Nicoline

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Nicoline

Method of action: Antianginal, Cardiac Therapy

Treatment option: Seizure Prophylaxis

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 Nicoline

Property Description
Active Ingredient Nicorandil
Form Oral Tablet
Pharmacological Class Dual-Mechanism Vasodilator / Anti-anginal Agent
General Purpose To improve oxygen supply and reduce workload on the heart
Origin Synthetic Compound

Nicoline is a synthetic prescription medicine whose active component is Nicorandil, classified as a dual-mechanism vasodilator and an anti-anginal agent. This medicine is designated as a prescription-only medication, underscoring the necessity of medical oversight for its use. The active ingredient, Nicorandil, has a balanced action on the circulatory system.

Nicorandil is a chemically unique single-ingredient product, distinct from traditional nitrates, combining properties of a potassium channel opener and a nitrate-like compound. This dual functionality is the key differentiating feature, recognized for providing comprehensive vascular management. The drug is formulated as an oral tablet, the standard presentation for systemic cardiovascular therapy.

Nicorandil's Primary Function

The primary function of Nicoline is to help the heart muscle receive an adequate supply of oxygen by simultaneously reducing the strain on the heart and improving overall blood flow. Nicorandil is an agent that improves oxygen supply to the heart muscle. This effect is crucial in managing conditions where the heart's oxygen demands exceed its supply, allowing the cardiac muscle to operate more efficiently and lessen the potential for distress.

What side effects are possible with Nicoline?

Possible side effects and safety information

The official safety profile of Nicoline (Nicorandil) classifies potential adverse reactions by frequency and the body system affected, based strictly on government regulatory documents. The profile is characterized by frequent vasodilator-mediated effects and the documented risk of specific ulcerations.

Frequency-Classified Adverse Reactions

Adverse reactions are organized using standard regulatory frequency categories:

  • Very Common (ge 1/10): The most frequently reported effect is Headache, which is often noted as being more common during the first few days of treatment.
  • Common (ge 1/100 to < 1/10): These include Dizziness, Nausea, Vomiting, Cutaneous vasodilation (Flushing), and Increased heart rate (Tachycardia).
  • Rare and Very Rare (< 1/1,000): Less frequent reactions include Gastrointestinal ulcerations (e.g., stomatitis, intestinal ulcers), Liver disorders (such as hepatitis or jaundice), and Ocular ulcerations (e.g., corneal or conjunctival ulcerations).

Serious Adverse Reactions and Safety Notes

The regulatory label documents gastrointestinal and ocular ulcerations as rare but clinically significant adverse reactions, which may potentially lead to severe complications like perforation or fistula formation. These ulcerations can occur at any time during treatment, including years after initiation.

Regarding special populations, the official safety notes recommend initiating treatment for older adults at the lowest effective dose. Nicorandil is not recommended for use in the paediatric population due to insufficient safety data. The medicine's potential to cause hypotension and dizziness may influence the ability to drive or operate machinery.

Overdose and Emergency Response

Overdose and When to Seek Help

Nicotine poisoning is a serious, potentially deadly condition that requires immediate medical attention. Overdose can result from ingestion, inhalation, or skin contact, and accidental ingestion of even a small amount (e.g., 6 mg) may be lethal to a child.

Clinical Manifestations of Overdose

Nicotine poisoning typically presents in two phases. The initial stimulatory phase includes symptoms such as nausea, vomiting, excessive salivation, abdominal pain, increased heart rate (tachycardia), high blood pressure (hypertension), tremor, headache, dizziness, muscle fasciculations, and seizures.

This is followed by a depressor phase, which may include dangerously low blood pressure (hypotension), slow heart rate (bradycardia), profound muscle weakness or paralysis, central nervous system depression, coma, and life-threatening respiratory failure.

Required Emergency Actions

Seek immediate medical attention or call emergency services (911/112/999) or a certified Poison Control Center if an overdose is suspected or if symptoms of severe poisoning occur. Treatment is supportive, potentially including activated charcoal to limit absorption, benzodiazepines to control seizures, and advanced life support such as mechanical ventilation for respiratory failure. Using multiple nicotine products simultaneously significantly increases the risk of overdose.

Therapeutic Uses of Nicoline

What Nicoline Treats: Main Uses and Benefits

Nicoline is commonly used for the symptomatic treatment of stable angina pectoris, which is chest discomfort or pain associated with symptoms of reduced blood flow to the heart. This medication is applied in clinical settings where additional symptomatic support is needed and may be relevant for patients needing ongoing symptomatic management. The use of Nicoline is associated with managing symptoms related to two main areas: symptoms related to physical discomfort and symptoms that interfere with daily functioning.

By helping to moderate these manifestations, Nicoline may assist with maintaining functional stability during activity, and is commonly used to help improve day-to-day comfort during symptomatic periods. This long-term use may assist in managing the frequency and intensity of distressing episodes, assisting with maintaining functional stability and comfort when symptoms are more noticeable.

Quick Fact: Relief for Angina Symptoms Nicoline is relevant for easing symptoms related to physical discomfort and functional strain associated with recurrent chest symptoms.

Eligibility and Restrictions for Use

Nicoline (Nicorandil) is strictly a prescription-only medicine with eligibility defined by official regulatory bodies, primarily for adult use.

Category Regulatory Status
Approved Population Adults (18 years and over)
Pediatric Exclusion Not Recommended (Safety/Efficacy Not Established in children/adolescents)

Absolute Contraindications (Must Not Use)

Nicoline is formally contraindicated and must not be used in the following populations or clinical states, as defined by official labeling:

  • Patients with severe hypotension (very low blood pressure), shock (including cardiogenic shock), or left ventricular dysfunction with low filling pressure.
  • Patients with known hypersensitivity to Nicorandil or any excipients.
  • Patients taking Phosphodiesterase 5 (PDE5) inhibitors (e.g., sildenafil) or soluble Guanylate Cyclase (sGC) stimulators (e.g., riociguat).

Restricted and Conditional Use

  • Pregnancy/Lactation: Use is not recommended. It should only be used in pregnant women if the anticipated benefit is deemed essential.
  • Comorbidities: Caution is advised in patients with severe Heart Failure (NYHA Class III or IV) and in those with G6PD deficiency.

What should I know about interactions with other medicines?

The interaction profile for Nicoline (Nicorandil) is defined by official regulatory documentation, focusing on pharmacodynamic effects and severe hypotensive risk.

Contraindicated Drug Combinations

Co-administration with Phosphodiesterase Type 5 (PDE5) Inhibitors (e.g., sildenafil, tadalafil, vardenafil) is strictly contraindicated. This restriction is due to a severe, potentially life-threatening drop in blood pressure resulting from a synergistic pharmacodynamic interaction. The use of Soluble Guanylate Cyclase (sGC) Stimulators (e.g., riociguat) is also prohibited for the same reason.

Documented Pharmacodynamic Interactions

  • Blood Pressure Lowering: The effect of Nicoline may be potentiated when used with other antihypertensive agents, vasodilators, tricyclic antidepressants, or alcohol, potentially increasing the risk of hypotension.
  • Gastrointestinal Risk: Caution is advised with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), including acetylsalicylic acid (aspirin), and corticosteroids due to an officially documented increased risk for severe gastrointestinal complications, such as ulceration and hemorrhage.
  • Other Agents: Caution is noted for co-administration with dapoxetine due to possible reduced orthostatic tolerance.

Exposure and Administration Notes

Regulatory studies indicate that Nicorandil's metabolism is not significantly affected by specific enzyme modifiers like cimetidine or rifampicin. Taking Nicoline with food may delay the rate of absorption but does not affect the overall amount of the medicine absorbed. Furthermore, caution is advised when using Nicoline with products that may increase systemic potassium levels, especially in patients with moderate to severe renal impairment.

Mechanism of Action

The Dual Mechanism of Action

Nicorandil, the active component, operates through a dual pharmacodynamic mechanism focused on vascular smooth muscle and cardiac cells. The drug functions as an agonist to open ATP-sensitive Potassium Channels ( K ATP) in the sarcolemma of vascular smooth muscle. This K^+ efflux causes cellular hyperpolarization, which limits the influx of calcium ( Ca^2+) and promotes muscle relaxation.

Concurrently, Nicorandil acts as a nitric oxide (NO) donor, activating soluble Guanylate Cyclase (sGC). This initiates the cGMP signaling cascade, further contributing to smooth muscle relaxation.

Systemic and Cellular Consequences

The dual molecular action results in widespread vasodilation. The K ATP mechanism primarily affects resistance arteries, decreasing Afterload (ventricular resistance). The NO-mediated action causes venous dilation, reducing Preload (venricular volume), and also acts on coronary arteries, increasing local blood flow capacity. This modifies the relationship between myocardial oxygen requirement and delivery. Furthermore, Nicorandil activates mitochondrial K ATP channels within cardiac cells, which aids in the maintenance of cellular integrity during heightened metabolic demand.

Dosage and Administration Information

How Nicoline is Used

Nicoline, containing the active ingredient Nicorandil, is administered as a structured oral regimen for the long-term management of stable angina pectoris. The administration pattern follows established parameters for dosing, frequency, and preparation.


Official Administration Guidelines

Instruction Detail
Route of Administration The medication is intended for oral intake as a tablet.
Dosing Schedule The usual starting dose is 10 mg twice daily (bid). For patients susceptible to headache, 5 mg twice daily may be used initially. The standard maintenance range is 10 mg to 20 mg twice daily, with the dose adjusted (titrated) based on individual tolerance. The maximum generally permitted daily dose is 40 mg (20 mg bid).
Frequency and Timing The medicine is taken twice daily, preferably once in the morning and once in the evening, and administration is independent of food intake.
Preparation The tablet must be swallowed whole with liquid and should not be crushed or chewed. Tablets are scored and may be divided if a lower dose (e.g., 5 mg) is required.

Population-Specific Use Rules

In older adults, no specific dosage adjustment is required, although using the lowest effective dose is advised. Similarly, no special dose adjustment is necessary for patients with renal or hepatic impairment. Use of Nicoline is not recommended for children and adolescents under 18 years of age, as safety and efficacy data are not established.


Procedural Context

The required use pattern is a continuous, long-term therapeutic regimen. If a dose is missed, it should be taken as soon as it is remembered, unless it is nearly time for the next scheduled dose, in which case the user should skip the missed dose; doubling the dose to compensate is not permitted. The tablets should remain in the original blister pack until intake due to their sensitivity to moisture.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Nicoline

Evidence for use in Smoking Cessation

Most of the available evidence on Nicoline (Nicotine/Cytisinicline analogs) for smoking cessation comes from Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews or Meta-analyses. These studies have explored how abstinence rates were measured in adults who smoke. Researchers monitor outcomes related to measured abstinence rates, often verified through biochemical tests, as well as self-reported reduction in the number of cigarettes consumed daily over defined time intervals.

Studies report that abstinence outcomes were measured over periods that include short-term (a few weeks), intermediate (six months), and long-term (up to one year) follow-up. Findings describe patterns observed in the studies where measured outcomes for abstinence were numerically different between the groups observed. However, the specific reported success rates varied across different studies, potentially due to differences in the specific formulations examined, the duration of use, and the amount of behavioral support provided alongside the treatment.

Evidence for use in Chronic Stable Angina Pectoris

The evidence for Nicoline (Nicorandil analog) in conditions characterized by functional limitations, such as chronic stable angina pectorus, involves a mix of studies that explored the pharmacology and small- to moderate-sized clinical trials conducted predominantly outside of the US. These studies primarily focused on measuring physiological outcomes related to blood vessel function and how symptoms evolved in the observed populations. Researchers explored outcomes related to physical discomfort and daily functioning or activity level, such as changes in exercise tolerance.

Clinical reports describe measured changes in physical performance outcomes that were observed during the study period. Additionally, one large randomized trial examined the combined outcome of coronary heart disease death, non-fatal myocardial infarction, or unplanned hospital admission for cardiac chest pain. This research indicates patterns related to these measured outcomes, with one large study describing numerically different rates for this composite outcome between the groups receiving the study treatment and the placebo group.

Key Studies & References Clinical Practice Guideline: Treating Tobacco Use and Dependence

Frequently Asked Questions (FAQ)

Common questions about Nicoline (FAQ)

Q: Why is Nicoline sometimes called [alternative name/misspelling]?

A: Nicoline is a brand name for this medicine. Regulatory documents and official product information often refer to the medicine by its active ingredient, Nicorandil. Therefore, you may encounter the name Nicorandil used in authoritative sources, which can occasionally lead to confusion with local trade names.

Q: How quickly should Nicoline start working?

A: Studies on Nicoline's pharmacology show that maximum levels of the medicine in the blood are generally achieved relatively quickly, typically within 30 to 60 minutes after taking a dose. The rate at which the effects are observed can vary among individuals.

Q: What does 'onset of action' mean for Nicoline?

A: The term onset of action refers to the time it takes for a medicine to begin producing its effect in the body. Official information indicates that the concentration of Nicoline in the blood usually peaks within 30 to 60 minutes after intake. This period is typically associated with the medicine's initial systemic action.

Q: How long does the effect of Nicoline last after taking a dose?

A: The active substance in Nicoline has a short elimination half-life of about 1 hour. This short half-life is consistent with the need for twice-daily (bid) dosing as described in official guidance to maintain steady levels of the medicine.

Q: Is it safe to use Nicoline with [common vitamin or supplement]?

A: Official regulatory guidance advises caution when Nicoline is used alongside other products that may increase systemic potassium levels, particularly for individuals with kidney issues. General vitamins and other supplements are not specifically listed in the interaction profile. Patients are typically encouraged to discuss all concurrent products with a healthcare provider.

Q: Are there any foods or drinks I need to avoid while using Nicoline?

A: The administration of Nicoline is described as independent of food intake. However, official documents note that using Nicoline concurrently with alcohol may increase the blood pressure-lowering effect, potentially increasing the risk of hypotension.

Q: Why do official documents refer to Nicoline's use as 'adjunctive therapy'?

A: Official labeling may describe Nicoline as being indicated for patients who are not adequately managed by or cannot tolerate first-line antianginal therapies. Adjunctive therapy means the medicine is intended to be used as an addition to other standard treatments when those treatments alone are insufficient to manage the condition.

Q: Is Nicoline a controlled substance?

A: Nicoline is classified as a Prescription Only Medicine (POM) in many regions, meaning it requires a medical prescription. It is not generally classified as a Scheduled or controlled substance that requires specific government tracking for diversion control.

Q: Do I need a special monitoring test while taking Nicoline?

A: Regulatory information advises caution for certain risk factors, such as renal impairment or concurrent use of potassium-increasing products. A healthcare provider may choose to monitor specific laboratory markers based on these identified risk factors.

Q: What does 'contraindication' mean in relation to Nicoline?

A: A contraindication is a circumstance or condition that makes the use of Nicoline potentially harmful, meaning the medicine must not be used. For Nicoline, contraindications include pre-existing severe low blood pressure or the concurrent use of certain other medicines, such as PDE5 inhibitors.

Q: What are the known potential interactions with birth control pills and Nicoline?

A: Official regulatory documents do not list a specific drug-drug interaction between the active ingredient in Nicoline and hormonal contraceptives (birth control pills). As with any medication, the full interaction profile is typically reviewed by a healthcare provider.

Q: Can Nicoline be taken by people with diabetes?

A: Diabetes is not listed as a contraindication or special precaution in official regulatory documents. Clinical studies have suggested that the active substance in Nicoline shows no significant effects on insulin secretion, which may indicate it is generally tolerated by patients with diabetes.

Q: Is Nicoline generally well-tolerated?

A: Official information indicates that many patients tolerate the medicine well. The most frequent side effects include headache, dizziness, nausea, and vomiting. Regulatory labels state that the dosage may be adjusted (titrated) based on how well an individual tolerates the treatment.

Q: Are there known weight changes associated with taking Nicoline?

A: Regulatory patient information documents list weight loss and loss of appetite as possible adverse effects of Nicoline. These effects are generally not categorized among the most common side effects.

Q: Can Nicoline cause insomnia or sleep changes?

A: Official patient safety documents list both trouble sleeping (insomnia) and drowsiness as possible side effects that have been reported with Nicoline use.

Q: What is the standard duration of treatment with Nicoline?

A: Official product information usually describes treatment with Nicoline as a continuous and long-term therapeutic regimen for the management of stable angina pectoris. The precise duration of treatment is established based on individual patient needs.

Q: Does Nicoline need to be tapered off when stopping use?

A: Regulatory information notes that if rare, severe ulcerations develop, discontinuation of treatment is recommended. For all other instances of stopping, patients are generally encouraged to consult with a healthcare professional, as stopping treatment may result in the reemergence of symptoms.

Q: Can Nicoline affect my mood or mental health?

A: Regulatory patient information documents list nervousness and depression as possible side effects of Nicoline, which may relate to mood or mental health.

Q: Does Nicoline cause 'drug fatigue' over time?

A: Clinical literature notes that the dual mechanism of action of Nicoline, combining a potassium channel opener and an NO-donor, generally helps to prevent the development of drug tolerance, sometimes referred to as 'drug fatigue,' that is occasionally associated with single-acting nitrate medicines.

Q: Can Nicoline cause a rash or other skin reactions?

A: Yes, patient safety leaflets list rash, itching, or hives as possible signs of an allergic reaction to Nicoline. Furthermore, rare but serious non-allergic skin ulcers are also documented as a potential adverse reaction.

Q: Is Nicoline a habit-forming medicine?

A: Nicoline is classified as a prescription medicine and is not typically classified as a controlled substance for purposes of government tracking or high abuse risk.

Q: Is Nicoline a new medication?

A: The active ingredient in Nicoline, Nicorandil, was first approved for use in Japan in 1984, and later in Europe, making it a medication with a well-established history of clinical use.

Q: Does taking Nicoline require any specific lab work?

A: Regulatory information advises caution regarding patients with renal impairment or low blood potassium levels. Monitoring of specific laboratory markers may be undertaken by a healthcare professional based on individual risk factors.

Q: What should I do if a side effect of Nicoline does not go away?

A: Patient information generally advises that if any side effect, even one that is not serious, continues to be concerning, consultation with a doctor or pharmacist is advised. They can provide guidance and review the treatment plan.

How should Nicoline be stored and disposed of?

How to Store and Dispose of Nicorandil (Nicoline)

The official labeling provides strict requirements for storing and discarding Nicorandil tablets to maintain stability and ensure safety.

Storage Requirements

Condition Requirement Detail
Temperature Store below 25 C Protect from heat and do not store above 30 C.
Protection Protect from moisture Must be kept in the original blister pack until immediate use.
Stability 30-day limit Opened blister strips must be used within 30 days.

Disposal and Safety

All Nicorandil tablets must be kept out of the sight and reach of children for safety. Unused or expired medication should not be discarded in household waste or wastewater. The product must be returned to a pharmacy or designated collection point for disposal in accordance with local regulations via a pharmaceutical take-back scheme.

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

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