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Molsidolat

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Molsidolat

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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.

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Overview of Molsidolat

Property Description
Active ingredient Molsidomine
Form Tablet (immediate-release and sustained-release)
Pharmacological class Vasodilator Agent, Antianginal Drug
General Purpose Reduction of cardiac workload, anti-ischemic effect
Origin Synthetic, Prodrug

Molsidolat: Identity and Pharmacological Classification

Molsidolat is the medicinal product containing the active ingredient Molsidomine, a synthetic compound that is clinically recognized as a Vasodilator Agent and an Antianginal Drug. Molsidomine is chemically classified as a sydnone imine derivative, setting it apart from other medication classes used in cardiovascular support.

The active ingredient is the International Nonproprietary Name (INN), and its mechanism is established in cardiovascular management. Importantly, Molsidomine’s activation pathway is distinct from that of traditional organic nitrates, making it suitable for managing patients requiring long-term treatment. This property helps mitigate the risk of drug tolerance often associated with prolonged use of other long-acting vasodilators.

Composition, Origin, and Pharmaceutical Forms

This medication is a single-entity product composed of Molsidomine and pharmaceutical excipients, supplied for oral administration as a tablet. Molsidomine functions as a prodrug, meaning it is inactive upon ingestion but is metabolized by the body into the active compound, linsidomine, before initiating its therapeutic action.

Tablets are available in various formulations, including both immediate-release and sustained-release types. This allows for tailored dosing schedules to maintain consistent levels of the active compound over the course of treatment.

General Purpose and Therapeutic Distinction

The general purpose of Molsidolat is to improve blood flow dynamics and reduce the overall workload placed on the heart. It achieves this benefit through potent vasodilation, causing the relaxation and widening of blood vessel walls.

This vasodilatory effect simultaneously reduces the resistance the heart must pump against, decreasing the afterload, and lessens the volume of blood returning to the heart, reducing the preload. By lowering both these primary cardiovascular pressures, Molsidolat provides a measurable anti-ischemic and protective benefit to the heart muscle.

Regulatory References

  1. NIH NLM DailyMed
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What side effects are possible with Molsidolat?

Possible Side Effects and Safety Information

Safety information regarding Molsidomine is based on regulatory documentation that classifies potential effects primarily by the affected physiological system and documented frequency. This description reflects the official regulatory safety framework and is not advisory.


Frequency-Classified Adverse Reactions

The most common adverse effect documented is headache, often reported to occur in approximately 10-25% of patients. Official documents note that this effect typically diminishes over time with continued use. The pharmacological action of Molsidomine is also commonly associated with effects on the Cardiovascular and Nervous Systems, manifesting as low blood pressure (hypotension), dizziness, and flushing.

Uncommon effects (occurring in fewer than 1% of patients) include nausea, vomiting, and reflex tachycardia (fast heartbeat). Rare safety concerns include effects on the Blood and Lymphatic System, such as thrombocytopenia (low blood platelet count), and hypersensitivity reactions.


Safety-Related Restrictions and Contraindications

Specific safety constraints are documented for Molsidomine. It is contraindicated and must not be used in individuals experiencing acute cardiac arrest or severe hypotension (markedly low blood pressure). Use is also contraindicated during lactation.

Drug Interaction Safety: The official label specifies a high-level safety risk regarding co-administration with PDE5 inhibitors (such as sildenafil), as the combined effect can significantly amplify the blood pressure-lowering action, potentially leading to severe cardiovascular events like myocardial infarction or fainting.

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Overdose and Emergency Response

Overdose and when to seek help for Molsidolat

An overdose of Molsidolat (Molsidomine) is officially documented as an exaggeration of the pharmacological effects of its potent vasodilatory action. Regulatory information confirms that the most common clinical manifestations are profound drops in blood pressure, termed severe hypotension, and an increase in heart rate, known as reflex tachycardia. Additional signs documented include severe headache, dizziness, and vertigo.

The primary life-threatening outcome described in regulatory labeling is the potential for uncorrected severe hypotension to progress to circulatory shock.


Mandated Emergency Action and Supportive Strategy

Governmental guidelines explicitly require you to seek immediate medical attention or contact emergency services whenever an overdose is suspected, particularly if signs of severe hypotension or shock are observed.

The official management plan is strictly symptomatic and supportive. There is no specific antidote known for this medication. Treatment involves immediate discontinuation of the drug, followed by professional monitoring. Procedural steps detailed in official documents include continuous monitoring of vital signs and placing the patient in a supine position (lying down) to assist in stabilizing blood pressure until clinical stability is achieved.

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Therapeutic Uses of Molsidolat

What Molsidolat Treats: Main Uses and Benefits

The medication is used in clinical domains where additional symptomatic support is needed in the treatment of Angina Pectoris. It is considered relevant in contexts marked by increased discomfort or tension, applied across domains where additional symptomatic support is needed in the management of conditions presenting with episodic or fluctuating manifestations.


Key Therapeutic Focus

This medication is commonly used to help with the prophylactic treatment of Angina Pectoris and is relevant in the management of Ischemic Heart Disease and certain manifestations of Chronic Heart Failure. It is relevant for easing symptoms associated with acute or episodic changes, and contributes to improved comfort during periods of heightened symptoms.

Quick Fact: Symptom Focus: Anginal Chest Discomfort

Molsidolat is commonly used to help with symptomatic support for chest pressure, tightness, or pain caused by inadequate blood flow to the heart muscle. It assists with maintaining functional stability when symptoms are more noticeable.

Regulatory References

  1. NIH MeSH Molsidomine
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Eligibility and Restrictions for Use

Who Can and Cannot Use Molsidolat?

Eligibility to use Molsidolat (Molsidomine) is defined by regulatory authorities based on specific clinical conditions and patient populations. The medicine is primarily intended for use in adults (age 18 and older) for its labeled indications.

Absolute Contraindications (Must Not Use)

Official labeling strictly contraindicates Molsidolat in several populations to prevent severe health risks:

  • Cardiovascular Instability: Patients with severe hypotension (very low blood pressure) or those experiencing acute circulatory failure (such as cardiogenic shock).
  • Drug Interaction: Concomitant use with Phosphodiesterase-5 (PDE5) inhibitors (e.g., sildenafil, tadalafil) is strictly prohibited.
  • Hypersensitivity: Individuals with a known hypersensitivity to molsidomine or any of the product's excipients.
  • Lactation: Use is contraindicated during breastfeeding.

Population and Organ Function Restrictions

Category Regulatory Status Key Limitation
Pediatric Use Not Recommended Use is not well-established in children and adolescents due to insufficient clinical data.
Pregnancy Not Recommended Use is generally advised against unless potential benefits outweigh risks.
Hepatic Impairment Restricted/Caution Caution is advised in severe liver impairment, and dose monitoring may be required due to the drug’s metabolism.
Renal Impairment Conditional Caution Lower starting doses may be recommended in major kidney insufficiency as a precaution.
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What should I know about interactions with other medicines?

The official regulatory profile for Molsidolat documents specific interaction patterns concerning other medicinal products and certain substances. Co-administration is formally contraindicated with Phosphodiesterase Type 5 (PDE5) Inhibitors, such as sildenafil and tadalafil. This prohibition is due to a severe pharmacodynamic potentiation that can lead to a sudden, marked reduction in blood pressure, as stated in prescribing information.

Beyond this fixed restriction, Molsidolat’s interaction profile involves an additive hypotensive effect with other antihypertensive drugs and vasodilators, including beta-blockers, ACE inhibitors, and calcium channel blockers. Combining the medicine with CNS Depressants may also increase the corresponding depressant effect.

Regulatory documents also note interactions that affect efficacy: Nonsteroidal Anti-inflammatory Drugs (NSAIDs) and Corticosteroids may reduce Molsidolat's effectiveness by opposing its vasodilatory action. Furthermore, alcohol consumption is documented to enhance the drug’s hypotensive properties. No mandatory timing-based separation rules are documented for other medicines. Caution is specifically noted for individuals with hepatic or renal impairment, as altered elimination may modify the overall interaction status.

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Mechanism of Action

How Molsidolat Works

The action of Molsidolat is governed by a Nitric Oxide ( NO) pathway that modulates vascular tone and systemic blood pressures.


Non-Enzymatic NO Release and cGMP Activation

Molsidomine is a prodrug that is metabolized in the liver into the active compound, Linsidomine ( SIN-1). Linsidomine spontaneously, and without requiring enzyme cofactors, releases NO gas. This NO rapidly diffuses into the vascular smooth muscle cells and activates the enzyme Soluble Guanylate Cyclase ( sGC). The resulting surge in cyclic Guanosine Monophosphate ( cGMP) is the core molecular step that triggers the smooth muscle to relax by regulating intracellular Calcium Ions ( Ca^2+).


Dual Hemodynamic Load Reduction

The relaxation of the vascular smooth muscle causes widespread vasodilation, which is most pronounced in the venous system. This increased venous capacity leads to the pooling of blood peripherally, thereby lowering the volume of blood returning to the heart ( preload). Simultaneously, the dilation of arteries reduces the resistance the heart must pump against ( afterload). This dual action results in a decrease of the mechanical effort required by the heart. This mechanism, due to its non-enzymatic NO release, is relevant in pathways where consistent pathway modulation is required, as this mechanism exhibits a pathway profile where the development of tolerance is generally mitigated compared to enzyme-dependent NO donors.

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Dosage and Administration Information

Molsidolat (Molsidomine): Official Administration Guidelines

This section details the procedural steps for use, focusing on the method of administration and excluding therapeutic, safety, or advisory content.


Administration Scope

Route of administration: The medication is administered via the oral route.

Dosing schedule: The standard oral dose for adults typically ranges from 1 to 4 mg, given two to four times a day. Dosages are individualized by a healthcare professional based on the specific condition and patient response, though daily doses rarely exceed 12 mg.

Timing in relation to meals: Molsidomine is generally taken consistently, either before or after meals, to maintain stable blood concentrations.

Preparation requirements: The tablet formulation should be swallowed whole and not chewed or crushed.

Age-group administration rules: Use in the paediatric population is generally not recommended or has not been established in clinical experience.

Missed-dose rules: Patients should follow their prescribing physician’s instructions regarding any deviations from the schedule.

Special procedural conditions: The medication's effects can be influenced by certain concomitant compounds. Abrupt discontinuation should be avoided.


Instruction Classifications (High-Level)

Classification Detail
Administration method type Oral (Tablet)
Frequency pattern Multiple daily doses (typically two to four times a day)
Standard Basis Established protocol for Molsidomine
Use-context constraints Must be swallowed whole, consistent timing is recommended

Resulting Procedural Structure

Step sequence:

  • Take the prescribed tablet dosage (e.g., 2 mg, 4 mg, or 8 mg strength) orally.
  • Swallow the tablet whole with water; do not chew or crush it.
  • Administer the dose consistently throughout the day (e.g., two to four times daily), maintaining the timing relative to meals (before or after) for stable blood levels.

Connection to the overall use protocol: The administration protocol for Molsidolat (Molsidomine) specifies the oral route for administration using tablets that must not be altered. The regimen is structured around multiple daily doses to maintain consistent plasma concentrations, and the adherence to the swallow whole instruction is intended to maintain the absorption profile. Dosage adjustments, especially for specific patient groups, are conducted by the prescriber.

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Recent Clinical Evidence

Molsidolat: Recent Clinical Evidence

Evidence in Stable Angina Pectoris

The primary evidence base for Molsidolat (also known as Molsidomine) consists of several randomized controlled trials (RCTs) focusing on its use in stable angina pectoris. These studies primarily assessed measurements of exercise capacity and the frequency of anginal attacks compared to placebo.

  • Studies showed that both acute and two-week treatment periods with Molsidolat were associated with improved exercise test parameters, including increased total work performed and duration of exercise, compared to placebo.
  • The use of Molsidolat has been noted to reduce the incidence of anginal attacks and the consumption of short-acting nitrate tablets by patients.

Biological Studies

Research has examined Molsidolat's effects on the vascular system. Molsidolat is a prodrug that is converted in the body to an active metabolite which releases nitric oxide (NO). This process is distinct from how organic nitrates function and is thought to reduce the likelihood of developing drug tolerance.

  • Laboratory models suggested that the release of nitric oxide leads to the relaxation of vascular smooth muscle cells (vasodilation), which contributes to a reduction in the heart's workload.

Sub-Populations and Study Scope

Clinical trials have investigated Molsidolat in various patient groups, including those with chronic heart failure and elderly patients with stable angina.

  • In a comparison of different formulations, the once-daily 16 mg formulation was noted to be not inferior to the twice-daily 8 mg formulation in terms of overall efficacy and safety profile.
  • Regarding safety, hypotension (low blood pressure) was reported more frequently with Molsidolat 16 mg compared to placebo in some studies. Safety monitoring has also included comparisons of adverse events between different Molsidolat dosing schedules.

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Frequently Asked Questions (FAQ)

Common questions about Molsidolat (FAQ)


Q: Is Molsidolat safe to use for people over the age of 75?

A: Clinical trials for Molsidolat have included studies involving elderly patients with stable angina. Official documents state that a mandatory adjustment is not required solely based on age, though individual circumstances may differ. However, caution is advised for any patient with organ impairment, such as kidney or liver issues.

Q: Does taking Molsidolat require special monitoring or blood work?

A: Official regulatory documents specifically advise caution for patients with hepatic (liver) or renal (kidney) impairment. Due to this, a prescribing healthcare professional may require monitoring of these organ functions to ensure the drug is eliminated safely and to allow for appropriate dosage adjustments.

Q: Is Molsidolat generally considered safe for long-term use?

A: Regulatory documents describe the mechanism of Molsidolat as offering a pathway for long-term treatment of chronic conditions. Its non-enzymatic action is associated with a lower risk of developing drug tolerance compared to organic nitrates. This characteristic makes it relevant for long-term treatment strategies.

Q: Does the research evidence show Molsidolat is effective for long-term symptom management?

A: Research evidence supporting Molsidolat demonstrates that it is associated with improving symptoms like anginal attacks (chest pain) and increasing exercise capacity. The evidence themes focus on measurements related to managing the chronic symptoms of cardiovascular conditions over time.

Q: Is it possible to be allergic to Molsidolat?

A: Yes. According to official product information, Molsidolat is contraindicated if a person has a known hypersensitivity (allergic reaction) to the active ingredient, molsidomine, or any of the non-active components (excipients) in the tablet.

Q: What is the process for discontinuing Molsidolat if it's no longer needed?

A: Regulatory documents explicitly state that the abrupt discontinuation of Molsidolat should be avoided. Any decision to stop or change treatment must be discussed with a prescribing healthcare professional.

Q: What is the purpose of Molsidolat if it isn't a cure for my condition?

A: Molsidolat's purpose is to manage symptoms and reduce stress on the heart. It functions as a vasodilator, meaning it widens blood vessels, thereby reducing the overall workload on the heart. This action provides an important anti-ischemic and protective benefit.

Q: What is the main difference between Molsidolat and other heart medicines I see advertised?

A: Molsidolat is officially classified as a Vasodilator Agent and Antianginal Drug. Its active component releases nitric oxide using a unique non-enzymatic process. This characteristic distinguishes it structurally and functionally from traditional organic nitrates and makes it relevant for long-term treatment strategies.

Q: Is Molsidolat a type of blood thinner?

A: No. Official documents classify Molsidolat as a Vasodilator Agent and an Antianginal Drug. It works by widening blood vessels, not by preventing blood clots, which is the action of medications known as blood thinners (anticoagulants or antiplatelet drugs).

Q: How quickly does Molsidolat usually start working after I take the first dose?

A: Pharmacokinetic studies indicate that the active metabolite of Molsidolat, Linsidomine, typically reaches its peak concentration in the blood within 1 to 2 hours after taking the tablet. This timing aligns with the concentration required for its action.

Q: Can Molsidolat cause changes in my blood pressure or heart rate?

A: Yes. The primary pharmacological action is vasodilation (widening of blood vessels), and this action can lead to low blood pressure (hypotension). Regulatory documents also list reflex tachycardia (an uncommonly occurring fast heartbeat) as a potential adverse effect.

Q: Are there any common foods or drinks I should avoid while using Molsidolat?

A: Official documents note that the co-administration of alcohol has been documented to enhance the hypotensive properties (blood pressure lowering effect) of Molsidolat. Use of alcohol must be considered in light of this documented interaction.

Q: Is it true that Molsidolat can cause headaches or flushing?

A: Yes. According to regulatory safety information, headache is the most common adverse effect documented. Flushing (a reddening or warmth of the skin) is also commonly associated with the drug’s vasodilatory action.

Q: Does Molsidolat interact with common pain relievers like ibuprofen or Tylenol?

A: Regulatory documents indicate that Nonsteroidal Anti-inflammatory Drugs (NSAIDs), which include ibuprofen, may reduce the effectiveness of Molsidolat. No specific interaction has been consistently documented for acetaminophen (Tylenol) in core regulatory texts.

Q: Can Molsidolat affect my ability to drive or operate machinery?

A: Molsidolat can cause adverse effects such as dizziness and hypotension (low blood pressure). Official documents indicate that these effects may potentially impair the ability to drive or operate machinery, particularly during the initial phase of treatment.

Q: How does Molsidolat compare to similar drugs used in Europe or other countries?

A: Molsidolat contains the active ingredient Molsidomine, which is used internationally. Official regulatory texts highlight its distinction from certain other vasodilators, such as organic nitrates, due to its unique, non-enzymatic nitric oxide release pathway. This property makes it relevant for consideration in long-term treatment.

Q: Is there a generic version of Molsidolat available?

A: The active ingredient in Molsidolat, Molsidomine, is available in many regions of the world as a generic formulation, in addition to brand-name products.

Q: Will Molsidolat make me feel tired or drowsy during the day?

A: While drowsiness is not a primary listed adverse effect, regulatory documents list dizziness and effects on the Nervous System. The presence of these effects suggests that some individuals may experience related feelings like fatigue or tiredness.

Q: What is the average time it takes to see the maximum benefit from Molsidolat?

A: The active substance typically reaches peak concentration in the blood within 1 to 2 hours. Clinical studies have demonstrated the anti-anginal effect can last for up to 6 hours after a single dose, showing the sustained benefit.

Q: Can a person develop a tolerance to the effects of Molsidolat over time?

A: Regulatory documents note that the drug's unique mechanism of action, involving non-enzymatic nitric oxide release, helps to mitigate the development of tolerance over time. This characteristic distinguishes it for use in long-term management.

Q: How is the safety profile of Molsidolat described in official regulatory reports?

A: Official reports classify the safety profile based on the frequency of documented adverse events. The profile indicates that the most common effects are headache, hypotension (low blood pressure), and flushing, with rare instances of more serious effects like thrombocytopenia.

Q: What is the half-life of Molsidolat, meaning how long does it stay in the body?

A: Molsidolat is a prodrug. Its active metabolite, Linsidomine, has a plasma half-life of approximately 1 to 2 hours. The drug's therapeutic duration of action is often noted to extend beyond this elimination time.

Q: Do any official sources provide information on Molsidolat and breastfeeding?

A: Yes. Official sources contain information on this relationship, stating that the use of Molsidolat is contraindicated (must not be used) during lactation (breastfeeding).

Q: Is the effectiveness of Molsidolat affected by my diet?

A: Official documents recommend taking Molsidolat consistently, either before or after meals, to help maintain stable concentrations in the blood. This consistency is key to its intended effectiveness.

Q: What kind of studies were conducted to get Molsidolat approved?

A: The approval of Molsidolat was supported by clinical evidence, including multiple randomized controlled trials (RCTs). These studies primarily assessed its anti-anginal effectiveness, its safety profile, and how it is processed by the body (pharmacokinetics).

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How should Molsidolat be stored and disposed of?

Official Storage and Handling

Storage Scope Official Requirement
Temperature Range Do not store above 30 C or Store below 25 C (limit varies by regulatory approval).
Environmental Protection Protect from light and moisture.
Handling Restrictions Do not refrigerate or freeze.
Packaging Requirement Store in the original package and keep the container tightly closed to maintain protection.

Disposal and Safety

Official regulatory documents require Molsidolat to be kept out of the sight and reach of children for safety.

Disposal instructions mandate that unused or expired tablets must be disposed of according to local pharmaceutical waste requirements. This means the product should not be discarded via household trash or wastewater, but taken to an approved collection site.

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

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