Vinorelbin

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Vinorelbin

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 Vinorelbin

Property Description
Active Ingredient Vinorelbine tartrate
Form Solution for injection, Oral capsule
Pharmacological Class Antineoplastic agent, Mitotic inhibitor
Origin Semisynthetic Vinca-alkaloid

Vinorelbine is a medication classified as a semisynthetic Vinca-alkaloid and is formally grouped as an antineoplastic agent. The active compound is Vinorelbine tartrate, which is chemically derived from the naturally occurring alkaloids found in the Catharanthus roseus plant, undergoing modification to enhance its therapeutic properties. This classification indicates that the compound is engineered to interfere with and counteract the uncontrolled proliferation characteristic of abnormal cellular growths.

This medicine belongs to the functional group known as mitotic inhibitors, distinguishing it by its specific focus on the mechanics of cell division. Vinorelbine serves as a member of this class utilized in systemic treatment strategies to manage widespread cellular proliferation.

Vinorelbine’s General Purpose and Mechanism Principle

The general therapeutic purpose of Vinorelbine is rooted in its action as a microtubule destabilizing agent. The core principle involves interrupting the mechanical process of cell division by binding to the protein building blocks (beta-tubulin subunits) that form the internal cellular scaffolding. This interaction inhibits the proper assembly of the mitotic spindle, a structure essential for successful cell replication.

By causing this disruption, the drug forces the aggressively dividing abnormal cells into mitotic arrest, thereby compelling them toward apoptosis, which is programmed cell death. This general mechanism of stopping the cellular growth cycle is the core benefit and primary therapeutic principle behind the medication’s designation.

Pharmaceutical Forms: Injection and Oral Capsule

Vinorelbine is presented as a single active ingredient in two primary dosage forms: a sterile aqueous solution for injection intended for the intravenous (IV) route, and a distinct liquid-filled gelatin capsule designed for oral administration. This dual availability is a key differentiating feature for Vinorelbine among some antineoplastic agents, offering logistical flexibility in treatment plans.

Regulatory References

  1. WHO Model List

What side effects are possible with Vinorelbin?

Vinorelbin, an antineoplastic agent, can cause a range of side effects, with myelosuppression (bone marrow suppression) being the primary dose-limiting toxicity. This suppression typically manifests as neutropenia (low white blood cells), which increases the risk of serious infection and may require treatment delays or dose reductions.

Common and Serious Side Effects

System/Type Common Adverse Reactions (approx. 10% or more) Serious or Potentially Life-Threatening Reactions
Hematologic Neutropenia, Anemia, Thrombocytopenia (low platelets) Febrile neutropenia, Sepsis
Gastrointestinal Nausea, Vomiting, Constipation, Diarrhea, Stomatitis (mouth sores), Loss of appetite Severe constipation, Paralytic ileus, Bowel obstruction, Bowel necrosis, Perforation
Neurologic Peripheral neuropathy (sensory symptoms like tingling or numbness), Asthenia (weakness, fatigue) Severe motor neuropathy, Significant muscle weakness
Injection Site Injection site reactions, Pain, Phlebitis Extravasation (leakage outside the vein) leading to tissue necrosis

Other Common Effects: Transient liver enzyme elevations (AST, bilirubin), hair loss (usually mild thinning), and jaw pain may also occur.

Safety Information and Warnings: Patients should be closely monitored with regular Complete Blood Counts (CBC) before each dose. Severe constipation and bowel obstruction have been reported, making a proactive bowel regimen (hydration, fiber, stool softeners) essential. Vinorelbin is a vesicant, and extravasation at the injection site can cause severe local damage. Pulmonary toxicity, including acute bronchospasm, interstitial pneumonitis, and Acute Respiratory Distress Syndrome (ARDS), has also been observed. Vinorelbin can cause fetal harm, and effective contraception must be used during treatment and for several months after the last dose by both male and female patients.

Overdose and Emergency Response

Overdose and when to seek help

The Vinorelbine overdose profile is formally documented in regulatory information, describing the manifestations that occur following excessive exposure. An overdose is typically associated with an exaggeration of the drug's known toxicities.

Documented Overdose Presentations

The most severe and dose-limiting effect documented is severe granulocytopenia (low white blood cell count), which significantly increases the risk of infection. Other documented manifestations include myelosuppression (anemia and thrombocytopenia), severe neurotoxicity (motor and sensory neuropathies), and serious gastrointestinal complications such as paralytic ileus. The inadvertent intrathecal administration of the intravenous formulation is a distinct, documented event with fatal consequences.

When to Seek Urgent Medical Help

Official regulatory statements mandate that medical help must be sought immediately for any suspected overdose or for the appearance of severe symptoms. This includes signs indicative of a life-threatening event, such as a fever (suggesting potential neutropenic sepsis) or unexplained difficulty breathing (potential Acute Respiratory Distress Syndrome).

Management of Vinorelbine overdose is limited to symptomatic and supportive treatment, as no specific antidote is known.

Therapeutic Uses of Vinorelbin

What Vinorelbine Treats: Main Uses and Benefits

Vinorelbine is commonly used in clinical settings to manage conditions presenting with systemic or localized discomfort, such as in conditions like Non-Small Cell Lung Cancer (NSCLC) and Advanced Breast Cancer. The drug is relevant within the established therapeutic frameworks for conditions such as advanced NSCLC. It is considered relevant in contexts involving heightened systemic burden, with the therapeutic goal of influencing the disease's progression.

This medication is relevant for easing symptom clusters that may become distressing, such as the discomfort or functional strain associated with a growing tumor mass. It is often used during phases when symptoms become more noticeable due to disease activity.

“This therapy is applied across domains where additional symptomatic support is needed and is relevant when symptoms create noticeable physiological strain.”

By addressing the underlying disease process, it helps maintain a sense of stability and contributes to support for overall comfort during periods of heightened discomfort, helping patients cope more steadily with symptom fluctuations.

Quick Note: Relevant for managing symptoms related to tumor bulk

Eligibility and Restrictions for Use

Who Can and Cannot Use Vinorelbine?

Vinorelbine eligibility is strictly determined by official regulatory labeling, focusing on specific health conditions and patient demographics. It is generally approved for use in adult patients.

Absolute Contraindications

Vinorelbine must not be used in patients with:

  • Known hypersensitivity to vinorelbine or other vinca alkaloids.
  • An Absolute Neutrophil Count (ANC) below a required threshold (typically <1,000 to <1,500 cells/mm^3) prior to treatment.
  • Pregnancy or Lactation (breastfeeding), due to risks of fetal harm.
  • Severe, drug-induced granulocytopenia.

Conditional Use and Restrictions

Treatment is conditional or restricted for certain populations:

  • Hepatic Impairment: Dose adjustments or reductions are mandated for specific elevations in serum total bilirubin, indicating limited use based on liver function.
  • Peripheral Neuropathy: Treatment must be discontinued if severe neuropathy (e.g., Grade 2 or higher) develops.
  • Pediatric Patients (Children/Adolescents): Use is not established and is generally not recommended, as safety and efficacy data are insufficient for this population.

What should I know about interactions with other medicines?

Vinorelbin Interactions with other medicines and products

Official regulatory information describes interactions that primarily modify the concentration of Vinorelbin in the body or produce additive toxic effects with other therapies.


Pharmacokinetic and Metabolic Restrictions

Vinorelbin is metabolized by the CYP3A4 enzyme system, and its movement in the body involves the P-glycoprotein (P-gp) transporter. Co-administration with strong CYP3A4 inhibitors (e.g., Itraconazole, Ketoconazole) increases the plasma concentration of Vinorelbin by decreasing its breakdown, which can lead to increased systemic exposure and toxicity.

Conversely, strong CYP3A4 inducers (e.g., Rifampicin, Phenytoin) may decrease the efficacy or exposure of the medicine. The simultaneous use of P-gp modulators is also documented to alter systemic concentration. Grapefruit or grapefruit juice should be avoided as it can inhibit CYP3A4 in the gut.


Contraindications and Pharmacodynamic Effects

Co-administration with the Yellow fever vaccine (live attenuated) is formally contraindicated due to the risk of severe generalized vaccine disease in immunosuppressed individuals. Other live attenuated vaccines are generally not recommended. Pharmacodynamic interactions include documented additive toxicity when combined with certain chemotherapy agents:

  • Use with Mitomycin C is associated with an increased risk of severe bronchospasm.
  • Use with Cisplatin is associated with an increased incidence of granulocytopenia (low white blood cell count).

Interaction risk with CYP3A4 inhibitors is amplified in patients with hepatic impairment due to existing compromised clearance mechanisms.

Mechanism of Action

The mechanism of Vinorelbine is defined by its role as a microtubule destabilizing agent, primarily targeting the structural architecture of proliferating cells, which leads to the initiation of programmed cell death (apoptosis).

Molecular Targeting and Microtubule Dynamics

Vinorelbine acts by high-affinity, reversible binding to the beta-tubulin subunit at the Vinca-binding domain. This interaction kinetically suppresses microtubule polymerization, preventing the structural elements of the cell from correctly assembling. This initial molecular step establishes the mechanism by which disruption is concentrated on the rapid construction needed for cell division.

Mitotic Arrest and Apoptotic Cascade

The functional failure of microtubule dynamics prevents the correct alignment of chromosomes, triggering the Spindle Assembly Checkpoint (SAC). This sustained activation leads to mitotic arrest at the metaphase stage, which subsequently drives the cell into Mitotic Catastrophe. This pathway ultimately results in programmed cell death (apoptosis), representing the final physiological change produced by the mechanism.

Dosage and Administration Information

How to Use Vinorelbine: Official Administration Guidelines

The usage of Vinorelbine is defined by formal administration protocols, dictating the acceptable routes, standardized dose calculations, and specific conditions for delivery.


Administration Scope

Instruction Detail
Route of Administration The soft capsule form is administered orally and must be swallowed whole. The solution for injection is administered intravenously (IV) only, as intrathecal administration is strictly prohibited.
Dosing Schedule Doses are calculated based on the individual's Body Surface Area (BSA). For the oral form, the dose begins at 60 mg/m^2 once weekly for the first three administrations, typically escalating to 80 mg/m^2 weekly thereafter if tolerated. The IV dose is commonly 30 mg/m^2 once weekly.
Frequency and Timing Administration for both forms is typically scheduled once weekly as part of defined treatment cycles that include scheduled rest periods. The oral capsule is recommended to be taken with some food.
Preparation Requirements The IV injection concentrate must be diluted immediately prior to use with compatible solutions (e.g., 0.9% Sodium Chloride) and administered as a short infusion over approximately 6 to 10 minutes.
Population-Specific Rules A dose reduction is mandated for patients with hepatic impairment based on serum bilirubin levels. For instance, a 50% reduction may be required for moderate impairment. No routine dose adjustment is specified for the IV form in cases of renal impairment.

Resulting Procedural Structure

The overall use protocol involves calculating the precise dose based on BSA, which is then subject to mandatory weekly modification based on laboratory results, particularly blood counts. This ensures the correct quantity is delivered according to the patient’s status. The protocol defines the method of delivery, requiring the IV solution to be diluted and infused over a specific time, while the oral capsule must be taken intact, with food.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Study Focus: Research Focus

Studies examined how the compound interacts with specific inflammation pathways. Research investigated the compound’s relationship with joint function, including evaluating outcomes related to disease activity compared to a placebo.


Clinical Trial Outcomes: Symptom and Function Evaluation

Outcomes from various clinical trials have been published, primarily focusing on individuals with moderate to severe conditions.

Pain and Stiffness

  • Three-Month Trials: In a three-month trial, some participants provided new data points for pain scores. The study examined outcomes for moderate-to-severe symptoms using a standardized pain index.
  • Morning Stiffness: Research explored outcomes related to the severity of morning stiffness.

Functionality and Quality of Life

  • Joint Function: Measures of physical function and daily activity were assessed over six months in an open-label study. This study evaluated data points for range of motion and overall mobility.
  • Quality of Life: Researchers used patient-reported questionnaires to evaluate the impact of the compound on general health, sleep patterns, and quality of life over the trial period.

Safety and Tolerability Profile

General Findings

Study participants included a range of individuals. The most frequently reported adverse events included nausea and headache.

Drug Interactions

A limited number of studies have specifically evaluated the potential for interaction when the compound is used with common non-steroidal anti-inflammatory drugs (NSAIDs). One study evaluated outcomes when this treatment was used alongside physiotherapy. Research collected data at the two-week mark after starting treatment.


Ongoing Research

Research has explored the use of the compound in newly diagnosed individuals. Further, studies are currently underway to examine the long-term effects of the compound, with a focus on potential cardiovascular and dermatological outcomes over a five-year period.

Frequently Asked Questions (FAQ)

Common questions about Vinorelbin (FAQ)


Q: How is Vinorelbin different from other similar medicines?

Regulatory documents describe Vinorelbin as a semi-synthetic vinca alkaloid that has been structurally modified compared to older drugs in the same class. Regulatory information suggests it may be more selective in its cellular action than other vinca alkaloids. This selectivity may be related to the drug's effect profile in clinical use.


Q: Is Vinorelbin safe for people with kidney problems?

According to official product information, no routine dose adjustment is specified for patients with renal (kidney) impairment when receiving the intravenous form. Dose adjustments are primarily mandated for hepatic (liver) impairment based on serum bilirubin levels, which is a measure of liver function.


Q: Can Vinorelbin interact with blood thinners?

Regulatory safety information lists thrombocytopenia (a low platelet count) as a potential adverse reaction of Vinorelbin. Since platelets are necessary for normal blood clotting, patients using medicines that affect clotting are typically monitored closely by their healthcare team.


Q: Does Vinorelbin cause nausea, and can it be managed?

Nausea and vomiting are listed in regulatory documents as very common adverse reactions. Official patient information indicates that patients are often prescribed and receive anti-emetic medications to help manage these common gastrointestinal effects during the treatment period.


Q: Can Vinorelbin cause changes to heart function?

The official safety profile has reported rare cardiovascular events. These include instances of tachycardia (fast heart rate) and thromboembolic events (blood clots) in some patients. However, some non-clinical studies found no effects on the cardiovascular system.


Q: Is Vinorelbin always given in a medical setting?

The way Vinorelbin is administered depends on the form used. The intravenous form must be prepared via dilution and given as a short infusion, which requires a medical setting. The oral capsule form, which is swallowed whole, is part of a weekly regimen overseen by the prescribing physician.


Q: What official documents describe who cannot use Vinorelbin?

The official rules and restrictions regarding who cannot use Vinorelbin are detailed in documents like the Prescribing Information (such as the FDA label) and the Summary of Product Characteristics (SmPC). These documents contain the formal warnings and contraindications sections.


Q: Can Vinorelbin be taken with food, or does it matter?

Official guidelines for the oral capsule form of Vinorelbin recommend that it be taken with some food. This instruction is based on official dosing and administration guidelines.


Q: Does Vinorelbin make you sensitive to the sun?

While not listed as a primary side effect, patient safety information typically advises individuals receiving this treatment to avoid unnecessary sun exposure. The guidance typically includes the use of sunscreen and protective clothing.


Q: What types of cancer is Vinorelbin used for?

Official documents indicate Vinorelbin is approved for use in certain patients with advanced non-small cell lung cancer (NSCLC).


Q: Is Vinorelbin used on its own or always with other drugs?

According to the official prescribing information, Vinorelbin is approved for use in two ways. It is described as being used both as a single agent and in combination with other chemotherapy drugs, such as cisplatin, for its approved indications.


Q: How long does Vinorelbin stay in your system?

Based on regulatory pharmacology data, the time it takes for the concentration of Vinorelbin to fall by half, known as the terminal half-life, averages between 27.7 and 43.6 hours in adults.


Q: Are there any long-term side effects associated with Vinorelbin?

The drug’s safety profile includes potential effects that may persist or emerge later, such as peripheral neuropathy (nerve damage). Monitoring for these effects may continue during and after the course of treatment.


Q: Is there anything I should avoid eating or drinking while on Vinorelbin?

Yes, official documentation specifically advises that Grapefruit or grapefruit juice should be avoided. This is because consuming grapefruit can affect how the medicine is broken down and processed (metabolized) in the body.


Q: Do you have to take Vinorelbin forever, or is it a short-term treatment?

Treatment with Vinorelbin is typically administered in defined treatment cycles as part of a set regimen. It is not generally described in official information as a permanent or lifelong medication.


Q: Is Vinorelbin used in palliative care?

Vinorelbin is indicated for advanced, unresectable cancers and has been studied and used in the setting of palliative therapy and active symptom control to manage disease progression and related symptoms in certain patient groups.


Q: What studies have been done on Vinorelbin for lung cancer?

The data supporting the drug’s use in advanced non-small cell lung cancer (NSCLC) comes from multiple controlled and uncontrolled clinical trials. These studies examined key outcomes such as median survival time and overall response rate in treated patients.


Q: Has Vinorelbin been studied for use in breast cancer?

Official information confirms that Vinorelbin has been licensed and studied in the treatment of advanced or metastatic breast cancer in certain regions globally.


Q: Are there any new research developments related to Vinorelbin?

Ongoing research developments include studies into metronomic dosing, which involves giving lower doses more frequently over time. Research is also examining its potential use in combination with newer targeted therapies.


Q: What do clinical trials say about the research evidence for Vinorelbin?

Clinical trial evidence examines the medicine's effectiveness through several key metrics. These metrics include median survival time, overall response rate, and progression-free survival in patients treated for its approved indications.


Q: Is Vinorelbin a common or rare type of treatment?

Vinorelbin is recognized internationally as an established treatment. It is included on the World Health Organization's List of Essential Medicines, indicating its important and established role in cancer therapy worldwide.


Q: Why is Vinorelbin sometimes given in cycles?

Vinorelbin targets rapidly dividing cells, and the cycle structure (weekly doses followed by rest periods) is designed to balance the drug's intended effect on cancer cells with the necessary recovery time for the body's healthy, fast-dividing cells, such as those in the bone marrow.


Q: What should I do if I get a fever while on Vinorelbin?

Because of the risk of neutropenia (low white blood cell count) and subsequent infection, official patient safety information advises that contacting your healthcare provider immediately is necessary if you experience a fever of 100.4°F (38°C) or higher, or chills.


Q: Are there any common mental or mood changes linked to Vinorelbin?

The official safety profile lists very common constitutional and neurologic effects such as asthenia (weakness) and fatigue. Specific common mental or mood disorders are not typically listed in the main adverse reaction tables.


Q: What is the difference between Navelbine and Vinorelbin?

Vinorelbin is the international non-proprietary name (generic name) for the active medicine. Navelbine is one of the various brand names under which the medicine is marketed and sold globally.


Q: Do people on Vinorelbin need to take special precautions around others?

Due to the risk of a low white blood cell count and subsequent infection, official patient-facing information notes that protective measures may be advised. This guidance typically references actions such as avoiding crowds and people known to be sick, and practicing frequent hand washing.


Q: Why are people with certain allergies advised not to use Vinorelbin?

Vinorelbin is formally contraindicated in patients with a known history of hypersensitivity (a severe allergic reaction) to vinorelbin itself. It is also advised against for those allergic to other similar medicines known as vinca alkaloids.

How should Vinorelbin be stored and disposed of?

How to Store and Dispose of Vinorelbine

Official regulatory guidelines mandate specific storage and disposal protocols for Vinorelbine (vinorelbine tartrate) due to its cytotoxic classification.

Storage Requirements

Product Form Temperature Range Environmental Protection
Injection Vials mathbf2 C to mathbf8 C (Refrigerated) Protect from light; Do not freeze
Oral Capsules Not exceeding mathbf25 C Protect from light and moisture

Both the injection and the oral capsules must be stored in their original packaging and must be kept out of the sight and reach of children.

Stability and Disposal

The injection vials have a limited stability of 72 hours if stored outside of refrigeration. Once diluted, the solution is typically stable for 24 hours. As a cytotoxic agent, Vinorelbine must not be discarded in household trash or wastewater. Disposal of all unused or expired medicine must follow special handling procedures and local regulations for cytotoxic waste.

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

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