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Моночинкве

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Моночинкве

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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.

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Overview of Моночинкве

Quick Facts

Property Description
Active ingredient Isosorbide Mononitrate (ISMN)
Form Oral Tablet
Pharmacological class Organic Nitrate, Vasodilator
General purpose Reduces heart workload
Origin Synthetic Compound

1. Моночинкве: Definition and Pharmacological Classification

Моночинкве is a preparation whose identity is established by its active ingredient, the generic compound Isosorbide Mononitrate (ISMN). It is chemically defined as a synthetic organic nitrate and is functionally categorized as an antianginal drug within the wider group of vasodilators. This classification is clinically recognized for its primary action on the circulatory system, forming the basis of its general medical use. Моночинкве, as a specific brand containing ISMN, is typically a prescription-only medication (POM) intended for adult patients, distinguishing it from over-the-counter preparations.

2. Composition, Form, and General Purpose

The compound is utilized as a single active component and is most frequently available for oral intake as a tablet. This form is specifically characterized as a long-acting nitrate, a critical feature in its therapeutic identity. The general purpose of Моночинкве is to achieve systemic vasodilation, which lessens the functional demands on the heart. By reducing the volume of blood returning to the heart (preload) and decreasing the resistance against which the heart pumps (afterload), the medicine acts by effectively lowering the heart’s workload. This medicine is intended to provide sustained relief by reducing the energy required by the heart to function.

3. Key Distinctions of Isosorbide Mononitrate (ISMN)

Isosorbide Mononitrate is highly valued for its predictable absorption and high bioavailability, attributes that set it apart from other nitrate compounds that may undergo more complex metabolic processes. This reliable nature means that the desired vascular effects are consistently sustained over an extended period. This stability is a key differentiating factor that has been affirmed in clinical practice. The compound's predictable characteristics underpin its status as a robust long-acting nitrate used to ensure consistent, ongoing vascular support.

Regulatory References

  1. FDA-Approved Labeling for ISMN
  2. FDA Drug Labeling (DailyMed)
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What side effects are possible with Моночинкве?

Possible Side Effects and Safety Information

The safety profile for Моночинкве (Isosorbide Mononitrate) is officially documented by government regulatory bodies, classifying adverse reactions according to frequency and the affected body system. These effects primarily reflect the medicine's action as a vasodilator.

Classification Adverse Reaction Categories
Very Common Headache
Common Dizziness, Tachycardia, Hypotension, Flushing, Nausea, Vomiting
Uncommon Syncope (fainting), Circulatory collapse
Rare Allergic skin reactions, Hypersensitivity

Adverse reactions are grouped by System-Organ Classes, with the most frequently observed effects categorized under Nervous System Disorders (Headache, Dizziness) and Vascular Disorders (Hypotension, Flushing). The most frequent effect, headache, is noted in regulatory documents as occurring particularly at the start of treatment and typically lessening with continued administration.

Serious Adverse Reactions and Limitations

The official labeling documents the potential for serious adverse reactions, including circulatory collapse and severe hypotension. These events, while Uncommon, define a critical part of the overall safety assessment. The medicine is officially restricted from use in specific circumstances. A high-level safety constraint is the absolute contraindication for use with Phosphodiesterase type 5 (PDE5) inhibitors (such as sildenafil), due to the risk of life-threatening hypotension. Furthermore, caution is documented for use in individuals with severe hepatic impairment or severe renal impairment, as clearance may be affected.

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Overdose and Emergency Response

Overdose and when to seek help

Overdose with Моночинкве (Isosorbide Mononitrate) may lead to excessive vasodilatation, resulting in documented severe physiological instability. Clinical manifestations are characterized by profound hypotension, leading to significant venous pooling and markedly reduced cardiac output. Regulator-documented signs that require urgent attention include syncope, palpitations, and systemic effects such as vertigo, visual disturbances, and signs of increased intracranial pressure (e.g., persistent throbbing headache and confusion). Gastrointestinal disturbances, including colic and bloody diarrhea, are also listed presentations.

Emergency medical care must be sought immediately if any manifestations of severe overdose occur. The official regulatory approach for management is strictly symptomatic and supportive treatment, as no specific antidote is known. Initial mandated actions to restore central fluid volume include placing the patient in a recumbent position with passive elevation of the patient's legs and initiating intravenous infusion of normal saline or similar fluid. Furthermore, the regulatory guidance notes that invasive monitoring may be required for patients with pre-existing conditions such as renal disease or congestive heart failure following an overdose.

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Therapeutic Uses of Моночинкве

What Моночинкве treats: Main Uses and Benefits

The purpose of Моночинкве (Isosorbide Mononitrate) therapy is relevant for the long-term, prophylactic support of the heart, focusing on the reduction of symptoms associated with chronic cardiovascular conditions. It is specifically a maintenance medication, and is not used to abort an acute episode.

The medication is commonly used to manage chronic stable angina pectoris, to address effort-induced anginal symptoms, and may assist with maintaining control over manifestations of myocardial ischemia.

Managing Chronic Symptom Burden

This therapeutic domain is relevant for managing the primary condition, chronic stable angina pectoris, which is characterized by chest discomfort, pressure, or heaviness. The therapeutic approach aims to help reduce the frequency and overall severity of these predictable anginal episodes, which contributes to easing the chronic burden of symptoms. This sustained action is considered relevant for patients in routine daily management.

“The sustained effect of this medicine is considered relevant for helping maintain stability and contributing to easing the overall symptom load for patients with ongoing heart conditions.”

The medication is commonly used in clinical settings where symptoms related to physical discomfort interfere with daily functioning, such as effort-induced anginal symptoms. By providing continuous support, it may assist with maintaining functional stability and contributes to improved comfort during periods of heightened symptoms.


Quick Fact: Supportive Management for Chronic Angina
Primary Indication: Chronic Stable Angina Pectoris
Main Benefit: Aims to help reduce the frequency and severity of recurrent chest discomfort
Use Context: Long-term, scheduled maintenance therapy
Symptom Type: Predictable, effort-induced symptoms

Regulatory References

  1. NIH MedlinePlus Drug Information
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Eligibility and Restrictions for Use

Моночинкве (Isosorbide Mononitrate) is an organic nitrate, and official regulatory documents define clear populations for whom use is prohibited or requires special caution due to the risk of severe blood pressure drops.

Populations Who Must Not Use Моночинкве (Contraindicated)

Use of this medicine is absolutely contraindicated for patients under the following circumstances, according to government labeling:

  • Allergy/Hypersensitivity: Known allergy or severe hypersensitivity to isosorbide mononitrate, other nitrates, or nitrites.
  • Concomitant Drug Use: Taking any phosphodiesterase-5 (PDE-5) inhibitors (such as sildenafil, tadalafil, or vardenafil) or soluble guanylate cyclase (sGC) stimulators (such as riociguat). The combination of these drugs can cause life-threatening, severe hypotension.
  • Severe Hemodynamic States: Acute circulatory failure (shock), cardiogenic shock, and marked low blood pressure (systolic BP le 90 mm Hg).

Populations Requiring Special Consideration

The medicine is subject to caution or is not established for use in certain groups:

  • Pediatric Patients: Safety and effectiveness have not been established in this age group.
  • Elderly Patients: Use requires caution, as they may be more sensitive to the drug’s hypotensive effects.
  • Pregnancy/Lactation: Use during pregnancy is generally not established as safe unless clearly needed, and caution is advised during breastfeeding as it is unknown if the drug passes into human milk.
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What should I know about interactions with other medicines?

Interactions with other medicines and products

Contraindicated Combinations

The official interaction profile for Моночинкве (Isosorbide Mononitrate) is dominated by stringent pharmacodynamic restrictions. The medicine is absolutely contraindicated for co-administration with two specific classes of drugs due to the documented risk of severe, profound hypotension, syncope, or myocardial ischemia.

These prohibited combinations involve Phosphodiesterase Type-5 (PDE-5) Inhibitors (including sildenafil, tadalafil, and vardenafil) and Soluble Guanylate Cyclase (sGC) Stimulators (such as riociguat). Combining these agents is prohibited as it results in a life-threatening potentiation of the blood pressure-lowering effect.

Other Documented Interactions

The vasodilating effects of Моночинкве are officially described as being additive when used with other medicines that lower blood pressure, including many antihypertensives, calcium channel blockers, and general vasodilators. This additive effect can lead to an increased risk of marked symptomatic orthostatic hypotension.

An additive vasodilating effect is also confirmed in regulatory labeling for alcohol (ethanol) consumption, which can increase the likelihood of experiencing light-headedness. Furthermore, co-administration may increase the blood concentration of Dihydroergotamine, potentially enhancing its hypertensive effect. For patients undergoing hemodialysis, the medicine is noted to be significantly removed from the blood during the procedure.

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Mechanism of Action

The Nitric Oxide–cGMP Signaling Cascade

The mechanism begins as the drug acts as a source of Nitric Oxide (NO), a gaseous molecule that activates the enzyme soluble Guanylyl Cyclase (sGC) inside vascular smooth muscle cells. This action initiates the cGMP signaling cascade by increasing the production of the second messenger cyclic GMP, which ultimately lowers intracellular calcium ( Ca^2+) levels. The reduction in calcium initiates the physiological consequence of smooth muscle relaxation (vasodilation) in blood vessels.


Modulation of Cardiac Workload (Preload and Afterload)

The widespread vasodilation resulting from the cGMP cascade modulates the body's vascular tone. The mechanism predominantly affects the venous system, causing blood to pool in the periphery, which reduces the volume and pressure of blood returning to the heart (preload). Simultaneously, dilation of the arterial system lowers the overall resistance the heart must overcome to pump blood (afterload). These dual physiological effects reduce the total myocardial oxygen demand and alter the heart’s workload.


Mechanistic Constraints

The drug’s action is inherently slow due to the required molecular conversion and subsequent intracellular cascade, meaning the mechanism does not produce immediate physiological adjustments. Additionally, the mechanism is susceptible to tachyphylaxis (tolerance), which constrains its sustained mechanistic action if continuous exposure to the active compound is maintained.

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Dosage and Administration Information

How to Use Моночинкве

Моночинкве (Isosorbide Mononitrate) is administered exclusively via the oral route as a maintenance treatment, which dictates a precise daily schedule to ensure long-term effectiveness. The fundamental principle governing its use is the requirement for a scheduled drug-free interval each day to prevent the development of pharmacological tolerance.


Official Administration Guidelines

Administration Scope Procedural Details
Dosing Regimen Initial doses range from 5 mg to 60 mg depending on the form, with maintenance up to 120 mg once daily (Extended-Release, ER) or 20 mg twice daily (Immediate-Release, IR).
Frequency & Timing The ER form is taken once daily in the morning. The IR form is taken twice daily with doses separated by approximately seven hours (asymmetric schedule).
Preparation ER tablets must be swallowed whole and must not be crushed, chewed, or split to maintain the controlled-release mechanism.
Special Conditions The drug is for long-term prophylaxis and must not be used to treat an acute anginal episode. Discontinuation requires gradual tapering of the dose and frequency.

Administration for Specific Populations

Pediatric Patients

The safety and efficacy of Isosorbide Mononitrate have not been established for use in children.

Missed Dose Instructions

If a dose is missed, it should be taken as soon as remembered. However, if it is almost time for the next scheduled dose, the missed dose should be skipped; patients must not take a double dose to compensate. This instruction is vital to preserving the required asymmetric dosing schedule.

The overall use protocol requires strict adherence to this morning-based and time-separated administration to maintain the critical nitrate-free interval necessary for sustained antianginal effectiveness, defining its use as continuous, scheduled, and time-dependent.

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Recent Clinical Evidence

Evidence for the Prevention of Chronic Stable Angina Pectoris

The research exploring chronic stable angina pectoris primarily consists of short-term, randomized controlled trials (RCTs). These studies were conducted using methods designed to minimize bias, such as double-blind and placebo-controlled designs. This research examined the medicine's application in conditions characterized by predictable, effort-induced manifestations of physical discomfort. Studies explored outcomes reflecting daily functioning or activity level, such as the total duration of exercise and the time until the onset of anginal symptoms. Some research was evaluated in comparative studies, exploring how measured outcomes compared to placebo or other established therapies over defined time intervals. Evidence contributes to understanding symptom patterns, but research does not determine whether an individual will respond similarly, as study results reflect the specific conditions under which they were conducted.

Outcomes Measured in Clinical Trials

Research examined outcomes monitoring physiological strain or stress by measuring indicators like the time until certain changes (such as 1 mm ST-segment depression) appeared during exercise. Studies monitored patient-reported outcomes describing perceived discomfort, such as the reported frequency of anginal attacks and the use of rescue medication. Research highlights changes measured during the study period, which were often focused on episodic or acute changes.

Long-Term Studies and Durability of Effect

Research explored how the medicine's effects might evolve over extended periods of maintenance use. Data show patterns related to what is known as nitrate tolerance, where continuous exposure was observed in some studies to be associated with a diminished observed pattern over time. The research therefore explored strategies to study this pattern. The follow-up durations for many of the functional performance trials were limited, meaning long-term effects are not fully established.

Evidence in Specific Patient Populations

Моночинкве was evaluated in studies focusing on elderly patients (individuals aged 65 years and older) and in populations with certain degrees of renal or hepatic dysfunction. Research examined how the medicine was processed and eliminated from the body in these specific groups. Findings indicate that, for the studied populations, the body's processing of the medicine was observed to be comparable to that in younger, healthy adults.

What Remains Unclear or Under Study

The research landscape shows areas where certainty remains low or where data are still emerging. Follow-up durations were limited in many of the core controlled research studies. Studies observed outcomes related to the effects of stopping the medicine quickly; research describes patterns related to a potential for episodic or acute changes in symptom patterns upon rapid withdrawal. This research provides context but not individual predictions, and evidence highlights what is known — and what is still uncertain.

Key Studies & References Isosorbide Mononitrate Extended-Release Tablets, USP Rx only - DailyMed (FDA Labeling)

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Frequently Asked Questions (FAQ)

Common questions about Моночинкве (FAQ)

Q: How quickly should I feel the effect of Моночинкве after taking it?

A: According to official product information, the immediate-release tablet typically begins its antianginal activity about one hour after dosing. The peak effect has been observed from one to four hours after the tablet is taken in clinical studies. This medication is specifically not designed to provide immediate relief for sudden chest pain.

Q: How long does the effect of a Моночинкве pill last?

A: Studies on the extended-release formulation indicate that its antianginal effect can be maintained for at least 12 hours. The regimen for the immediate-release tablet is structured with a distinct interval between doses to support its intended antianginal effect.

Q: Does long-term use of Моночинкве cause tolerance?

A: Official information indicates that prolonged use of nitrates can lead to the development of pharmacological tolerance, meaning the medication may gradually lose some of its effectiveness. The prescribed dosing schedule usually includes a daily drug-free period to help the body restore the drug's action.

Q: Why is a 'drug-free interval' sometimes needed when taking Моночинкве?

A: A drug-free period is required as part of the daily dosing regimen to prevent pharmacological tolerance. Continuous exposure to the drug may reduce its efficacy over time. This scheduled break is designed to help maintain the medicine's effectiveness for the long-term prevention of angina.

Q: Can Моночинкве be crushed or split in half?

A: Official labeling for the extended-release tablets specifies that they must be swallowed whole. Breaking the tablet may compromise the controlled-release mechanism, which could alter how the medication is absorbed.

Q: Can I stop taking Моночинкве suddenly?

A: Abrupt discontinuation of the medicine is generally advised against by regulatory sources. To minimize the risk of a potential worsening of anginal symptoms (chest pain), the dose and frequency should be gradually reduced under appropriate guidance.

Q: What food or drinks should I avoid when taking Моночинкве?

A: Official product information emphasizes caution regarding consuming alcohol (ethanol). Alcohol has an additive effect, and consuming it while using this medication may increase the risk of low blood pressure. The absorption of the immediate-release tablet is not significantly affected by food.

Q: Does Моночинкве affect kidney function?

A: Studies found that the clearance rate and half-life were similar in patients with various degrees of renal (kidney) dysfunction compared to healthy individuals. Official product information advises caution for use in individuals with severe renal impairment.

Q: Can Моночинкве interact with herbal supplements?

A: Official drug labels detail contraindications with specific prescription drugs and list additive effects with alcohol. Official information suggests patients should inform their healthcare professional about all concomitant therapies, including any prescription and over-the-counter drugs, as well as herbal supplements.

Q: Does Моночинкве affect my energy levels?

A: Dizziness is listed as a common side effect of the medication. Weakness (or asthenia) has also been reported as an adverse reaction in clinical experience. Patients experiencing these effects should exercise caution when engaging in activities that require full alertness.

Q: Is Моночинкве the same as other 'nitro' drugs?

A: The medication belongs to the wider group of medicines known as organic nitrates, which all work by relaxing blood vessels. However, its active ingredient, Isosorbide Mononitrate, is a metabolically distinct compound from other nitrates, such as Isosorbide Dinitrate.

Q: What is the difference between Моночинкве and nitroglycerin tablets?

A: Official classifications categorize Моночинкве as a long-acting nitrate indicated for the long-term prevention of chest pain (angina). Nitroglycerin is a fast-acting nitrate that is used for the immediate or acute relief of existing chest pain episodes.

Q: Is Моночинкве primarily for prevention of heart attacks?

A: Official indications state that the medication is used for the prevention of angina pectoris (chest pain) due to coronary artery disease. It is not indicated for the treatment of an acute heart attack.

Q: Is there a generic version of Моночинкве available?

A: Yes, the active ingredient in this medication, isosorbide mononitrate, is widely available from various manufacturers as a generic drug.

Q: Does Моночинкве cause any changes in vision?

A: Blurred vision (and double vision or diplopia) has been reported as an adverse reaction by a very small percentage of patients in clinical trials. It is classified as an infrequent event, and its relation to the drug is uncertain.

Q: Does Моночинкве cause problems with my stomach?

A: Nausea and vomiting are listed in regulatory documents as common adverse reactions associated with the use of this medication. Other, less common digestive issues such as constipation or dry mouth have also been reported.

Q: What are the serious, but rare, side effects of Моночинкве?

A: Serious, though less common, adverse reactions documented in official labeling include marked symptomatic hypotension (severe low blood pressure), syncope (fainting), and circulatory collapse. In some cases, a worsening of angina has been reported, especially when accompanying nitrate-induced hypotension.

Q: How does the mechanism of action of Моночинкве differ from beta-blockers?

A: Моночинкве works as a vasodilator, promoting the relaxation of blood vessel walls to increase their diameter. Beta-blockers function differently, primarily by blocking the effects of adrenaline, which generally results in a slower heart rate and a direct reduction in the heart’s workload.

Q: How long does it take for Моночинкве to be cleared from the body?

A: Official pharmacokinetic data indicates that the elimination half-life for the immediate-release tablet is approximately 5 hours. About 93% of the administered dose is typically eliminated from the body within 48 hours.

Q: Does Моночинкве come in different strengths?

A: Yes, the active ingredient is manufactured in various dosage strengths. Immediate-release tablets are commonly available in 10 mg and 20 mg strengths, and extended-release tablets are typically available in 30 mg, 60 mg, and 120 mg strengths.

Q: Can women who are planning pregnancy use Моночинкве?

A: Official labeling states the medication should be used during pregnancy only if the potential benefit justifies the potential risk, as human data is limited. This means there is insufficient data to fully assess the risk of use during pregnancy.

Q: Is it possible to overdose on Моночинкве?

A: Regulatory documents describe that an overdose may occur, potentially resulting in signs of severe hypotension. These signs can include flushing, a throbbing headache, fainting (syncope), and circulatory collapse. Extreme overdose may also cause a condition called methemoglobinemia.

Q: Can children take Моночинкве for certain conditions?

A: Official product information and regulatory documents clearly state that the safety and effectiveness of this medication have not been established for use in pediatric patients (children).

Q: How does the body process Моночинкве?

A: According to pharmacokinetic studies, the medication is absorbed quickly and completely by the digestive system. It is not significantly affected by the liver's first-pass metabolism. The medicine is then processed in the liver and eliminated mainly through the urine.

Q: Is Моночинкве used for high blood pressure?

A: Its primary indication is for the prevention of angina (chest pain). While it causes vasodilation, it is not generally indicated as a primary treatment for high blood pressure alone.

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How should Моночинкве be stored and disposed of?

How to Store and Dispose of Моночинкве

Official regulatory information requires that Моночинкве (Isosorbide Mononitrate) be stored at Controlled Room Temperature (CRT), typically ranging from 15 C to 30 C. To maintain its stability, the medicine must be protected from excessive heat, moisture, and direct light, and the container must be kept tightly closed when not in use. It is strictly mandated that the product must not be frozen.

Required Handling and Disposal

The most important safety requirement is that the medication must be stored out of the sight and reach of children. Regarding disposal, outdated medicine must not be kept. Patients are officially instructed to consult with a pharmacist or healthcare professional for guidance on the proper method for discarding any unused or expired Моночинкве.

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

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