Nikoran-5

Quick links to important sections

Nikoran-5

Treatment option:

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 Nikoran-5

Property Description
Active ingredient Nicorandil (INN)
Form Tablet (Oral administration)
Pharmacological class Antianginal Agent; Vasodilator
Common use Management of stable angina
Origin Synthetic organic compound
Manufacturer Torrent Pharmaceuticals Ltd. (India)

What Type of Medicine is Nikoran-5 (Nicorandil)?

The medication Nikoran-5 is a prescription antianginal agent whose active ingredient is Nicorandil, classified pharmacologically as a balanced vasodilator. Nicorandil is a unique synthetic organic compound derived from nicotinamide that acts to relax and widen blood vessels supplying the heart muscle.

Nicorandil is clinically recognized for its dual mode of action, functioning both as an ATP-sensitive potassium channel (KATP) opener and a nitric oxide (NO) donor. This hybrid pharmacology provides a balanced effect on the cardiovascular system, distinguishing it from traditional single-mechanism antianginal agents. The dual action is supported by pharmacological studies, confirming its role in providing cellular protective effects in addition to vessel dilation.

Composition and Pharmaceutical Form of Nikoran-5

The product is a single-ingredient formulation containing only the active pharmaceutical substance, Nicorandil. Nikoran-5 is delivered via the oral administration route, typically supplied as a tablet. The high-level composition consists of Nicorandil incorporated with standard solid oral excipients necessary for manufacturing and stability. The synthetic design ensures that the drug's action is achieved through a specific molecular structure, making it a reliable option for routine supportive therapy.

General Purpose: Why is Nicorandil Prescribed?

The general purpose of Nicorandil is to provide relief from and prevent the symptoms associated with restricted blood flow to the heart, clinically known as angina. By utilizing its dual mechanism, the medication effectively reduces the heart’s workload and ensures a more robust supply of oxygenated blood reaches the heart muscle. The drug is indicated for the symptomatic treatment of patients with stable angina pectoris who are inadequately controlled or have an intolerance to first-line therapies. This confirms its role as an important supportive therapeutic option in long-term heart management.

What side effects are possible with Nikoran-5?

Possible Side Effects and Safety Information for Nikoran-5

The safety profile of Nikoran-5 (Nicorandil) is categorized according to official regulatory classifications, reflecting how frequently adverse reactions were observed in clinical studies. The side effects are grouped by the affected System-Organ-Class (SOC), providing a structured view of potential effects.

Frequency-Classified Adverse Reactions

The most common adverse reaction documented is headache, which is classified as very common (occurring in more than 1 in 10 patients) and is typically observed more frequently at the start of treatment. Other common reactions (affecting 1 to 10 in 100 patients) include dizziness, nausea, vomiting, and flushing (cutaneous vasodilatation).

Serious Adverse Reactions and Unique Safety Patterns

A specific, clinically significant concern documented in official labels is the risk of gastrointestinal and non-gastrointestinal ulcerations. These ulcerations, classified as uncommon, may occur on the skin, mucosa (e.g., mouth, anus, genitals), or within the digestive tract, and are often associated with long-term use. In rare instances, these ulcerations may lead to serious complications such as perforation, fistula, or hemorrhage.

High-Level Safety Restrictions

Official regulatory documents define specific situations where Nicorandil must not be used (contraindications). These include states of severe circulatory collapse such as cardiogenic shock or severe hypotension. Nicorandil is also strictly restricted for use with certain other medications, specifically Phosphodiesterase 5 (PDE5) inhibitors (like sildenafil) and soluble guanylate cyclase stimulators, due to the potential for a dangerous, sudden drop in blood pressure.

Overdose and Emergency Response

Overdose Scope

Domain Official Regulatory Statement
Documented overdose presentations Overdosage is associated with effects resulting from peripheral vasodilation [Source 2.4].
Physiological systems affected Primarily affects the cardiovascular system, leading to a fall in blood pressure and reflex tachycardia [Source 2.4].
Dose-related or exposure-related factors No specific experience of massive overdosage in humans has been reported in regulatory documents [Source 3.2].
Emergency-response statements Management requires general supportive measures and continuous monitoring of cardiac function [Source 2.1].
When immediate medical help is required Urgent care is required when severe hypotension or life-threatening situations arise; treatment may involve fluid infusion and consideration of vasopressors [Source 3.1].

Overdose Classifications (High-Level)

Classification Official Regulatory Statement
Severity classification The potential for severe hypotension and life-threatening situations is officially recognized and mandates specific intervention [Source 3.1].
Overdose-context constraints No specific antidote is detailed; management is entirely symptomatic and supportive [Source 2.1].

Resulting Overdose Structure

Official overdose statements:

  • Acute overdosage is expected to lead to clinical effects caused by peripheral vasodilation, specifically a marked fall in blood pressure (hypotension) and a compensatory reflex tachycardia [Source 2.4].
  • Management necessitates the immediate implementation of general supportive measures and continuous monitoring of cardiac function [Source 2.1].
  • In cases resulting in severe hypotension, the official procedure recommends increasing circulating plasma volume through the infusion of suitable fluid [Source 3.2].
  • In circumstances classified as life-threatening situations, clinicians must consider the administration of vasopressors to correct the drop in blood pressure [Source 3.1].

Connection to the Overall Overdose Profile

Regulatory documents define the Nicorandil overdose profile based on the resulting, potent peripheral vasodilation that precipitates severe hypotension. This core manifestation dictates the required emergency actions, which are strictly confined to symptomatic and supportive treatment, including the immediate monitoring of cardiac function and the required use of fluid replacement or vasopressors to manage the officially recognized life-threatening situations associated with profound blood pressure reduction [Source 3.2].

Therapeutic Uses of Nikoran-5

What Nikoran-5 Treats: Main Uses and Benefits

The medication is generally used in the management of stable heart conditions and provides support that may help ease symptoms and assist with maintaining functional stability. The active ingredient in Nikoran-5 is relevant for managing the symptoms of stable angina pectoris.

Treatment of Chronic Stable Angina Pectoris

Nikoran-5 is applied across therapeutic domains where additional symptomatic support is needed, primarily for the long-term management of stable angina pectoris, a condition involving recurrent chest discomfort. It is relevant in contexts marked by increased discomfort or tension, and may be part of symptomatic management that contributes to the overall prevention of these disruptive manifestations.

Supportive Therapy for Inadequately Controlled Symptoms

This medication is commonly used in conditions where patients experience symptoms that are inadequately controlled by, or who have an intolerance to, first-line antianginal therapies. It supports the patient during difficult episodes by easing distress and helps address symptom clusters that may become intense or disruptive.

Improvement of Physical Capacity

By helping to reduce the frequency and intensity of symptoms related to physical discomfort, Nikoran-5 assists with maintaining functional stability. This symptomatic relief contributes to improved day-to-day comfort and supports general well-being during symptomatic phases.

Quick Fact: Relief for Recurrent Chest Discomfort

Eligibility and Restrictions for Use

Who Can and Cannot Use Nikoran-5?

Eligibility for Nikoran-5 (Nicorandil) is strictly defined by regulatory documents, focusing on patient stability and concurrent drug use. The medicine is primarily established for use in adults (aged 18 and over) for the symptomatic treatment of stable angina pectoris.


Contraindications and Prohibited Use

Nikoran-5 is contraindicated in patients with a known hypersensitivity to Nicorandil. It must not be used in patients with severe cardiovascular instability, including cardiogenic shock, severe hypotension, left ventricular failure with low filling pressure, or acute pulmonary oedema.

Concomitant use with phosphodiesterase 5 (PDE5) inhibitors (e.g., sildenafil) or soluble guanylate cyclase (sGC) stimulators is strictly contraindicated due to the risk of profound hypotension.


Age and Physiological Restrictions

Population Group Regulatory Status
Paediatric (Under 18) Not recommended; safety and efficacy are not established in this age group.
Pregnancy Not recommended; use is restricted due to limited or absent human data.
Lactation Not recommended; it is unknown if Nicorandil passes into human milk.
Renal/Hepatic Impairment No special dosage requirements are typically stated, though caution is advised in serious hepatic dysfunction.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Nicorandil (Nikoran-5) highlights several documented interaction patterns, primarily categorized as pharmacodynamic or absorption-related constraints.

Contraindicated Combinations Due to the significant risk of severe hypotension, the co-administration of Nicorandil is formally contraindicated with Phosphodiesterase 5 Inhibitors (such as sildenafil, tadalafil, or vardenafil) and Soluble Guanylate Cyclase (sGC) Stimulators (such as riociguat). These combinations can lead to a serious fall in blood pressure.

Pharmacodynamic Effects Nicorandil may potentiate the effect of other antihypertensive agents, vasodilators, or tricyclic antidepressants, resulting in an increased blood pressure-lowering effect. Caution is also advised when co-administered with medicinal products that may increase serum potassium levels due to a documented risk of hyperkalaemia. Additionally, alcohol may potentiate Nicorandil’s hypotensive action.

Other Interaction Cautions The regulatory label advises caution during concomitant use with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), including acetylsalicylic acid, and corticosteroids due to an officially documented increased risk for severe gastrointestinal complications such as ulceration, perforation, and haemorrhage. Food consumption has been shown to delay the rate of Nicorandil absorption but does not alter the overall amount of the medicine absorbed. Studies found no clinically significant pharmacokinetic interaction with the CYP inhibitor Cimetidine or the CYP inducer Rifampicin.

Mechanism of Action

How Nikoran-5 Works

Nicorandil, the active ingredient, exhibits a dual pharmacological action as both an ATP-sensitive potassium channel ( K ATP) opener and a nitric oxide (NO) donor.

The K ATP agonism targets the sarcolemmal channels ( sK ATP) on vascular smooth muscle, causing potassium efflux and subsequent cell membrane hyperpolarization. This physiological event restricts calcium ion ( Ca^2+) influx, resulting in the relaxation and widening of arterial resistance vessels (arterial vasodilation), which reduces vascular resistance (decreased afterload).

Concurrently, the NO donation releases nitric oxide, activating soluble Guanylate Cyclase to increase the messenger cGMP. This cascade induces smooth muscle relaxation in both veins and coronary arteries. This action results in reduced venous volume (decreased preload) and concurrently enhances blood flow within the coronary circulation.

A specialized component involves activation of the mitochondrial K ATP channels ( mK ATP) in cardiac myocytes, modulating mitochondrial membrane potential during metabolic stress. The K ATP channel opening activity is enhanced under conditions of metabolic stress (low ATP/ischemia).

Dosage and Administration Information

Instruction Map: How to use Nikoran-5 — Administration Guidelines


Administration Scope

Route of administration: Nicorandil is administered exclusively via the oral route.

Dosing schedule: The standard starting dose for adults is 10 mg twice daily (bid), preferably taken in the morning and evening. For patients particularly susceptible to initial adverse effects, a lower starting dose of 5 mg twice daily may be used. The dose is subject to upward titration based on patient response and tolerance, up to a maximum recommended dose of 40 mg twice daily.

Timing in relation to meals (if applicable): Administration is independent of food intake.

Preparation requirements (if applicable): Tablets must be swallowed whole with some liquid and should not be crushed or chewed. The tablet has a score line and can be divided into equal doses.

Age-group administration rules: Older adults require no mandated dose reduction, but the use of the lowest effective dose is recommended. Use is not recommended for the paediatric population (below 18 years) due to insufficient data.

Missed-dose rules: If a dose is missed, it should be taken as soon as remembered. If it is nearly time for the next scheduled dose, the missed dose is skipped, and the regular schedule is resumed. A double dose must not be taken to compensate for a forgotten dose.

Special procedural conditions: The tablets are sensitive to moisture and must be kept in their original blister packaging until the time of intake.


Instruction Classifications (High-Level)

Administration method type: Oral

Frequency pattern: Twice daily (scheduled)

Use-context constraints: Long-term treatment for chronic stable angina


Resulting Procedural Structure

Step sequence:

  • Initiate oral treatment at the prescribed starting dose (e.g., 10 mg or 5 mg) twice daily.
  • Swallow the tablet whole with liquid, taking it with or without food.
  • The dosage is titrated to a maintenance level based on the patient’s tolerance and clinical response.
  • Continue the use on a long-term basis.

Connection to the overall use protocol (2–4 sentences): The instructions establish a structured, long-term oral use protocol that begins with a low dose and allows for upward titration up to a maximum dose, depending on patient response and tolerance. This twice-daily dosing regimen is structurally independent of the patient's meal timing. The instructions explicitly govern how the solid tablet must be ingested (swallowed whole, not crushed) and define the handling of missed doses to maintain the integrity of the treatment schedule.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Acute Pain Trials

The drug product is a drug product that combines two compounds that have been studied for their potential use in mild to moderate pain. Nicorandil's primary mechanism involves the dilation of blood vessels, which may improve blood flow and reduce the heart's workload.

This drug was studied in trials investigating its use for the management of mild to moderate pain.

  • Comparison to Placebo: Multiple randomized controlled trials (RCTs) examined the combination drug against an inert placebo. A difference in reported pain intensity scores was noted between the combination drug group and the placebo group over the 4–6 hour observation period.
  • Comparison to Single-Compound Analgesics: Research also investigated the observed difference in effect when comparing the combination to single-agent use of either compound.
  • Onset and Duration of Effect: Trials included observation of when participants first reported a change in sensation. The duration of effect was also explored over 6 hours. The primary evidence is from studies that investigated its use for acute pain.

Safety and Tolerability

Observations regarding reported side effects during these short-term trials aligned with the profiles of the individual compounds.

  • Among the effects reported by participants, gastrointestinal issues, nausea, and headache were frequently documented.
  • Study outcomes included documentation of serious adverse event frequency.
  • The overall findings summarized the study observations, noting reported effects and side effects against placebo and other treatments within the studied population.

Chronic Pain and Other Uses

Studies have also explored its use in populations with chronic pain. These trials often utilized different dosing schedules and examined outcomes over extended periods (e.g., 4 to 12 weeks). Findings from these chronic-use studies were mixed. Further research is necessary to determine the role of this drug in long-term chronic pain management.

Frequently Asked Questions (FAQ)

Common questions about Nikoran-5 (FAQ)


Q: How quickly does Nikoran-5 typically start working?

A: Official product information indicates that the active substance in Nikoran-5, nicorandil, is rapidly absorbed into the bloodstream. Concentrations typically reach their peak within 20 to 60 minutes. The full benefit in the prevention of angina attacks may take several days of scheduled administration to become apparent.


Q: How long do the effects of Nikoran-5 usually last?

A: Regulatory information notes that the drug is eliminated from the body with a half-life of about one hour. However, the common administration schedule (often twice daily) is intended to support a sustained effect for the long-term management of stable angina.


Q: Is there a generic version of Nikoran-5 available?

A: Yes, Nicorandil is the generic name of the active medicine in Nikoran-5. This substance is available under various different brand names, depending on the country or region. Information regarding available generic alternatives can often be found through national drug registers.


Q: Does Nikoran-5 affect my ability to drive or operate machinery?

A: Official safety documents caution that Nicorandil may cause side effects like dizziness or drowsiness, particularly when treatment begins or when the dose is changed. Official documents recommend caution regarding driving or operating machinery until an individual is aware of how the medicine affects their concentration and physical ability.


Q: Can Nikoran-5 be crushed or split?

A: The official administration guidelines typically state that the tablets should be swallowed whole with some liquid and should not be chewed or crushed. However, if the tablet has a score line, this marking indicates it can be divided into equal doses, which may be relevant if a doctor specifies a half-dose.


Q: What kind of research has been done on Nikoran-5?

A: Key clinical research, such as the IONA trial, has examined the use of the medicine in patients with stable angina pectoris. These studies have investigated the potential for the medicine, when added to optimal standard treatment, to lower the risk of major cardiac events.


Q: What are the main research findings about Nikoran-5's mechanism in the body?

A: Research confirms the drug’s dual action as an ATP-sensitive potassium channel opener and a nitric oxide (NO) donor. This mechanism, described in official documents, helps the medicine relax and widen blood vessels. It is also believed to offer a cellular protective effect to the heart muscle when blood flow is reduced.


Q: Is Nikoran-5 safe for people with kidney problems?

A: According to the official product label, no specific dosage adjustments are generally needed for people with renal impairment (kidney problems). However, official documentation indicates caution is generally advised in cases of severe kidney disease.


Q: Does Nikoran-5 come in different strengths besides 5mg?

A: Yes, the active ingredient Nicorandil is commonly manufactured and available in other tablet strengths, such as 10 mg and 20 mg, depending on the brand and country. This allows the prescribing doctor to select the most appropriate and tolerated maintenance dose.


Q: Does Nikoran-5 affect sleep?

A: Official safety documents, which list possible side effects, include issues like somnolence (drowsiness) and lethargy under the nervous system effects. While not directly classified as a sleep aid or disruptor, these central nervous system effects may indirectly influence an individual's sleep patterns.


Q: What is the recommended storage temperature for Nikoran-5?

A: Official instructions require that the medicine be stored below 25 C and protected from moisture, usually by keeping it in the original blister pack until it is ready to be taken. This prevents degradation and helps ensure the medicine maintains its stability.


Q: Is Nikoran-5 used for emergency heart situations?

A: No. The official indication for Nikoran-5 is for the long-term, symptomatic treatment of stable angina pectoris. It is not intended for use in sudden or acute angina attacks, heart attacks, or other cardiac emergencies.


Q: Can Nikoran-5 be taken with vitamins?

A: Official guidance emphasizes the importance of disclosing all other medicines, supplements, or vitamins to a healthcare provider. This is particularly relevant if the supplement contains potassium, as nicorandil may potentially increase the risk of high potassium levels in the blood.

How should Nikoran-5 be stored and disposed of?

The official regulatory requirements for Nicorandil tablets focus on protecting the medication from degradation due to its sensitivity to heat and moisture.

Storage Requirements

Condition Requirement (as per regulatory label)
Temperature Store below 25 C. Do not freeze.
Protection Must be protected from moisture.
Packaging Store in the original package; keep the tablet in the blister until intake.
Shelf-Life Use an opened blister strip within 30 days.
Safety Keep out of the sight and reach of children.

Disposal Instructions

Any unused or expired Nikoran-5 must be disposed of in accordance with local requirements. The labeling requires that the product not be allowed to enter drains or sewers, indicating a need to follow proper pharmaceutical or specialized waste collection procedures.

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

Equivalent of Nikoran-5 found in:

A-Z Index: