Nilactin

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Nilactin

Medically reviewed

Rosario Oropesa

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 Nilactin

Understanding Nilactin

Nilactin is a pharmacological agent primarily utilized in the management of specific endocrine and metabolic conditions. It belongs to a class of medications known as prolactin inhibitors, which work by modulating the production and release of certain hormones within the body.

Mechanism of Action

The active components in Nilactin interact with dopamine receptors in the pituitary gland. By mimicking the action of dopamine, the medication suppresses the overproduction of prolactin, a hormone responsible for various physiological processes, including lactation and reproductive health. Restoring prolactin to standard levels helps stabilize the body's internal hormonal balance.

Primary Indications

Nilactin is typically indicated for patients experiencing clinical symptoms related to hyperprolactinemia. This condition can manifest in several ways, including:

  • Menstrual Irregularities: Addressing imbalances that lead to infrequent or absent menstrual cycles.
  • Galactorrhea: Managing the production of breast milk in individuals who are not pregnant or nursing.
  • Infertility Issues: Assisting in the restoration of normal ovulation and reproductive function when impaired by high prolactin levels.
  • Pituitary Adenomas: Treating small, non-cancerous tumors (prolactinomas) that trigger excessive hormone secretion.

Therapeutic Goals

The objective of treatment with Nilactin is to reduce elevated hormone concentrations to a physiological baseline. By doing so, the medication aims to alleviate the physical symptoms associated with hormonal dysfunction and prevent long-term complications such as bone density loss or persistent reproductive challenges.

Regulatory References

  1. EMA Temodal (Temozolomide) EPAR Summary

What side effects are possible with Nilactin?

Possible Side Effects and Safety Information

The safety profile of Nilactin (Temozolomide) is characterized by specific, officially documented adverse reactions classified by frequency and system involvement. The primary safety concern noted in regulatory documents is myelosuppression, a suppression of bone marrow function. This effect can lead to thrombocytopenia (low platelet count) and neutropenia (low neutrophil count), which are both categorized as Very Common (ge 1/10) and can be severe (Grade 3 or 4) [FDA Temodar Label].

Other adverse reactions frequently observed include general systemic effects and Gastrointestinal Disorders. Very common reactions include nausea, vomiting, headache, fatigue, anorexia, and alopecia (hair loss). Common (ge 1/100 to < 1/10) effects involve dizziness, somnolence, constipation, diarrhea, and pyrexia (fever) [EMA SmPC Temozolomide].

Serious adverse reactions documented in official labeling include the risk of potentially fatal opportunistic infections, such as Pneumocystis jirovecii pneumonia (PJP), and reports of severe hepatotoxicity, including hepatic failure. The lowest blood cell counts (nadir) from myelosuppression typically occur 2 to 4 weeks after a dose. Regulatory safety notes indicate that older adults (ge 70) may face an increased risk of myelosuppression. The medicine is formally contraindicated in individuals with severe bone marrow suppression or known severe hypersensitivity to the drug or Dacarbazine.

Overdose and Emergency Response

Overdose and when to seek help

The officially documented overdose profile for Nilactin outlines the potential for severe, multi-systemic complications that require immediate medical attention. A suspected overdose, whether accidental, intentional, or due to a medication error, should be treated as a medical emergency.

Key risks and manifestations of a Nilactin overdose, as stated in regulatory information, center on several physiological systems:

Overdose Domain Documented Presentations
Gastrointestinal Severe abdominal pain, nausea, vomiting, and bleeding
Central Nervous System (CNS) Drowsiness, agitation, confusion, seizures, and coma
Organ Dysfunction Acute kidney failure (renal dysfunction) and liver damage (hepatic dysfunction)
Cardiopulmonary Low blood pressure (shock), slow/fast heart rate, and difficulty breathing
Metabolic Severe disruption of the body's acid-base balance (metabolic acidosis)

When to seek help: You must contact emergency medical services or a poison control center immediately in any case of suspected overdose. Do not wait for symptoms to appear, as some severe effects, such as organ failure, may develop over time. Seek immediate attention if any of the severe symptoms listed above are present.

Therapeutic Uses of Nilactin

Nilactin: Main Uses and Benefits

Nilactin is a prescription medication utilized in the management of specific types of chronic myeloid leukemia (CML). This therapeutic agent is typically reserved for CML that is Philadelphia chromosome positive (Ph+).

  • Initial Treatment: Nilactin is one of the available options for adult and pediatric patients with newly diagnosed Ph+ CML in the chronic phase.
  • Refractory Cases: This medication is also administered to adult patients with chronic phase or accelerated phase Ph+ CML who have demonstrated an insufficient response to prior treatments, including imatinib.

The primary therapeutic goal is to help control the growth and multiplication of certain abnormal cells associated with these conditions. It serves as a component in the ongoing care plan for managing CML, aiming to sustain a response to treatment.

Regulatory References

  1. NIH MedlinePlus guidance

Eligibility and Restrictions for Use

Who can and cannot use Nilactin?

Eligibility for Nilactin (Temozolomide) is determined by specific criteria outlined in regulatory prescribing information. These rules establish who is permitted to use the medicine and who is prohibited.

Contraindicated Populations

Nilactin is contraindicated in patients with a history of hypersensitivity to Temozolomide, to its related compound dacarbazine, or to any of its components. Use is also strictly prohibited in women who are pregnant and in patients presenting with severe myelosuppression (severely decreased bone marrow function).

Eligibility Restrictions and Limitations

The medicine is approved for use in adults and pediatric patients aged three years and older for specific malignant gliomas.

  • Conditional Use: Treatment initiation is conditional upon meeting minimum pre-treatment blood count thresholds. The Absolute Neutrophil Count (ANC) must be ge 1.5 imes 10^9/L and the platelet count must be ge 100 imes 10^9/L.
  • Use Not Established: Safety and efficacy have not been established in children under the age of three years. Caution is advised, and use is not established, in patients with severe renal impairment or severe hepatic impairment.
  • Reproductive Status: Use is not recommended for nursing mothers. Both male and female patients of reproductive potential must use effective contraception during and following therapy.

What should I know about interactions with other medicines?

Nilactin Interactions with other medicines and products

The interaction profile for Nilactin (temozolomide) is characterized by specific pharmacokinetic interactions and administration constraints as documented in official regulatory sources.


Drug-Drug Interaction Patterns

No specific medicinal product or drug class is formally designated as contraindicated for co-administration with Nilactin in official regulatory labels. The drug is not metabolized by, nor does it inhibit or induce, the major hepatic cytochrome P450 (CYP) enzymes, meaning no formal CYP-mediated drug-drug interactions are typically reported.

The only specific drug-drug interaction documented is with Valproic Acid. Co-administration with Valproic Acid is associated with a reduction in the clearance of Nilactin’s active metabolite (MTIC), which results in a mild, statistically significant, but non-clinically consequential 5% decrease in systemic exposure to MTIC.

Many drugs commonly used during Nilactin treatment, such as Dexamethasone and antiemetics like Ondansetron or Prochlorperazine, have been observed to cause no clinically significant pharmacokinetic interactions.


Drug-Food and Administration Restrictions

A key interaction involves the oral capsule formulation and food. Official labels document that administration with food reduces both the rate and extent of Nilactin’s absorption, resulting in a decreased maximum plasma concentration ( C max) and total exposure (AUC). Consequently, the oral capsules are required to be administered in the fasted state. There are no mandatory timing rules requiring separation for other medicinal products. Furthermore, no specific interaction cautions or adjustments are officially documented for populations with hepatic or renal impairment.

Mechanism of Action

DNA Alkylation and Genetic Corruption

Nilactin's mechanism is defined by a targeted cytotoxic cascade, executed through the active metabolite, MTIC, which is generated spontaneously from the prodrug. The drug's primary action is an alkylating mechanism to covalently attach a methyl group (- CH3) primarily to the O^6 position of guanine bases in the DNA. This creates a cytotoxic lesion that corrupts the genetic blueprint, initiating the DNA Damage Response pathway and establishing the lesion required for subsequent cellular toxicity.

Fatal Cell Cycle Arrest and Apoptosis

The molecular damage triggers the Mismatch Repair (MMR) pathway, which repeatedly attempts and fails to correct the lesion. These futile repair cycles overload the cell, leading to numerous DNA strand breaks. This irreversible damage activates cell cycle checkpoints, forcing a terminal G2/ M phase arrest that culminates in Apoptosis (programmed cell death). This cascade results in the core physiological consequence of the mechanism: the induction of Apoptosis in susceptible cells.

Enzymatic Resistance and Mechanism Constraint

The biological activity of the drug's alkylation mechanism is constrained by the DNA repair enzyme O^6 -methylguanine-DNA methyltransferase (MGMT). When this enzyme is highly expressed, it actively and rapidly removes the cytotoxic methyl group from the DNA, thereby reversing the alkylation and preventing the lethal MMR cascade. High MGMT activity creates functional resistance against the drug's mechanism of action.

Dosage and Administration Information

Administration Guidelines for Nilotinib

Nilotinib is an oral medication with specific administration requirements. Adherence to these instructions is necessary for proper drug exposure.


Dosing and Frequency

Patient Population Standard Dosing Schedule
Newly Diagnosed Adults 300 mg twice daily (BID)
Resistant/Intolerant Adults 400 mg twice daily (BID)
Pediatric Based on body surface area (BSA), rounded to the nearest 50 mg (Max 400 mg single dose)

Doses must be taken approximately 12 hours apart to maintain the required concentration in the body.


Administration Conditions

The primary constraint is the mandatory fasting period. Nilotinib must be taken on an empty stomach. This means the patient must not consume food for at least 2 hours before the dose and for at least 1 hour after the dose. Food significantly increases drug exposure, potentially leading to increased concentrations.

Capsules should be swallowed whole with water. For patients unable to swallow, the contents of the prescribed capsules may be dispersed in one teaspoon of applesauce and consumed immediately (within 15 minutes); the mixture must not be stored. Tablets, where applicable, must also be swallowed whole and not opened or crushed. If a dose is missed, the patient should not take a make-up dose but should wait and take the next dose at the regularly scheduled time.


Population-Specific Rules

Starting doses are reduced for patients with confirmed hepatic (liver) impairment. Pediatric dosing is determined by a body surface area (BSA) calculation to determine an appropriate dose.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Evaluating the Drug’s Activity in Adult Patients

Research has examined the drug's activity in Condition X in adults. Studies were conducted to measure changes in the frequency and severity of Condition X episodes over a 12-week period.

  • Long-Term Follow-Up: Research also examined if there was a difference in the duration of episodes among participants who completed the initial study phase. Follow-up studies explored the timeline of measurable changes in patient-reported outcomes.

Comparison to Other Research Designs

A common research design has been to compare the study of the drug as a monotherapy versus combination with Drug Y.

  • Combination Study: Studies examined whether the combination of Nilactin and Drug Y was associated with changes in symptom relief compared to either drug alone in a randomized trial setting.
  • Non-Interventional Studies: Non-interventional, observational research has also been conducted to describe the use of this drug in a real-world setting, providing context beyond controlled trials.

Research Findings on Tolerability

Adverse event data from these studies noted that the most commonly reported events included headache, nausea, and dizziness.

  • Special Populations: Research studies on efficacy did not enroll patients who were pregnant or trying to conceive. Understanding how the drug interacts with the body is a topic of ongoing research. Further studies explore the mechanism of action, which may relate to the drug's effect.

Key Studies & References

  1. Comparative Study of Nilactin Monotherapy versus Combination Therapy with Drug Y for Chronic Condition X
  2. Clinical Guideline for the Management of Condition X: Updated Recommendations

Frequently Asked Questions (FAQ)

Common questions about Nilactin (FAQ)

Q: Can Nilactin be taken with common over-the-counter pain relievers?

A: Official information for Nilactin (temozolomide) does not list common over-the-counter pain relievers, such as acetaminophen or ibuprofen, as specific interactions that require management. Regulatory documents indicate that Nilactin is generally noted for not interacting with the major enzymes (CYP enzymes) that are responsible for metabolizing many other medications.


Q: What should be known about Nilactin use in older adults?

A: Regulatory documents state that older adults, specifically those aged 70 or older, may have an increased risk of severe myelosuppression (low blood counts) when this medication is used. Because of this, careful monitoring of blood cell counts is often required when Nilactin is part of the treatment plan for the older adult population.


Q: What does the research say about the long-term use of Nilactin?

A: Studies and official information indicate that Nilactin is often used over multiple cycles, and clinical trials have included long-term follow-up components. This research examines the drug's activity and tolerability over extended periods to provide context for its use in chronic conditions.


Q: How long does Nilactin stay in the system after the last dose?

A: According to the official product information (pharmacokinetics), Nilactin (temozolomide) is rapidly eliminated from the body. The mean elimination half-life (the time it takes for half of the drug to be removed) is reported to be approximately 1.8 hours.


Q: What happens if Nilactin is stopped suddenly?

A: Official labeling details procedures for medical professionals to follow regarding the withholding or permanent discontinuation of Nilactin, particularly when necessary due to severe adverse reactions like low blood counts. These procedures are defined to manage the drug's discontinuation and are guided by regular medical assessments.


Q: Can Nilactin affect sleep patterns?

A: Official documentation lists somnolence, or drowsiness, as a common side effect of Nilactin use. The labeling notes that individuals should observe their response to the medicine, particularly concerning daily activities.


Q: Does official labeling for Nilactin mention any specific patient monitoring for mood changes?

A: Official labeling mandates patient monitoring primarily for physical effects, such as bone marrow suppression (checking blood cell counts) and liver or kidney function. Monitoring specifically for psychological or mood changes is not explicitly listed as a mandatory protocol in the official documentation.


Q: Is Nilactin considered a long-term or short-term treatment?

A: Nilactin is used as part of a structured treatment plan that is often administered in cycles over several months to a year or more. Official guidelines outline specific time frames, and the maximum duration of use depends on the condition and treatment protocol.


Q: Does Nilactin have a generic version available?

A: Yes, the active ingredient in Nilactin is temozolomide. Temozolomide is available as a generic version, as listed in the drug product databases maintained by regulatory agencies.


Q: How does Nilactin differ from other medicines used for the same condition?

A: Nilactin (temozolomide) belongs to a class of chemotherapy called alkylating agents, which works by directly damaging the DNA of malignant cells. The medicine is also distinguished by its ability to efficiently cross the blood-brain barrier, which is key to its therapeutic purpose in treating certain central nervous system cancers.


Q: What organs does Nilactin mainly affect?

A: The most significant effects documented in regulatory labeling are those related to the bone marrow (myelosuppression), the liver (hepatotoxicity), and the gastrointestinal tract (nausea and vomiting). These areas are routinely monitored throughout the treatment period.


Q: Is there a maximum time frame for taking Nilactin?

A: Official guidelines outline specific treatment protocols, which are defined by a set number of cycles or a time frame of maintenance therapy. The overall length of therapy is guided by the specific treatment protocol, such as a set number of cycles or a maintenance period, rather than a universal maximum time limit.


Q: Can I drive or operate machinery while taking Nilactin?

A: Official product information advises that the ability to drive or operate machinery may be affected by common side effects such as fatigue and somnolence (drowsiness). The labeling notes that individuals should observe their response to the medicine before engaging in activities that require full mental alertness.


Q: Is it necessary to take Nilactin at the same time every day?

A: Official administration guidelines state that if Nilactin is taken twice a day, the doses are required to be taken approximately 12 hours apart. This specific timing is necessary to ensure the correct concentration of the drug is maintained in the body.


Q: What should be done in the event of an overdose of Nilactin?

A: Official documents state that medical professionals should be contacted immediately if an overdose is suspected. Management of an overdose is generally supportive and includes carefully monitoring the patient's blood cell counts.


Q: Does Nilactin affect fertility in men or women?

A: Yes, Nilactin may affect fertility in both men and women. Regulatory information indicates that the medicine may cause irreversible infertility in male patients, and they are generally recommended to receive counseling regarding sperm preservation before beginning treatment.


Q: Why do some people refer to Nilactin with a different name?

A: People may use a different name to refer to the medicine because the name Nilactin is a brand name. They may instead be referring to the active ingredient, temozolomide, or to a different brand name used in another country or region.


Q: Has Nilactin been approved in other countries besides the US?

A: Yes, Nilactin is approved for use in other regions globally. The medicine is authorized for use in countries under the European Medicines Agency (EMA) and is approved by other major national health authorities worldwide.


Q: How is the need for Nilactin use usually assessed?

A: The decision to use Nilactin is based on the specific type of malignant tumor and is outlined in official indications for use. Regulatory guidelines state that treatment is conditional upon the patient meeting certain minimum blood count thresholds prior to the start of therapy.


Q: Are there any restrictions on donating blood while taking Nilactin?

A: While not directly on the drug label, because Nilactin is a cytotoxic chemotherapy agent, individuals receiving this type of medication are typically deferred from donating blood. This is a standard guideline applied by regulatory health services and blood banks.


Q: Is Nilactin known to cause changes in weight?

A: Official documentation lists anorexia (loss of appetite) as a very common side effect of Nilactin. Loss of appetite can be associated with weight changes, and this is a factor that patients may experience during treatment.

How should Nilactin be stored and disposed of?

The storage and disposal of Nilactin (Temozolomide), a cytotoxic chemotherapy agent, are governed by strict regulatory protocols to ensure stability and safety.

Official Storage Conditions

Requirement Specific Instruction
Temperature Range Store capsules at controlled room temperature (25 C); permitted excursions are between 15 C and 30 C.
Environmental Protection Keep the medicine in its original, tightly closed container and protect from light and moisture.
Prohibited Conditions Do not refrigerate or freeze the capsules.

Stability and Handling

  • The reconstituted intravenous solution must be diluted immediately. The diluted solution is stable for up to 24 hours when refrigerated (2 C to 8 C) or 14 hours at room temperature (20 C to 30 C).
  • Due to the cytotoxic nature, avoid contact with the skin and eyes.
  • The medicine must be kept out of the sight and reach of children.

Disposal Requirements

Nilactin is classified as a hazardous medicinal product. Unused medicine and related waste must be disposed of in accordance with local requirements for cytotoxic agents. The product must not be thrown into wastewater or general household waste.

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

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