Val

Quick links to important sections

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Val

What is Val? (Valsartan)

Property Description
Active ingredient Valsartan
Form Film-coated tablet (Oral dosage form)
Pharmacological class Angiotensin II Receptor Blocker (ARB)
General purpose Reduction of blood pressure
Origin Synthetic compound

Defining Val: What Type of Medicine Is It?

Val is a prescription-only medication featuring the active ingredient Valsartan, which is classified as a synthetic compound. This core chemical entity belongs to the SARTAN class, formally recognized as an Angiotensin II Receptor Blocker (ARB). This classification places it among primary drugs for the cardiovascular system. The specific chemical structure of Valsartan, which is L-Valine-derived, is clinically recognized for its high binding affinity to the Angiotensin II Type 1 (AT1) receptor, giving it a sustained effect on vascular resistance.


Composition and Form: The Valsartan Tablet

The medication is a single-ingredient product featuring the Valsartan compound and is strictly intended for systemic use, administered via the oral dosage form. Val is commonly supplied as a film-coated tablet, a presentation designed for accurate delivery and stability of the active material during absorption. Its composition includes the required pharmaceutical excipients to create this solid oral form, but it does not rely on an oil or alcohol base for delivery. This reliable oral route of administration is essential for the consistent, daily management of conditions requiring sustained cardiovascular support.


General Purpose: What Does Val Help Achieve?

The general purpose of Val is to achieve a consistent, targeted reduction of blood pressure by addressing hormonal factors that cause blood vessels to constrict. Valsartan acts as an antagonist that blocks the signal of Angiotensin II, a naturally occurring compound that otherwise narrows the blood vessels. By interrupting this mechanism, Val promotes vasodilation (vessel widening), which subsequently reduces the strain on the heart and supports overall circulatory health. This action firmly establishes Val as a key antihypertensive agent in therapeutic strategies focused on managing high vascular pressure.

Regulatory References

  1. WHO Essential Medicines Lists

What side effects are possible with Val?

Possible Side Effects and Safety Information: Valsartan (Val)

The safety profile for Valsartan (Val), an Angiotensin II Receptor Blocker (ARB), is defined by adverse reactions, frequency classifications, and risk management criteria documented in official government regulatory sources, such as the FDA and EMA. Adverse reactions are formally grouped by the body system affected (System-Organ Class) and by frequency of occurrence, reflecting how regulatory bodies communicate risk.

Officially Documented Adverse Reactions

Adverse reactions are classified into frequency tiers based on clinical trial and post-marketing data:

  • Common (reported in ge 1% of patients): Reactions frequently documented include Dizziness, Headache, Fatigue, and Hypotension (low blood pressure), along with Hyperkalemia (high potassium levels).
  • Uncommon to Very Rare / Not Known: Less frequent reports include Vertigo, Cough, Syncope (fainting), Angioedema (swelling), Hepatitis (liver inflammation), and Vasculitis.

Serious Safety Considerations and Constraints

Regulatory documents highlight critical safety limitations. The most serious warning is for Fetal Toxicity, resulting in a mandatory Contraindication in pregnancy due to the risk of fetal injury or death. This medication is also Contraindicated in patients with severe hepatic impairment, biliary cirrhosis, or cholestasis, and in diabetic patients taking aliskiren.

Population-specific notes require caution and monitoring in patients with pre-existing Renal Impairment or heart failure. Furthermore, symptomatic hypotension is noted to be most likely upon the initiation of therapy in susceptible patients.

Overdose and Emergency Response

Overdose and when to seek help

The officially documented profile for a Valsartan (Val) overdose centers on the severe physiological consequences of excessive blood pressure reduction, which necessitates an immediate emergency response.


Documented Overdose Manifestations

Feature Official Regulatory Descriptions
Documented Manifestations The most likely presentation is profound hypotension (excessively low blood pressure), leading to clinical signs such as dizziness and fainting (syncope). Tachycardia (increased heart rate) may occur, with bradycardia (decreased heart rate) also documented as a possible manifestation.
Severe Outcomes Overdose risks include severe outcomes such as shock and circulatory collapse resulting from dangerously low blood pressure.

Required Emergency Actions

Immediate medical attention or contact with emergency services is required if an overdose is suspected or if severe symptoms, such as fainting or severe lightheadedness, are present. Management is strictly symptomatic and supportive, as no specific antidote is known for Valsartan. To address severe hypotension, supportive measures often include placing the patient in a supine position and administering intravenous fluids to manage volume depletion. Due to high plasma protein binding, the regulatory documentation states that Valsartan is unlikely to be removed by hemodialysis.

Therapeutic Uses of Val

Supporting Seizure Management and Nerve Comfort

This medication is commonly used to manage and reduce the frequency and intensity of seizures to address symptoms of increased neurological or muscular activity. Val is relevant for several primary indications, including the management of various seizure types, the manic phase of bipolar disorder, and for supportive relief of symptoms related to migraine. It is also applied in addressing specific symptoms related to physical discomfort, like tingling, burning, or pain that are linked to nerve overactivity, which contributes to easing the overall symptom load of persistent discomfort.


Moderating Mood Swings and Emotional Stability

Val provides essential support for patients who experience symptoms associated with acute or episodic changes in mood, including acute manic episodes. This action helps with the management of intense or fluctuating emotional patterns and assists with maintaining functional stability when symptoms are more noticeable. It may help patients cope more steadily with symptom fluctuations.

“This medicine is commonly used to help with symptoms that create noticeable physiological strain and may support patients during difficult episodes.”

Quick Fact: Relief for Chronic Neuropathic Discomfort (Val is commonly used in conditions presenting with systemic or localized discomfort and may assist with managing symptoms that interfere with routine activities.)


Relieving Challenging and Chronic Symptoms

The therapeutic application of this medicine is broad, supporting domains where patients require long-term, foundational relief from conditions marked by heightened or distressing manifestations. Its application is relevant in clinical settings where symptoms interfere with daily comfort, and it may provide supportive relief to help improve day-to-day comfort during symptomatic periods.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Val (Valsartan)

The eligibility profile for Valsartan is defined by explicit regulatory criteria concerning physiological status, age, and organ function.

Absolute Contraindications

Valsartan is absolutely contraindicated in pregnant individuals and must be discontinued immediately upon detection of pregnancy. It is also prohibited for patients with a known hypersensitivity to the drug or those with severe hepatic impairment, biliary cirrhosis, or cholestasis. The medicine must not be used by patients with diabetes mellitus who are concurrently taking the direct renin inhibitor aliskiren.

Age and Restricted Use

Use is approved for adults for all labeled indications. For pediatric patients, use is established for hypertension only in those aged 6 to 16 years. It is not recommended for children under 6 for hypertension, or for individuals under 18 for heart failure or post-myocardial infarction. Use is also not recommended for patients with severe renal impairment (GFR less than 30 mL/min/1.73 m^2) or for lactating individuals.

Conditional Use

Patients with mild-to-moderate hepatic impairment, a history of angioedema related to prior ACE inhibitors or ARBs, or renal artery stenosis should use the medication only with official caution.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The potential for drug interactions with Val is primarily determined by its involvement with the metabolic enzyme CYP3A and the drug uptake transporters OATP1B1/1B3. This may affect both the exposure of Val and the exposure of co-administered medicines.

Interaction Classification Summary

Interacting Product Category Mechanism of Interaction Regulatory Recommendation
Rifampin (Specific medicine) Strong CYP3A Inducer and OATP1B1/1B3 Inhibitor Contraindicated (Significantly decreases Val exposure)
Strong/Moderate CYP3A Inhibitors Decreased Val metabolism (CYP3A substrate) Val dose reduction is required
OATP1B1/1B3 Substrate Statins (e.g., Atorvastatin, Rosuvastatin) Val inhibition of OATP1B1/1B3 transporters Statin dose must be limited (Increases statin exposure)
Anticoagulants (e.g., Warfarin) Pharmacodynamic (Increased bleeding risk) Close monitoring of INR is recommended

Co-administration with medicines that inhibit CYP3A (such as certain antifungals or antivirals) necessitates a reduction in the Val dose to prevent excessive exposure. Conversely, strong inducers like Rifampin are contraindicated because they cause Val levels to drop significantly. When used with statins that rely on OATP1B1/1B3 transporters, Val can increase the statin's concentration, requiring careful adjustment of the statin's dose to maintain safety.

Mechanism of Action

How Val Works: Mechanism of Action

Val operates through a dual, complementary mechanism targeting two major physiological pathways.

One component acts as an antagonist on the Angiotensin II Type 1 ( AT1) receptors, preventing the binding and action of the vasoconstrictive hormone Angiotensin II. This receptor blockade dampens signaling within the Renin-Angiotensin-Aldosterone System (RAAS), leading to the relaxation of blood vessels and decreased renal retention of sodium and water.

The second component functions as an inhibitor of the enzyme Neprilysin. By blocking this enzyme, the drug prevents the enzymatic breakdown of naturally occurring natriuretic peptides (NPs). This inhibition increases the concentration and duration of these vasoactive peptides, thereby promoting vasodilation and enhancing the kidneys' excretion of sodium and water (natriuresis and diuresis).

These combined mechanistic steps result in a dual reduction in systemic vascular resistance and an overall decrease in the body's fluid volume, which alters the loading conditions on the heart.

Dosage and Administration Information

How Val is Used: Official Administration Guidelines

Valsartan (Val) is administered exclusively by the oral route, available as a film-coated tablet in strengths from 40 mg to 320 mg. A designated oral suspension form is also available, primarily intended for pediatric patients or those unable to swallow the solid form. The oral suspension must be shaken well before measuring a dose.

Dosing Frequency and Regimen

The frequency of administration is strictly tied to the clinical context. For the long-term management of hypertension, the medication is typically taken once daily. In contrast, for patients managing heart failure or requiring post-myocardial infarction treatment, the drug is administered twice daily in divided doses. Administration is not dependent on mealtimes; the official guidance permits the medicine to be taken with or without food.

Population-Specific Use and Titration

Dosing is defined by a fixed starting dose and a maximum limit. For hypertension, the adult starting dose is generally 80 mg or 160 mg, adjusted up to a maximum of 320 mg daily. For heart failure, the regimen begins at 40 mg twice daily and is gradually increased, as tolerated, toward a target maintenance dose of 160 mg twice daily. The official instructions confirm that no initial dosage adjustments are required for older adults or patients with mild-to-moderate renal or hepatic impairment. Pediatric hypertension requires a starting dose based on body weight.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Val

Evidence for Val's Use in High Blood Pressure

The research base for Val (Valsartan) for the indication of essential hypertension relies primarily on large-scale, long-term Randomized Controlled Trials (RCTs). These studies were used in research exploring how blood pressure measurements change over time, comparing Val to either a placebo or to other established classes of blood pressure medication. Studies examined systolic and diastolic blood pressure (BP) measurements following the use of Val as a stand-alone therapy and the attainment of predefined BP goals. Furthermore, these large trials were applied in studies examining the occurrence of major cardiovascular events, such as nonfatal stroke and heart attack, over the long-term.

Evidence for Val's Use in Chronic Heart Failure

The evidence for Val in chronic heart failure is based on large, multinational, long-term RCTs. These studies monitored outcomes related to chronic cardiac function, with researchers specifically examining survival and the frequency of hospitalization for heart failure. These trials primarily included adult patients with chronic heart failure who had reduced heart pumping function. Studies observed patterns related to mortality and hospitalization rates in patients receiving Val compared to patients receiving an inactive substance (placebo).


Evidence for Val's Use After a Heart Attack (Post-MI)

Research examined Val for use in a specific, high-risk group of adult patients who had recently survived a heart attack (MI) and presented with signs of heart failure or reduced left ventricular function. The main evidence consists of large, non-inferiority RCTs. Research was designed to assess whether Val's outcomes were non-inferior to an established therapy, typically an ACE inhibitor. The evidence is specific to patients with complicated MI, meaning data for other post-MI groups remain insufficient.


What Remains Unclear or Under Research

While Val has been studied extensively, several areas remain where data are still emerging or certainty remains low. One key limitation is that the research does not support the routine use of Val in combination with an ACE inhibitor for either heart failure or post-MI patients, as this strategy was associated with adverse event patterns, and studies did not indicate an additional benefit on outcomes. Furthermore, there is limited information for long-term outcomes in some specific populations, such as heart failure patients with preserved ejection fraction (HFpEF).

Key Studies & References

  1. Valsartan in Acute Myocardial Infarction (VALIANT) Trial: Valsartan, captopril, or both in myocardial infarction complicated by heart failure, left ventricular dysfunction, or both

Frequently Asked Questions (FAQ)

Common questions about Val (FAQ)


Q: Is Val used for more than one health problem or condition?

According to official regulatory documents, Val (Valsartan) is approved for use in treating more than one condition. These indications include the long-term management of high blood pressure (hypertension) and its use in treating chronic heart failure. It is also authorized to improve outcomes in specific patients who have recently experienced a heart attack.


Q: How long is a person typically expected to take Val?

Official information indicates that Val is generally intended for the long-term management of chronic cardiovascular conditions. For conditions like hypertension and heart failure, treatment often requires sustained support. The specific duration of use is determined by the patient's healthcare provider based on the treated condition and individual response.


Q: Is it considered normal to feel tired or drowsy when first starting Val?

Official regulatory reports classify fatigue as a common side effect of Val. It is also noted that reactions such as dizziness and low blood pressure (hypotension) are most likely to occur when beginning treatment. These effects are part of the officially documented safety profile.


Q: Are there any known long-term health risks associated with taking Val for an extended period?

Official documents report risks, such as serious swelling known as angioedema, that can occur. For patients with pre-existing conditions like kidney impairment, regulatory documents state that careful caution is required during long-term use. This highlights why long-term use requires monitoring as defined in the official guidelines.


Q: Can I take Val with common over-the-counter pain relievers like ibuprofen or acetaminophen?

Regulatory sources caution that taking non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, may potentially reduce the blood pressure-lowering effect of Val and increase the risk of kidney issues. Acetaminophen is generally not listed as a major interaction in the official prescribing information, but this does not guarantee safety.


Q: What over-the-counter medicines, besides pain relievers, must be avoided while on Val?

Caution is noted regarding co-administration with other agents that can increase potassium levels in the blood, a condition called hyperkalemia. These substances include certain over-the-counter products like potassium-containing salt substitutes.


Q: Is it safe to take Val with my regular blood pressure medication?

Official warnings advise against combining Val with an ACE inhibitor due to a potential increase in adverse effects and lack of additional benefit for many patients. Furthermore, Val is contraindicated (prohibited) for use with the direct renin inhibitor aliskiren in individuals with diabetes.


Q: Is the generic version of Val generally considered as effective as the brand name product?

Government drug agencies approve generic medicines by requiring them to demonstrate bioequivalence to the brand name product. Bioequivalence confirms that the generic form contains the same active ingredient and is expected to work in the same way.


Q: What kind of research evidence supports the current uses of Val?

The evidence supporting the approved uses of Val is based on large-scale, long-term randomized controlled trials (RCTs). These studies examine clinical endpoints, such as the changes in blood pressure, survival rates, and the frequency of hospitalization for heart failure in the studied patient populations.


Q: What happens if a person stops taking it suddenly?

General warnings for chronic cardiovascular medications indicate that stopping the medicine suddenly may result in a rapid return or worsening of the condition being treated, such as high blood pressure. Abrupt changes in regimen for chronic cardiovascular medications are often associated with this caution in official guidance.


Q: How quickly can a person expect to notice the benefits of Val after starting treatment?

The clinical pharmacology information indicates that the blood pressure-lowering effect begins soon after the first dose. Peak concentrations are typically achieved within two to four hours, and the full therapeutic effect of the medicine is generally seen within two to four weeks of starting treatment.


Q: Does Val cause weight gain or weight loss?

Neither weight gain nor weight loss is listed as a common adverse reaction in the official regulatory documents. Common adverse reactions are defined as those occurring in 1% or more of patients in clinical trials.


Q: Does Val interact with caffeine?

Official administration guidance confirms the medicine can be taken with or without food, and regulatory documents do not typically list caffeine as a specific drug interaction that requires special monitoring.


Q: Does Val interact with herbal supplements like St. John's Wort or ginkgo?

Official regulatory sources warn about interactions with substances that are strong CYP3A inducers (a type of enzyme change). Taking Val with a strong inducer, which can include certain herbal supplements like St. John's Wort, may cause a significant decrease in the body's exposure to Val.


Q: Can certain foods or drinks change how Val works in the body?

The official administration guidance states that Val can be taken with or without food. This indicates that the medicine's necessary effect on the body is not significantly altered by the timing of meals.


Q: Can I drink alcohol socially while taking Val?

Official patient information typically warns that consuming alcohol may add to the blood pressure-lowering effect of Val. The official warning indicates this can increase the potential for side effects associated with low blood pressure, such as dizziness or fainting.


Q: Are there any known interactions between Val and daily multivitamins?

Multivitamins are not listed as a direct interaction in the official prescribing information. However, caution is advised if the multivitamin contains high levels of potassium, as co-administration can increase the risk of high potassium levels (hyperkalemia) in the body.


Q: Can I safely take Val if I need to use an antibiotic for a separate infection?

The potential for an interaction depends on the type of antibiotic. Regulatory sources specifically warn against using Val with strong CYP3A inhibitors—a classification that includes certain antibiotics. Co-administration with these types of medicines is described as necessitating dose adjustment by a healthcare provider.


Q: How will I know for sure if Val is actually having a positive therapeutic effect?

Val is designed to reduce blood pressure and decrease the risk of serious cardiac events. The most common way to monitor the drug's effect is through the regular measurement of blood pressure, as outlined in the general management plan for hypertension.


Q: Can the positive effects of Val wear off over time (developing tolerance)?

Official regulatory studies track the sustained effects of Val over long periods of use. The drug is described as providing a sustained reduction of blood pressure over the dosing interval, and a loss of effectiveness (tolerance) is not typically cited as a common feature in the official documentation.


Q: Does Val need to be taken at the exact same time every day to maintain its effect?

Regulatory documents specify that the medicine should be taken regularly and at approximately the same time each day. This consistent schedule helps to maintain steady levels of the medicine in the blood, which is essential for maintaining the full therapeutic effect.


Q: Is Val approved for use in countries outside of the United States?

Yes, Val is approved for use in many countries globally. The drug has official prescribing information available from various international governmental authorities, including the European Medicines Agency (EMA), Health Canada, and the Therapeutic Goods Administration (TGA) in Australia.


Q: Is Val safe to use while breastfeeding?

Regulatory documents advise that Val is not recommended for use while breastfeeding. This is because the medicine may pass into human milk, and the potential risk or effect on the nursing infant has not been established.


Q: Does Val have a risk of withdrawal symptoms if a person stops taking it suddenly?

The adverse outcomes associated with suddenly stopping Val are primarily described as the worsening or rebound of the condition being treated, rather than a classical withdrawal syndrome. This is a common caution for medications used to treat chronic cardiovascular conditions.


Q: What happens if I miss a dose of Val?

Official patient information often advises that if a dose is missed, it can be taken as soon as it is remembered. However, if it is already close to the time for the next scheduled dose, the advice is generally to skip the missed dose and resume the regular schedule.


Q: Does Val make it unsafe to drive or operate machinery?

Official documents contain a specific warning that side effects like dizziness or fatigue can occur. The official warning indicates that caution may be necessary when performing tasks requiring mental alertness, such as driving or operating machinery, if these effects are experienced.


Q: Is Val only for adults, or is it approved for use by children or teenagers?

Val is approved for the treatment of hypertension in pediatric patients aged 6 to 16 years. However, it is not recommended for children under 6 years old, or for use in patients under 18 for the treatment of heart failure or after a heart attack (post-MI).


Q: How common are the reported side effects of Val?

Regulatory documents classify adverse reactions into frequency tiers based on clinical trial data. These tiers define side effects as common (occurring in 1% to 10% of patients), uncommon (occurring in 0.1% to 1% of patients), rare, or very rare.


Q: Are there any minor warnings associated with Val?

The Warnings and Precautions section in the official labeling covers a spectrum of risks, not just the most severe. For instance, cautions are specifically listed for patients with mild-to-moderate liver (hepatic) impairment or a prior history of swelling (angioedema).

How should Val be stored and disposed of?

Storage Conditions and Disposal Rules

Valsartan tablets must be stored according to regulatory requirements to ensure product stability and effectiveness.

Storage & Disposal Scope Official Regulatory Requirement
Labeled Storage Temperature Store at controlled room temperature (20 C to 25 C / 68 F to 77 F).
Protection Requirements Protect from moisture, high heat, and direct light. Keep from freezing.
Container Requirements Store the tablets in the original container and keep the container tightly closed.
Child-Protection Rules The medicine must be kept out of the reach of children.
Disposal Instructions Dispose of unused or expired medicine according to local requirements. It should not be disposed of via household waste or wastewater.

These mandated conditions define how the product must be stored, protected, handled, and discarded, ensuring its quality is maintained up to the expiration date as defined in regulatory documentation.

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

Available in countries:

Equivalent of Val found in:

A-Z Index: