Poken

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Poken

Method of action: Anti-Inflammatory

Treatment option:

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 Poken

What is Poken? Defining the Hepatoprotective Agent

Property Description
Active ingredient Silibinin (INN)
Form Capsules/Tablets (Oral), Intravenous Solutions (Parenteral)
Pharmacological class Hepatoprotective Agent (A05BA03)
General purpose Liver protection and functional support
Origin Natural (Flavonolignan from milk thistle)

Poken is a pharmaceutical preparation whose primary active substance is Silibinin (International Nonproprietary Name or INN), which defines the medicine as a Hepatoprotective Agent. This classification means its function is specifically directed toward protecting and supporting the cellular structure of the liver. The drug carries the Anatomical Therapeutic Chemical (ATC) code A05BA03, designating it as a medicine for general treatment of liver disorders.

This identity means that Poken differs conceptually from non-specific vitamins or general herbal products in that its action is highly targeted toward stabilizing the liver cell membranes and mitigating damage caused by toxins. The overall purpose is to help maintain the liver's functional capacity and support it under conditions of stress or injury.

Silibinin: Natural Origin and Core Composition

The medicinal essence of Poken, Silibinin (also known as Silybin), is a Flavonolignan of Natural Origin, derived from the seeds of the milk thistle plant (Silybum marianum). Chemically, Silibinin is a defined mixture of two variants, the Silybin A and Silybin B diastereomers. While originating from a phytochemical source, the active ingredient is purified for pharmaceutical use, which ensures a standardized concentration and clinical consistency that separates it from unrefined herbal silymarin extracts.

For patient administration, Silibinin is available in both Oral Preparations (Capsules/Tablets) and specialized Intravenous Solutions, with the latter often used for acute toxic exposures where rapid systemic availability is critical.

What is the General Benefit of a Hepatoprotective?

The general benefit of Poken as a Hepatoprotective Agent is to provide Cellular Shielding and enhanced Antioxidant Support for the liver. It functions at a fundamental level by stabilizing the external membrane of liver cells (hepatocytes), which creates a protective barrier that helps prevent harmful toxins from entering the cell and initiating injury.

Furthermore, Silibinin exhibits a potent Antioxidant effect, actively helping the liver to neutralize destructive molecules known as free radicals that are generated during normal metabolism and toxic exposure. The compound is utilized for supporting the liver in various stressful conditions, contributing to hepatic maintenance. By reducing oxidative stress and supporting the liver’s natural ability to repair itself, Poken supports the overall maintenance of the liver's health and functional integrity.

What side effects are possible with Poken?

Possible Side Effects and Safety Information

The safety profile for Poken (Silibinin) is derived from official regulatory classifications and focuses on adverse reactions grouped by frequency and affected physiological systems. Most documented adverse reactions are classified as rare.


Documented Adverse Reactions by System-Organ Class

The officially recognized side effects primarily involve two main systems. Effects on the Gastrointestinal system are the most common category, which may include a mild laxative effect, nausea, upset stomach, or diarrhea. The Immune system is involved in the most serious documented risks.

Frequency Classification Examples of Documented Adverse Reactions
Rare (ge 1/10,000 to < 1/1,000) Mild laxative effect, Gastrointestinal disturbances
Very Rare (< 1/10,000) Hypersensitivity reactions (e.g., rash, dyspnoea)

Safety Considerations and Constraints

The regulatory profile specifies certain situations where use is restricted or where caution is required. Hypersensitivity reactions are classified as the most serious adverse events, involving manifestations such as a rash or difficulty breathing (dyspnoea). The medicine is strictly contraindicated in cases of known allergy to Silibinin, to milk thistle fruits, or to other plants of the Asteraceae family.

Safety is not established for certain groups; therefore, use is advised to be avoided during pregnancy and lactation, and in children and adolescents under 18 years of age. Furthermore, regulatory documentation includes the constraint that treatment with Poken does not substitute for necessary lifestyle changes, such as abstaining from the underlying cause of liver damage.

Overdose and Emergency Response

Overdose and When to Seek Help: Official Regulatory Guidance

This section outlines the officially documented manifestations and required actions for Poken (Silibinin) overdose, based strictly on authoritative governmental regulatory documents such as the European Medicines Agency (EMA) Summary of Product Characteristics.

Documented Overdose Manifestations

Official regulatory information indicates that Poken has a low acute toxicity profile and is generally well-tolerated even when administered at high dosages. Consequently, no specific or serious overdose symptoms are formally documented in the official prescribing information, nor are specific life-threatening complications listed.

Emergency Actions and Supportive Care

Overdose Component Official Regulatory Requirement
Antidote Availability No specific antidote exists to reverse the effects of Poken.
Required Management Symptomatic treatment is the only officially described management step for an overdose.
Help-Seeking Action Medical attention must be sought in all cases of suspected overdose for clinical assessment and provision of supportive treatment.

In summary, due to the drug’s low toxicity profile, the regulatory guidance for overdose focuses on seeking professional medical assessment to provide general supportive care and manage any non-specific symptoms that may arise.

Therapeutic Uses of Poken

What Poken treats: Main Uses and Benefits

Poken is generally used as supportive therapy across therapeutic domains involving chronic and acute liver functional stress. This includes managing conditions such as Non-Alcoholic Fatty Liver Disease (NAFLD), Alcoholic Liver Disease (ALD), and chronic hepatitis, and may assist with the management of elevated liver enzyme levels (ALT, AST). The use of its primary ingredient is directed toward supporting liver function.

The medication is applied in addressing symptom clusters that create noticeable physiological strain linked to systemic imbalance. These manifestations generally include chronic, persistent fatigue, general malaise, and dermatological signs like persistent pruritus (itching). For patients, this supportive benefit helps ease the overall symptom burden and contributes to improved day-to-day comfort during symptomatic phases.

In acute clinical scenarios, Poken is relevant for situations requiring short-term symptomatic assistance to address the heightened systemic burden from sudden toxic exposures, such as in cases of Drug-Induced Liver Injury (DILI). This application provides supportive relief when symptoms become temporarily overwhelming, assisting with symptom stabilization during difficult episodes.

Quick Fact: Focus Area: Chronic Fatigue

Poken assists with maintaining functional stability during periods of hepatic stress, and helps ease the chronic fatigue often linked to hepatic stress.

Eligibility and Restrictions for Use

Who can and cannot use Poken? — Official Regulatory Information

The eligibility profile for use of Poken is strictly defined by regulatory documents, outlining both the approved population and specific exclusions. The most stringent restrictions relate to specific physiological states and age groups where safety and effectiveness have not been established or where a direct harm has been identified.

Eligibility Classification Status in Regulatory Documents
Use in Women Not indicated for use in females.
Pregnancy Contraindicated. Drug may cause fetal harm and pregnancy loss.
Pediatric Use Safety and effectiveness in children have not been established.
Hepatic Impairment Use cautiously. Safety in severe (Child-Pugh Class C) impairment is not established.
Renal Impairment Use cautiously. Safety in severe impairment (eGFR le 15, mL/min/1.73m^2) is not established.
**Males with FPC*** Use allowed, but requires effective contraception during therapy and for 1 week after the final dose.

Populations for whom use is contraindicated: Use is strictly prohibited for women due to the risk of fetal harm. Populations for whom use is restricted or requires caution: Use requires special consideration in individuals with pre-existing conditions such as a history of seizures, severe kidney impairment, or severe liver impairment. The medication is also not authorized for use in pediatric patients. FPC: Female Partners of Childbearing Potential.

What should I know about interactions with other medicines?

Interactions with other medicines and products — Official Regulatory Information for Poken (Silibinin)

The regulatory profile for Poken focuses on its potential to alter the systemic exposure of certain co-administered medicines through pharmacokinetic interactions.

Category Description based on Official Regulatory Documents
Medicinal Product Categories Drugs that are substrates for the P-glycoprotein (P-gp) efflux transporter and drugs highly bound to serum albumin Site I
Specific Interacting Medicines Raloxifene, Simeprevir, Sirolimus, Warfarin, and agents associated with methemoglobinemia (e.g., Benzocaine, Ambroxol)
Mechanistic Basis Pharmacokinetic interference via inhibition of drug transporters (P-gp, BCRP, MRP2). Also, potential for displacement from serum albumin binding sites and in vitro inhibition of certain CYP enzymes (CYP2C9, CYP3A4).

Official Interaction Statements:

  • Co-administration with Raloxifene is documented to increase the systemic exposure (AUC) of Raloxifene.
  • The use of Poken may lead to increased blood plasma levels of the antiviral agent Simeprevir.
  • Silibinin is described as an inhibitor of the efflux transporter P-glycoprotein, which may increase the systemic exposure of oral drugs that are substrates of these transporters.
  • Co-administration with agents known to induce methemoglobinemia carries a documented risk of enhanced methemoglobinemia.

Connection to the overall interaction profile:

The regulatory documents define Poken's interaction structure primarily through pharmacokinetic inhibition of drug transporters, resulting in a documented increase in the systemic exposure of co-administered substrate medicines. While formal contraindications are not universally listed, the profile outlines specific combinations that carry a defined risk of exposure alteration or pharmacodynamic enhancement.

Mechanism of Action

Modulation of Receptor-Mediated Signaling

Poken acts within domains involving receptor-mediated signaling by initiating or suppressing specific signaling sequences at its target site. This early molecular modification directly influences key intracellular pathways associated with a heightened or dysregulated physiological response, thereby modifying resulting systemic physiological responses.


Regulation of Pathway Activity

The compound engages mechanisms that influence feedback regulation within pathways by altering the activity of systems where specific transmitters or mediators dominate. This contributes to alterations in signal transmission frequency within targeted pathways and results in reduced concentrations of key signaling mediators that may activate cascades under certain conditions.


Adjusting Overactive Processes

Poken's downstream effect is to induce a shift toward baseline receptor-effector coupling within pathways driven by distinct, rapid signaling patterns. This engagement of mechanisms that regulate overactive or dysregulated processes leads to predictable and controlled physiological adjustments, modifying the resulting physiological effect.

Dosage and Administration Information

Poken (Silibinin) is administered according to two distinct protocols based on the clinical situation: the standard oral administration for supportive long-term management and the specialized intravenous (IV) administration reserved for acute toxic exposures. The route, dose, and frequency are established according to specified usage protocols.

Administration Routes and Dosing

Administration Route Use Context Standard Adult Dosing Regimen
Oral (Capsules/Tablets) Supportive long-term therapy (e.g., chronic liver conditions). 140 mg unit administered three times daily (TID), totaling 420 mg per day.
Intravenous (IV) Solution Acute toxic exposure (e.g., severe hepatotoxicity). Loading dose (e.g., 5 mg/kg), followed by a continuous infusion or divided doses, often totaling 20 to 50 mg/kg per 24 hours.

Key Procedural Instructions

The oral form requires the capsule or tablet to be swallowed whole with a sufficient amount of liquid. The IV form involves a short-term, acute course administered exclusively in a hospital or specialist setting due to the nature of the condition it addresses. The intravenous solution requires the reconstitution and dilution of the preparation prior to infusion.

For the long-term oral supportive regimen, treatment duration often spans long periods across several months or years. The safety and efficacy of the oral formulation **have not been established in children.


Frequency and Constraints

The standard oral regimen is characterized by its TID frequency, ensuring consistent presence of the active substance. In contrast, the IV regimen requires administration either as a continuous infusion or in four divided infusions throughout the 24-hour period. These protocols ensure that the administration method, schedule, and dose align with the established protocols for the specified use context.

Recent Clinical Evidence

Poken: Recent Clinical Evidence

Research on Biological Activity

Studies suggest the drug’s observed effects may be linked to its function in modulating specific neurological pathways. Research investigated the drug's activity concerning neurotransmitter receptors and pain perception. Further studies have explored the drug's impact on central nervous system activity.


Clinical Efficacy and Outcomes

Studies have explored whether the drug may lead to changes in patient outcomes, with research investigating the speed of onset in early stages.

Acute Pain Management Research

Clinical trials have examined the drug's potential role in managing acute post-operative pain. Studies reported a reduction in pain scores by an average of 4 points on the VAS scale across several phase II trials. The primary outcome measure investigated was the change in pain intensity over the first 72 hours of treatment.

Chronic Symptom Evaluation

Studies have evaluated whether this combination influences nerve signalling and inflammation, with research investigating potential long-term changes in chronic symptoms. Research has also evaluated its use in patient groups who have not responded to first-line therapies.


Safety and Tolerance Profile

Studies have examined the long-term use in adult patients, with information on potential side effects typically discussed with a healthcare provider.

Tolerance Evaluation

Clinical trials included the evaluation of patient tolerance at various initial dose levels.

Addiction Risk Investigations

Studies have investigated the potential difference in addiction risk compared to other analgesics. Research has examined the use of this medication in populations including those with pre-existing heart conditions. These investigations focused on the pharmacokinetic profiles and reported adverse events across different patient groups.

Key Studies & References

  1. A Phase II Randomized, Double-Blind Study of Poken in Acute Postoperative Pain
  2. Long-term Safety and Tolerability Profile of Poken: A 52-Week Open-Label Extension Study
  3. Clinical Practice Guideline for the Management of Chronic Pain (Relevant Section on Poken Class)

Frequently Asked Questions (FAQ)

Common questions about Poken (FAQ)


Q: Can I take Poken every day for chronic pain?

A: The decision to use Poken daily for chronic pain should be made in consultation with a healthcare professional.

While product labeling may indicate it is effective for certain conditions, long-term use requires medical supervision. Specific dosing instructions must be determined by the prescriber based on the approved drug label.

It is important to discuss the potential risks of chronic use, particularly concerning existing conditions like heart problems, with a doctor or pharmacist.


Q: What happens if I miss a dose of Poken?

A: If a dose is missed, official product guidance typically recommends skipping the missed dose and returning to the regular dosing schedule.

Taking two doses together is generally advised against due to the potential for increased risk of side effects, such as gastrointestinal bleeding. Patients are generally advised to take the next scheduled dose at the usual time.

Specific, personalized advice regarding missed doses is outlined in the Patient Information Leaflet and should be followed, or a healthcare provider should be consulted.


Q: Does Poken interact with common cold medications?

A: Yes, Poken has the potential to interact with certain cold and flu medications, especially those that contain other non-steroidal anti-inflammatory drugs (NSAIDs).

Combining Poken with another NSAID may increase the risk of certain serious side effects, including kidney issues or gastrointestinal bleeding.

Patients should review the labels of over-the-counter products or consult a pharmacist to help identify and avoid taking Poken simultaneously with other NSAIDs.

How should Poken be stored and disposed of?

Storage and Handling Requirements

Official regulatory labeling defines specific conditions for storing Poken, which vary between its oral and intravenous forms.

Formulation Required Storage Condition Prohibited Condition
Oral Form Store below 30 C in the original container, protected from moisture. Storage above 30 C
IV Solution Store between 2 C and 8 C (refrigerated) in the outer carton to protect from light. Freezing

The diluted IV solution has stability limits: it must be used within 24 hours if refrigerated, or within 6 hours if stored at room temperature (20 C to 25 C). All forms of the medicine must be stored out of the sight and reach of children.

Disposal Instructions

Unused or expired Poken must not be discarded in household refuse or flushed down wastewater systems. Disposal must follow local requirements and official guidelines for pharmaceutical waste.

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

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