinal ulceration are also officially reported manifestations.

Because no specific antidote is known for Tabine overdosage, immediate medical help is required. Regulatory guidance mandates that treatment must be ceased upon signs of serious hematologic depression. Management is limited to symptomatic and supportive measures, including transfusions and active control of infection, due to the documented risk of potentially fatal complications arising from the suppressed bone marrow. Patients with pre-existing renal or hepatic impairment have an officially noted higher likelihood of CNS toxicity.

Therapeutic Uses of Tabine

What Tabine Treats: Main Uses and Benefits

This agent is generally used across conditions characterized by periods of heightened symptoms, such as Acute Myeloid Leukemia (AML) and the blast phase of Chronic Myeloid Leukemia (CML). This application contributes to the process of achieving and maintaining a disease-free state and is used in areas where short-term symptom management is appropriate.

The therapy plays a role in managing symptoms related to systemic imbalance. It is commonly used to help with symptom clusters like profound fatigue, high vulnerability to infection, and abnormal bleeding or bruising, which are symptoms that create noticeable physiological strain. The therapy supports the patient during difficult episodes by easing distress and contributes to maintaining functional stability. The medication is applied in clinical settings that involve acute or unstable symptom patterns, including situations where conditions involve episodic or fluctuating manifestations, and is commonly used to help with symptoms of increased neurological or muscular activity that may arise from disease spread.

“The treatment may assist with maintaining a sense of stability when symptoms are more noticeable, especially by addressing systemic and localized discomfort.”


Quick Fact: Relief for Symptoms Related to Systemic Imbalance The therapeutic benefit supports the patient during difficult episodes by easing distress and assists with maintaining functional stability, which is relevant for managing physiological strain and systemic discomfort.


Regulatory References

  1. NIH MedlinePlus Drug Information on Cytarabine

Eligibility and Restrictions for Use

Who Can and Cannot Use Tabine?

Tabine (Cytarabine) is officially approved for use in adult and pediatric patients for established indications, such as acute leukemias. However, eligibility is strictly defined by regulatory guidelines based on a patient's pre-existing conditions and physiological state.

Absolute Exclusions (Contraindications) The medicine is strictly contraindicated and must not be used by any patient with a known hypersensitivity to Cytarabine or any component of the specific formulation. Furthermore, for the liposomal form of Cytarabine, its use is also contraindicated in patients with an active meningeal infection.

Restrictions for Vulnerable Populations Eligibility is constrained for specific age groups and reproductive states. Neonates and premature infants must not receive formulations containing the diluent benzyl alcohol. The drug is classified as Pregnancy Category D due to definite fetal risk, and regulatory bodies advise against use during breastfeeding. Patients with hepatic or renal function impairment require treatment to be initiated with caution and close monitoring due to increased toxicity risk. The same caution applies to patients with pre-existing bone marrow suppression.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory documents categorize Tabine’s interaction profile based on managing severe toxicity risks and preventing therapeutic antagonism. The interaction structure is defined by prohibitions on specific co-administrations and restrictions related to concurrent cytotoxic agents.


Formal Restrictions and Prohibitions

Tabine is officially restricted from co-administration with several agents. Use with 5-Fluorocytosine (Flucytosine) is prohibited due to therapeutic antagonism, which abolishes the efficacy of Flucytosine. Co-administration with Live or Live-Attenuated Vaccines and Granulocyte-Transfusion is avoided due to the documented risk of severe infection and pulmonary toxicity, respectively. Furthermore, Tabine solution must not be mixed with several specific products, including Heparin, Insulin, and Methotrexate, due to physical incompatibilities.


Exposure and Toxicity Effects

The co-administration of Tabine with other chemotherapeutic agents or cranial/spinal irradiation increases the documented risk of significant toxicity, particularly neurotoxicity. Regimens containing Tabine may also cause a drug-drug interaction that substantially reduces the gastrointestinal absorption and plasma levels of orally administered Digoxin tablets.


Special Administration and Population Notes

A regulatory restriction is placed on the timing of administration: Intravenous and intrathecal Tabine should not be given within a few days of each other due to spinal cord toxicity risk. Patients with documented hepatic or renal impairment have a higher likelihood of Central Nervous System (CNS) toxicity, as these conditions compromise the drug's elimination pathway.

Mechanism of Action

Tabine (Cytarabine) functions as an antimetabolite by interfering with the fundamental biochemical process of DNA replication. The core action involves three highly specific, sequential mechanistic domains.

The Active Metabolite and Target Enzyme Inhibition

Before acting, the prodrug is converted inside the cell by the enzyme Deoxycytidine Kinase ( dCK) into its active form, ara-CTP. This active metabolite structurally mimics the natural dCTP and initiates its mechanism by competitively inhibiting the enzyme DNA Polymerase, which is responsible for assembling DNA strands. This activation domain ensures the formation of the active agent where DNA synthesis occurs.

Termination of DNA Chain Elongation

Once bound, ara-CTP is incorporated directly into the growing DNA strand. Due to its unique molecular structure, this incorporation prevents any further nucleotides from being added, causing an immediate and irreversible termination of the DNA chain. This halts the cell cycle in the S-phase (synthesis phase) and represents the key molecular event leading to structural genomic instability.

Inducing Programmed Cell Death (Apoptosis)

The unrepairable genomic damage caused by widespread DNA chain termination triggers the cell's internal DNA damage response checkpoints. When these checkpoints are overwhelmed, they activate the cascade for programmed cell death (apoptosis). The resulting mechanistic cascade leads to the elimination of the proliferative cell population.

Dosage and Administration Information

How to Use Tabine

Tabine (Cytarabine) administration follows established protocols. The medicine is classified as an antimetabolite and is not administered orally due to poor absorption and rapid metabolism. Its usage is governed by the methods of delivery, dose calculation, and cyclical scheduling.


Administration Scope

Feature Administration Parameters
Route of Administration Administered via Intravenous (IV) Injection or Infusion, Subcutaneous (SC) Injection, or Intrathecal (IT) Injection, depending on the therapeutic phase.
Dosing Schedule Doses are calculated based on Body Surface Area (mg/m^2) or Body Weight (mg/kg) and are administered in defined courses. Standard induction regimens for IV use often involve 100 mg/m^2/day.
Frequency & Cycles Usage follows a Cyclic Dosing pattern, where daily administration (e.g., for 5-10 days) is followed by a necessary, scheduled rest period before the next cycle begins.
Preparation Requirements The sterile solution or reconstituted powder must be further diluted with an approved intravenous fluid, such as 0.9% Sodium Chloride or 5% Dextrose in Water, for infusion.
Population Rules Dose modifications are generally required for patients with existing hepatic impairment due to the drug’s metabolism. Pediatric patients may receive the higher end of the standard dose ranges.
Special Conditions Administration via the intrathecal route is restricted to the preservative-free formulation only, and all use must be under the supervision of a physician experienced in chemotherapy.

Usage Protocol

Tabine administration involves multiple procedural steps, including selecting the appropriate formulation, precisely calculating the dose, and adhering to the specified infusion rate (e.g., continuous 24-hour infusion versus rapid injection) for the selected route. The overall use protocol is defined by these parameters, dictating the time-relationship and method of delivery across all treatment phases.

Recent Clinical Evidence

Research evidence / Overview of studies for Tabine

Evidence for use in Acute Myeloid Leukemia (AML) Studies

The research exploring Tabine's use in Acute Myeloid Leukemia (AML) is extensive, and these studies form the basis of the evidence base. This area has been the subject of numerous Randomized Controlled Trials (RCTs), along with large supporting systematic reviews that consolidated information from many different trials. These studies monitored key long-term outcomes, including Overall Survival and the ability to achieve and maintain a Disease-Free State, often referred to as remission. These RCTs have also been used in research exploring different specific use in trials.

Research explored patterns observed in large populations of newly diagnosed adult patients. Studies also explored regimens for pediatric patients and different strategies for older adults studied in the trials. The findings describe patterns observed in these studies regarding patient survival and the rates at which remission was achieved, with studies reporting how outcomes evolved in the observed populations based on the specific chemotherapy combination examined.

What remains uncertain involves the optimization of administration over time. While the evidence base for induction (the initial regimen) is well-established, there is limited information for long-term outcomes regarding the durability of the response years after completion of the initial therapy. Results apply only to the populations studied, and data for certain high-risk groups remain insufficient, meaning continuous research is ongoing to refine the use of Tabine in AML.


Evidence for use in the Blast Phase of Chronic Myeloid Leukemia (CML)

Research has also explored Tabine in the blast phase of Chronic Myeloid Leukemia (CML), examining its administration in conditions characterized by fluctuating or unstable symptoms. The evidence structure here differs from AML, relying more on smaller clinical trials and observational settings that evaluate responses during these unstable periods. Research examined short-term symptom changes and outcomes related to systemic or functional imbalance.

Studies monitored patient response and achievement of a remission status following the initiation of the regimen for these acute, disruptive episodes. Studies explored Tabine's inclusion as part of a combination regimen in many studies. Evidence contributes to understanding symptom patterns, particularly by tracking outcomes related to physiological strain or stress experienced by patients in the acute phase of the condition.


Long-Term Studies and Follow-Up Duration

Studies for Tabine have been conducted over various time intervals to understand the duration of response. Follow-up durations were used to measure the primary long-term outcomes, such as Overall Survival and the length of time patients remained in a Disease-Free State.

The most extensive long-term research is in the context of AML, where studies monitored patterns over many years to establish benchmarks for survival and relapse rates. These findings describe group patterns, not personal outcomes, and reflect the specific conditions under which they were conducted. Despite the existence of long-term survival data, the research is less definitive regarding the long-term impact on aspects like daily functioning or activity level years after initial therapy is completed. Long-term effects are not fully established for all subgroups.


Evidence in Specific Patient Populations

Research has evaluated Tabine's administration across different demographics. This includes studies focusing on the patterns observed in children and adolescents, for whom specific trials were conducted to assess its administration in their particular age group. Tabine was also studied for use in older adults, where regimens were explored based on co-existing health issues.

Specialized research examined the intrathecal administration route, focusing on populations where this delivery method was employed. These studies specifically monitored drug concentrations and associated outcomes in this unique population.


What is Still Uncertain About Tabine Research

Research highlights what is known, but evidence also indicates several areas where certainty remains low or where more studies are needed. A key limitation is that evidence quality varies across studies, and findings were sometimes mixed, particularly when comparing different administration regimens against each other. The evidence suggests that results apply only to the populations studied, meaning that research is ongoing to better characterize its use across all patient subgroups and all stages of disease.

Key Studies & References

  1. Cytarabine - StatPearls (NIH Bookshelf) - Reference for Indications and Administration Routes

Frequently Asked Questions (FAQ)

Common questions about Tabine (FAQ)

Q: Does Tabine require special monitoring during use?

Monitoring is typically part of the administration protocol. Official documents indicate that blood counts (hematologic monitoring) are checked frequently due to the drug's primary toxicity, which is myelosuppression (bone marrow suppression). Monitoring of hepatic and renal function is also commonly performed because pre-existing impairment in these organs may lead to an increased risk of toxicity.


Q: Can taking Tabine make me feel tired or drowsy?

Fatigue is reported. Official product information indicates that fatigue is listed as a potential adverse reaction in clinical studies. Additionally, documented Central Nervous System (CNS) disorders may include related effects such as dizziness or somnolence (drowsiness).


Q: Does Tabine have any long-term side effects that are known?

Long-term effects are studied. As with many chemotherapy agents, regulatory documents contain information about the potential risk of secondary malignancies and long-term organ toxicity. Official research continues to follow patients over many years to assess the full long-term impact on health and daily functioning.


Q: Are there any warning signs I should look for while taking Tabine?

Official safety warnings describe signs related to the drug's main toxic effects. These typically include signs of serious infection (like fever or chills), any unusual bleeding or bruising, and symptoms of severe CNS dysfunction such as difficulty with coordination or movement.


Q: Is there a list of common drug classes that interact with Tabine?

Interactions are grouped by class. Regulatory texts define interactions primarily within drug classes. This includes prohibitions with other cytotoxic agents which increase toxicity, and restrictions on live or live-attenuated vaccines due to the risk of serious infection from immunosuppression. Interactions can also affect the absorption of certain orally administered drugs, such as some heart and gastrointestinal medicines.


Q: What should a person generally expect in the first week of taking Tabine?

Expectations vary in the first week. Official safety data indicates that common expectations may include Very Common side effects such as nausea/vomiting or fever. The white blood cell count typically begins its initial decline, called leukopenia, around days 7–9 after administration.


Q: Is Tabine a medicine that requires long-term use?

Use is scheduled, not permanent. According to the official product information, Tabine administration is managed in highly specific, scheduled courses and cyclic dosing regimens. This protocol, which includes defined rest periods, indicates that the drug is designed for structured, intermittent use rather than continuous or permanent treatment.


Q: Can people with kidney problems use Tabine?

Use is possible with caution. Official documents indicate that Tabine is authorized for use in patients with renal impairment (kidney problems), but treatment is administered with caution and close monitoring. This is because patients with kidney impairment have a documented increased risk of Central Nervous System (CNS) toxicity.


Q: What does the research generally say about the effectiveness of Tabine?

Research indicates outcomes. Studies, including large Randomized Controlled Trials (RCTs), form the basis of the evidence for Tabine's use. Official information indicates that researchers monitored key long-term outcomes, including the ability to achieve and maintain a Disease-Free State (remission) and Overall Survival in patient populations.


Q: How long has Tabine been available to the public?

Information is available. Official governmental drug databases usually contain the original approval date or market launch date of the product. This information is a standard part of a drug's regulatory history.


Q: What is the difference between Tabine and a supplement?

It is a chemotherapy agent. Tabine is classified as a synthetic, prescription-only antineoplastic agent (chemotherapy) used to interfere with fundamental biological processes like DNA replication. This chemical classification differentiates it from products sold or marketed as dietary supplements.


Q: Do side effects from Tabine usually go away over time?

Resolution is documented. Official regulatory documents do provide information on the resolution (reversibility) of certain adverse events following dose adjustment or completion of the regimen. The timing for general side effects is often inferred from the documented course and duration of the effects observed in clinical studies.


Q: Does Tabine interact with common over-the-counter pain relievers?

General warnings apply. Regulatory documents typically contain a general statement warning against co-administration with other immunosuppressive or hepatotoxic agents. This general warning may apply to certain types of over-the-counter pain relievers, depending on their specific properties.


Q: What happens if a person misses a dose of Tabine?

Protocols are defined. Protocols for managing a lapse in the mandated schedule are standard components of the prescribing information for drugs with strict dosing requirements. Official regulatory texts define the procedure for managing a missed dose within the prescribing information.


Q: How long does it usually take for Tabine to start having an effect?

Effect starts at the cellular level. The drug's mechanism of action begins upon cellular uptake and conversion into its active form, ara-CTP. The time until the full clinical effects are observed is related to the drug's activity in halting the cell cycle (S-phase) and the overall effect on the abnormal cell population.


Q: How quickly does Tabine leave the body after stopping it?

Elimination data is available. The pharmacokinetic profile for Tabine is documented in official regulatory materials. This profile includes information on its absorption, distribution, metabolism, and half-life (how quickly it is eliminated from the body).


Q: Is there a maximum amount of time a person can safely take Tabine?

Cycles establish limits. Regulatory documents define the total number of courses or cycles allowable under standard treatment protocols. This established protocol places an authorized limit on the cumulative dose and total duration of administration for the studied population.


Q: What is the difference between the onset and the full effect of Tabine?

Measured by two factors. The difference between the initial onset and the full effect is typically described by two sets of data in regulatory documents. These are the pharmacokinetic (PK) parameters (measuring drug concentration in the body) and the pharmacodynamic (PD) endpoints (measuring the clinical response, such as time to achieve remission).


Q: Can Tabine be used by individuals with certain heart conditions?

Caution is advised. Official warnings often include caution for individuals with pre-existing cardiac disease because cardiomyopathy (a heart muscle issue) has been reported as a serious adverse reaction. This condition is monitored in the safety profile.


Q: Does Tabine have a generic version available yet?

Generic status is public. Official government-run drug resources, such as the FDA's DailyMed, provide the official status on whether the active ingredient, Cytarabine, is available in generic form for use.


Q: Is Tabine known by any other name internationally?

Alternative names exist. Regulatory documents, such as the European Summary of Product Characteristics (SmPC), or WHO classification systems typically list the various trade names and the ATC code used for the active ingredient globally.


Q: Are there other ways the active ingredient in Tabine is used?

Other uses are documented. Official regulatory and NIH documentation for the active ingredient, Cytarabine, often summarizes all its approved uses and indications. This may include different formulations (e.g., liposomal) or other specific therapeutic applications for the same compound.

How should Tabine be stored and disposed of?

How to Store and Dispose of Tabine (Cytarabine)

Official regulatory guidelines mandate specific conditions for the storage and disposal of this medication, which must be strictly followed.


Storage Requirements

  • Temperature: Store the product at controlled room temperature, between 20 C and 25 C (68 F to 77 F).
  • Protection: The medicine must be stored protected from light and it is prohibited to freeze the solution.
  • Container: Keep the product in its original container until the moment of use.
  • Child Safety: It is mandatory to keep Tabine out of the sight and reach of children.
  • Stability: A solution that has been reconstituted or diluted must be used within 48 hours when stored at room temperature.

Disposal Instructions

Tabine is classified as a hazardous medicinal product. Unused or expired medication and related waste must be disposed of according to local procedures for cytotoxic agents. It is strictly prohibited to discharge the product into wastewater, sewage systems, or household trash.

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

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