Vastril

Quick links to important sections

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 Vastril

What is Vastril?

Vastril is a pharmaceutical formulation containing the active ingredient trimetazidine. It belongs to a class of medications known as metabolic agents, specifically categorized as a fatty acid oxidation inhibitor. Unlike traditional cardiovascular treatments that focus on altering hemodynamic factors such as heart rate or blood pressure, Vastril works at the cellular level to optimize how the heart uses energy.

Mechanism of Action

The primary function of Vastril is to protect the metabolic efficiency of cells exposed to hypoxia or ischemia. It achieves this by shifting the cardiac energy metabolism from fatty acid oxidation to glucose oxidation. Because glucose oxidation requires less oxygen to generate adenosine triphosphate (ATP) compared to fatty acid oxidation, the medication helps the heart maintain its functional capacity even when oxygen supply is diminished.

Clinical Applications

Vastril is primarily used in the long-term management of stable angina pectoris. It is typically prescribed for patients who remain symptomatic despite using standard therapies or for those who cannot tolerate primary treatments. By supporting cellular metabolism, it helps reduce the frequency of chest pain episodes and improves exercise tolerance.

Key aspects of its clinical profile include:

  • Metabolic Support: It preserves intracellular levels of ATP and phosphocreatine.
  • Cellular Protection: It helps maintain the integrity of cell membranes by preventing the accumulation of toxic metabolites during periods of low oxygen.
  • Hemodynamic Neutrality: It does not significantly alter heart rate or systemic blood pressure, making it a distinct therapeutic option in multi-drug regimens.

Regulatory References

  1. NIH: National Library of Medicine

What side effects are possible with Vastril?

Possible Side Effects and Safety Information

The official regulatory safety profile for Vastril (Lisinopril) classifies potential adverse reactions based on their frequency and the body system affected. These classifications are established by governmental health authorities based on clinical data.

Frequency-Classified Adverse Reactions

Side effects that are generally classified as common (occurring in 1% to <10% of patients) often include a dry, persistent cough, headache, dizziness, and hypotension (low blood pressure). Reactions classified as uncommon or rare include taste disturbance, mood alterations, and skin rashes.

Serious Adverse Reactions and Safety Constraints

The regulatory labels identify several clinically significant safety concerns. Angioedema, which involves rapid swelling of the face, tongue, glottis, or larynx, is a documented serious adverse reaction. For patients who are pregnant, the medication carries a mandatory warning regarding the risk of Fetal Toxicity if used during the second and third trimesters, often leading to required discontinuation upon detection of pregnancy. Cases of acute renal failure and rare instances of hepatic failure are also documented in official sources.

Population and Timing Considerations

Specific safety considerations are noted for certain populations. Patients with renal impairment face an increased risk of hyperkalemia and acute changes in kidney function. The risk of angioedema is officially documented as higher in Black patients compared to non-Black patients. Furthermore, effects like dizziness and hypotension are often reported with greater frequency following the initial dose or during dose escalation of the medicine.

Overdose and Emergency Response

The official regulatory profile for Vastril (Lisinopril) overdose is defined by an excessive extension of its primary effect, the most likely manifestation being profound hypotension (severely low blood pressure). Other documented presentations include bradycardia (slow heart rate), dizziness, palpitations, and tachycardia (rapid heart rate).

Overdose carries the risk of severe, life-threatening outcomes, including circulatory shock, acute renal failure, and significant hyperkalemia (high potassium levels). For any suspected overdose, emergency medical attention must be sought immediately. Urgent help is specifically required if the patient is symptomatic, hypotensive, or exhibits severe signs such as collapse, a seizure, or difficulty breathing.

Since no specific antidote is known, the management strategy is symptomatic and supportive. Actions documented in official prescribing information include placing the patient in the supine position and administering intravenous fluid infusion to raise blood pressure. For severe hypotension refractory to fluids, vasopressor therapy may be required. Furthermore, hemodialysis is documented as a procedure that effectively removes Lisinopril from the bloodstream. Symptomatic patients require hospitalization and observation for a minimum of 24 hours, with continuous monitoring of vital signs, serum electrolytes, and renal function to confirm stabilization.

Therapeutic Uses of Vastril

What Vastril Treats: Main Uses and Benefits

Vastril is commonly used for the chronic, daily control of essential hypertension (high blood pressure), which involves elevated pressure against the walls of the blood vessels. This sustained therapeutic management helps to reduce systemic cardiovascular strain, and may assist with lowering the risk of severe complications like stroke and heart attack in adults and children over six years of age.

The medication is applied in clinical scenarios involving heart failure to provide adjunctive support for the weakened heart muscle. It helps address related symptomatic patterns such as fluid overload and shortness of breath, which supports maintaining functional stability. Furthermore, it is considered relevant in hemodynamically stable patients after an acute heart attack. In addition to these primary cardiovascular uses, the medication is relevant in therapeutic domains focused on organ preservation for patients with diabetes or other chronic kidney conditions, specifically to reduce the leakage of protein (albuminuria) in the urine.

“The core purpose of this medication is to provide continuous, supportive relief that helps patients cope more steadily with chronic cardiovascular and systemic conditions.”

This supports general well-being during symptomatic phases and may assist with maintaining functional stability of the kidneys.


Quick Fact: Relief for Symptoms of Strain

Vastril provides supportive relief by helping to manage symptoms that create noticeable physiological strain and assisting with maintaining functional stability, which helps manage symptoms related to systemic imbalance.

Regulatory References

  1. NIH MedlinePlus overview on Lisinopril

Eligibility and Restrictions for Use

Eligibility for Vastril (Trimetazidine) — Official Regulatory Information

Vastril is indicated only for adult patients (aged 18 years and above). The official regulatory label explicitly defines populations who must not use the medicine and those who require strict limitations.

Classification Population/Condition
Contraindicated (Must Not Use) Severe Renal Impairment (creatinine clearance < 30 mL/min), Parkinson's disease, parkinsonian symptoms, tremors, restless leg syndrome, and other related movement disorders, Hypersensitivity to the drug substance or excipients.
Restricted/Conditional Use Moderate Renal Impairment (creatinine clearance 30-60 mL/min) and Elderly patients (over 75 years of age) require a reduced dose and special caution.
Not Recommended Children and adolescents (below 18 years) as safety and efficacy are not established; Pregnancy (use should be avoided as a precautionary measure); Breastfeeding (should not be used).

Eligibility is strictly limited to adults without these prohibiting conditions. The label specifies that the occurrence of movement disorders should lead to the definitive withdrawal of treatment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official interaction profile for Vastril (Trimetazidine) primarily focuses on pharmacodynamic additive effects and pharmacokinetic considerations related to its elimination pathway.

Pharmacodynamic Interactions

Regulatory documentation highlights a potential interaction involving additive effects that may increase patient risk:

Interacting Product Category Official Concern
Antihypertensive Treatments Increased risk of falls or gait instability, which may be related to hypotensive effects.

Pharmacokinetic Profile and Elimination

Vastril is known to be minimally metabolized; consequently, official regulatory labeling documents generally do not list clinically relevant interactions involving CYP enzymes or drug transporters (e.g., P-gp, OATP, BCRP).

However, the drug's primary reliance on renal clearance creates important population-specific pharmacokinetic constraints:

Population/Condition Interaction Context
Moderate Renal Impairment Significantly increased Vastril exposure is documented due to reduced clearance.
Elderly Patients (over 75) Potential for increased Vastril exposure due to age-related decline in renal function.

Contraindications and Administration

No specific drug-drug combinations are listed as absolutely contraindicated in the interaction sections of regulatory labels. The official documents do not impose requirements for timing separation between Vastril and other substances.

Mechanism of Action

Vastril's mechanism of action centers on its role as a selective modulator targeting defined receptor systems within key regulatory pathways. This primary interaction involves direct binding to the receptor, thereby altering the affinity and binding activity of endogenous signaling molecules. This engagement initiates a specific mechanistic sequence at the cellular level.

Following receptor interaction, the drug operates within intracellular signal transduction cascades. It modifies the flow of information along second messenger pathways, which leads to the suppression of excessive upstream mediator activity. This action modulates the pathway output, preventing signal over-amplification within the cell.

The drug's influence extends to central or peripheral regulatory systems by engaging mechanisms that govern feedback regulation. By altering these feedback dynamics, Vastril directly influences the adjustment of pathway activity toward a state of reduced output, providing the mechanistic basis for its overall pharmacological action.

Dosage and Administration Information

Vastril is an orally administered medication available as a tablet in multiple strengths, from 2.5 mg up to 40 mg. The standard protocol for its use is a single daily dose, which may be taken with or without food for convenience in administration. Taking the dose at approximately the same time each day is the approach for ensuring consistent exposure.

The usage is defined by condition-specific initiation and slow titration. The starting dose for routine adult hypertension is typically 10 mg once daily. However, for more sensitive conditions like heart failure, a lower initial dose, generally 2.5 mg to 5 mg once daily, is required to begin treatment. The dose is then gradually increased (titrated) at intervals, often over a period of one to four weeks, until the daily maintenance range (commonly 20 mg to 40 mg) is reached.


Administration Context Standard Administration
Renal Impairment Requires a mandatory reduction in the initial dose; the starting quantity is potentially halved for moderate kidney function decline.
Pediatric Use (ge 6 years) Dosing is calculated by body weight ( 0.07 mg/kg once daily) and must not exceed an initial dose of 5 mg.
Treatment Duration Use is chronic for long-term conditions, but a minimum course of six weeks is required post-acute heart attack.

These instructions define the standardized approach to using the medicine.

Recent Clinical Evidence

Research evidence / Overview of Studies for Vastril

Evidence for Use in Essential Hypertension (High Blood Pressure)

The research base for the active ingredient in Vastril, Lisinopril, for essential hypertension (high blood pressure) includes large-scale Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews. These studies examined how blood pressure measurements were observed to change over time in diverse groups of adults, and studies monitored outcomes like cardiovascular events and All-cause Mortality. Findings describe patterns observed in the studies where studies measured lower blood pressure readings when patients were observed in defined time intervals. Comparative evidence is insufficient in some instances where the active ingredient is compared directly to every other individual medicine in its class.


Evidence for Use in Heart Failure

For patients with chronic heart failure, the evidence related to this class of medication was gathered through large, prospective Randomized Controlled Trials. The key outcomes monitored involved tracking All-cause Mortality and Hospitalization due to heart failure, which are outcomes monitoring physiological strain or stress. Findings describe patterns observed in the studies where data show patterns related to fewer death events and hospitalizations associated with the medication compared to controls over extended periods.


Evidence for Use After an Acute Heart Attack

Studies exploring Vastril's use following an acute heart attack involve large-scale Randomized Controlled Trials that research examined the outcomes associated with early initiation of the ACE inhibitor class. The trials' data show patterns related to the frequency of death events and subsequent cardiovascular complications when therapy was observed in hemodynamically stable patients who started soon after their event. However, the results apply only to the populations studied, and limited information for long-term outcomes exists for patients who did not begin treatment within the initial 24 hours.


Evidence for Outcomes Related to Organ Function

Vastril was evaluated in therapeutic domains focusing on outcomes related to organ function, particularly for patients with conditions like diabetic nephropathy. The main outcomes monitored were changes in Albuminuria (protein leakage in the urine) and the rate of decline in Kidney Function measurements. Longitudinal tracking research highlighted patterns of slowed progression in certain kidney function measurements compared to control groups. There is limited information for long-term outcomes related to the absolute prevention of progression to end-stage renal disease (ESRD) across all patient types.


What Research Gaps and Uncertainties Exist

While an extensive body of evidence exists, the scientific literature highlights areas where certainty remains low or where research is ongoing. For instance, subgroup findings rely on limited data when isolating certain high-risk groups, and follow-up durations were limited in some trials, particularly those focusing on short-term symptom changes. The results apply only to the populations studied and do not provide definitive predictions for every individual.

Key Studies & References

  1. Lisinopril - StatPearls (NCBI Bookshelf)
  2. Lisinopril: MedlinePlus Drug Information

Frequently Asked Questions (FAQ)

Common questions about Vastril (FAQ)


Q: Does taking Vastril commonly cause feelings of drowsiness or sleepiness?

A: Official documents describe drowsiness, or somnolence, as an uncommon side effect of Vastril. More commonly reported is dizziness, which may sometimes lead to a feeling of lightheadedness or fatigue. If these effects are experienced, official information advises caution regarding activities requiring full alertness.

Q: How long can the sedative effects or drowsiness from Vastril be expected to last?

A: The blood pressure-lowering effect of Vastril is designed to last for 24 hours. While the duration of any individual side effect can vary, the effects of dizziness or lightheadedness, if they occur, are often tied to the medication's peak effect. These effects may be most noticeable when first starting the medication or increasing the dose.

Q: Can Vastril cause unexpected side effects such as dizziness or mild confusion?

A: Dizziness is described in the official product information as a commonly reported side effect. Confusion has also been reported as a potential symptom, which can sometimes be related to the drug's effect on blood pressure or kidney function. These effects are important to bring to the attention of a healthcare provider.

Q: Is it true that Vastril can sometimes cause a headache or blurred vision?

A: Yes, a headache is listed as a commonly reported adverse reaction in clinical trial data. Blurred vision is also noted as a possible adverse reaction in regulatory safety profiles. These effects are typically associated with the initial phase of treatment.

Q: What are the general signs of a possible allergic reaction to Vastril that require urgent attention?

A: The most serious allergic reaction associated with this medication is angioedema, a condition involving rapid swelling. Signs include swelling of the face, lips, tongue, or throat, or any difficulty with breathing or swallowing. Regulatory warnings emphasize the need for urgent medical evaluation if these signs appear.

Q: Are there specific types of heart medications that should not be combined with Vastril?

A: Official documentation describes specific medications, such as those containing Aliskiren or Sacubitril, that require avoidance due to the risks of severe adverse reactions, including heightened risks of hypotension and angioedema. Caution is also advised when Vastril is used in combination with other general antihypertensive treatments.

Q: Is Vastril intended for short-term use for anxiety, or can it be taken long-term?

A: For its approved indications, such as high blood pressure and heart failure, Vastril is intended for chronic, long-term therapy. The medication’s blood pressure-lowering effects are maintained when taken over extended periods, according to official regulatory data.

Q: Is Vastril contraindicated for individuals with certain pre-existing heart conditions?

A: Vastril is not generally contraindicated for all heart conditions, as it is a standard treatment for heart failure. However, the medication can lead to elevated blood potassium levels (hyperkalemia). Official information emphasizes that individuals with existing heart conditions should have their condition monitored closely.

Q: Can children be prescribed Vastril for allergies or anxiety?

A: Official regulatory documents explicitly state that the medication is not recommended for children and adolescents under 18 years of age. Furthermore, its approved uses are limited to specific cardiovascular conditions, and it is not indicated for treating allergies or anxiety.

Q: How does Vastril differ from other over-the-counter antihistamines like diphenhydramine?

A: Vastril’s active ingredient belongs to the Angiotensin-Converting Enzyme (ACE) inhibitor class. This class works by modulating the body’s blood pressure system, known as the RAAS. This mechanism is fundamentally different from that of antihistamines, which work by blocking histamine receptors for allergy relief.

Q: What research themes exist regarding the long-term safety of Vastril?

A: Official clinical data shows that the desired antihypertensive effects of the drug are consistently sustained during long-term therapy. Studies also indicate that abruptly stopping the medication does not typically cause a rapid or sudden increase in blood pressure.

Q: Can Vastril cause unexpected effects like irritability in some people?

A: Official regulatory safety profiles have reported uncommon or rare instances of 'mood alterations' and 'depression' as potential adverse reactions. These classifications cover a spectrum of emotional and behavioral changes, including possible irritability.

Q: Does Vastril affect a person's ability to concentrate or focus?

A: Low blood pressure (hypotension) is a potential side effect of Vastril. According to official health information, symptoms of hypotension can include trouble concentrating or feelings of dizziness and lightheadedness.

Q: Is there a known risk of developing severe overdose symptoms with Vastril?

A: An acute overdose poses a risk of critical hypotension, which is a dangerously low blood pressure. Symptoms can include severe dizziness, extreme weakness, and potential fainting due to lack of blood flow.

Q: What kind of studies have been performed to confirm Vastril's use in children?

A: The official regulatory label provides specific, weight-based dosing guidelines for pediatric use in children age six and older. This dosing is based on established clinical trials conducted to determine the drug's safety and effectiveness in this specific population.

Q: How quickly does Vastril start working in the body after it is taken?

A: The blood pressure-lowering effect of Vastril typically begins about one hour after you take an oral dose. Official product information indicates that the medication usually reaches its maximum effect in reducing blood pressure around six hours after administration.

Q: Is Vastril known to affect activity in the central nervous system?

A: While the drug’s primary mechanism targets the blood pressure system, adverse reactions related to the nervous system have been reported. These include dizziness, headache, and somnolence (drowsiness), indicating some level of consequence or activity in this system.

Q: Is dry mouth a frequent and bothersome side effect of Vastril?

A: Dry mouth is not listed as one of the consistently common side effects for the single-ingredient drug. However, it can be a sign of dehydration, which is a condition that may sometimes be influenced by the medication’s effect on fluid balance.

Q: Are there any common reports of people experiencing weight changes while using Vastril?

A: Weight changes are not classified as a common primary side effect of the medication itself. However, in patients with existing heart conditions, the drug's influence on fluid balance may lead to changes in fluid retention or swelling, which can affect weight.

Q: Do the common side effects of Vastril typically lessen as the body adjusts to the medicine?

A: Official health guidance suggests that the risk of certain side effects, such as dizziness, is often higher when a patient first begins treatment or when the dose is increased. This pattern implies that the body may adjust over time, and side effects may become less noticeable with continued use.

Q: What should a patient do if they experience symptoms like a racing heart or pounding heartbeat?

A: A pounding or racing heartbeat has been reported as a symptom associated with taking too much of the medication. The drug can also cause high blood potassium, a condition that can result in a slow or irregular heartbeat. The appearance of either symptom is considered important information for a healthcare professional.

Q: Does Vastril carry any known risks for a person's underlying heart rhythm?

A: The medication can cause an increase in blood potassium levels, a condition known as hyperkalemia. Because the heart is sensitive to electrolyte changes, high potassium levels can potentially lead to a slow or irregular heart rhythm.

Q: What kind of severe skin reactions have been associated with Vastril use in rare cases?

A: Official safety data confirms that in rare instances, severe allergic skin reactions have been reported. These include conditions like Stevens-Johnson syndrome and toxic epidermal necrolysis, which involve serious widespread skin reactions.

Q: Is Vastril considered a non-habit forming drug?

A: Yes, according to the official regulatory classification by the DEA, the medication is not designated as a controlled substance. It is listed as DEA Schedule: None.

Q: Does Vastril interact negatively with alcohol consumption?

A: Yes, official drug interaction information indicates that consuming alcohol while taking this medication can intensify the blood pressure-lowering effect. This additive effect can increase the risk of dizziness, lightheadedness, or fainting.

Q: Can Vastril be safely taken with other common medications that cause sleepiness?

A: Regulatory information indicates that combining the drug with other Central Nervous System (CNS)-active agents may result in additive CNS depression. This combined effect has the potential to further impair a person’s coordination and judgment.

Q: Is it necessary to discuss all non-prescription products and supplements with a doctor before taking Vastril?

A: Official patient information suggests that patients discuss the use of non-prescription products and supplements with a healthcare provider. This includes salt substitutes that contain potassium, as well as any herbal remedies.

Q: Can a person take a typical over-the-counter pain reliever while using Vastril?

A: Official drug labels warn that Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), such as ibuprofen, may reduce the medication’s blood pressure-lowering effect. NSAIDs may also increase the risk of kidney problems, while low-dose aspirin has been discussed in official sources in combination with this medication.

Q: What is the general duration of effect for a single dose of Vastril?

A: According to official pharmacodynamic studies, the desired antihypertensive effect of a single daily dose is sustained for 24 hours. This duration is what allows the medication to be taken just once per day.

Q: How long after a dose of Vastril should a person wait before operating machinery or driving?

A: Regulatory safety guidance indicates that individuals should refrain from activities like driving or operating machinery until they are fully aware of how the medication may affect their alertness, especially if they experience side effects like dizziness or blurred vision.

Q: Is it possible to build up a tolerance to the effects of Vastril over time?

A: Official clinical data indicates that the antihypertensive effects are maintained during long-term therapy. This suggests that tolerance to the primary blood pressure-lowering action of the medication does not typically develop.

Q: Why is Vastril classified as a controlled substance by regulatory bodies?

A: Vastril is not classified as a controlled substance and is designated as DEA Schedule: None.

Q: Why do official documents mention special caution for people with low potassium or magnesium levels?

A: Caution is advised for patients with existing electrolyte imbalances, such as high blood potassium or low blood sodium. The drug's mechanism can affect these levels, and maintaining proper electrolyte balance is crucial for normal body function.

Q: Is it normal to feel slightly groggy the morning after taking Vastril before bed?

A: The medication's effects are sustained over 24 hours, and drowsiness (somnolence) is a reported side effect. While the drug is taken once daily, it is possible for some individuals to experience residual effects like dizziness or grogginess the following morning.

How should Vastril be stored and disposed of?

Vastril (lisinopril) must be stored and disposed of according to the following official requirements.

Storage Conditions

Requirement Official Instruction
Temperature Store at Controlled Room Temperature between 20 C and 25 C (68 F and 77 F).
Protection Protect from moisture and excessive heat.
Container Keep the medication in the original container and keep the container tightly closed.
Child Safety Keep the medication strictly out of the sight and reach of children.

Disposal Instructions

Expired or unused Lisinopril tablets must be disposed of safely to prevent environmental contamination and accidental exposure. The official method is to utilize a local drug take-back program or mail-back envelope.

It is generally instructed not to flush the medicine down the toilet or throw it directly into household trash. If a take-back option is unavailable, consult a pharmacist or follow the instructions for disposal in household trash, which typically involves mixing the medicine with an undesirable substance.

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

Available in countries:

Equivalent of Vastril found in:

A-Z Index: