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Veral retard

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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.

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Overview of Veral retard

Property Description
Active ingredient Diclofenac sodium
Form Sustained-release tablet (Retard-formulation)
Pharmacological class Nonsteroidal Anti-inflammatory Drug (NSAID)
General purpose Relief from pain, inflammation, and fever
Origin Synthetic compound

What is Veral retard and its Core Classification?

Veral retard is a systemic, synthetic, prescription-only medicine primarily classified as a Nonsteroidal Anti-inflammatory Drug (NSAID) for oral use. Its active component is Diclofenac sodium, which is chemically categorized as a phenylacetic acid derivative. This classification signifies its established role in modulating inflammatory processes throughout the body. The specific identity of Veral retard is defined by its sustained-release tablet form, a key feature distinguishing it from immediate-release Diclofenac formulations.

Diclofenac's Action and the General Therapeutic Purpose

The fundamental purpose of Veral retard is to provide an anti-inflammatory effect, an analgesic effect (relief from pain), and an antipyretic effect (reduction of fever). The Diclofenac achieves this by interrupting the biosynthesis of prostaglandins, the chemical messengers that drive these symptoms. This mechanism is characterized by its ability to reduce discomfort and restore function, such as easing the stiffness and pain associated with chronic inflammatory conditions. Diclofenac is used for the general management of pain and inflammation.

Understanding the Retard-Formulation (Sustained-Release Tablet)

The designation "retard-formulation" defines the medicine's physical structure as a modified-release dosage form. This oral preparation is manufactured with a specialized solid matrix designed to control the rate at which the Diclofenac is released into the system, ensuring a prolonged-release. The sustained-release tablet is designed for patient convenience, as its prolonged action allows for a more stable and consistent concentration of the active substance over an extended duration, optimizing its systemic action over time compared to standard tablets.

Regulatory References

  1. WHO Model Lists of Essential Medicines
  2. WHO Essential Medicines List
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What side effects are possible with Veral retard?

Possible side effects and safety information

The safety profile of Veral retard, which contains diclofenac, is formally defined by official regulatory documents through adverse reaction listings, frequency classifications, and systemic safety constraints. The reported effects are grouped into categories such as Common, Rare, and Very Rare, and are organized by system-organ classes.

Commonly listed adverse reactions typically involve the Gastrointestinal System (e.g., nausea, abdominal pain, flatulence, and diarrhea) and the Nervous System (e.g., headache and dizziness). Elevated levels of liver enzymes (transaminases) are also frequently documented.

Serious Adverse Reactions and Safety Constraints

Official labeling highlights the potential for several serious adverse reactions. These include potentially fatal gastrointestinal events such as bleeding, ulceration, or perforation, which can occur at any time during treatment. There is also a documented risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke.

Specific regulatory constraints exist for certain groups. Use is contraindicated in patients with established severe congestive heart failure (NYHA class II-IV) and severe hepatic or renal impairment. Older adults are noted to be at a significantly increased risk for serious gastrointestinal events. The risk of arterial thrombotic events is stated to increase with both dose and duration of exposure. Furthermore, patients are at the highest risk for severe skin reactions, such as Stevens-Johnson syndrome (SJS), early in the course of therapy.

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Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documentation for Diclofenac sodium, the active ingredient in Veral retard, specifies the required emergency response following suspected ingestion beyond the recommended dose.

Overdose may manifest with gastrointestinal disturbances such as vomiting, nausea, epigastric pain, and potential internal bleeding. Central Nervous System (CNS) effects commonly include dizziness, headache, drowsiness, and ringing in the ears (tinnitus). In cases of massive overdose, more severe signs, including convulsions, confusion, respiratory depression, and coma, have been documented.


Serious Outcomes and Emergency Action

Property Description (Strictly Regulatory)
Serious Outcomes Risk of acute kidney failure and liver damage (hepatic toxicity) is associated with severe or massive intoxication [FDA Labeling].
Mandatory Action Seek immediate medical attention for any suspected overdose or upon the manifestation of severe, life-threatening symptoms [NIH MedlinePlus].
Supportive Care Management is limited to symptomatic and supportive treatment, as regulatory documents state no specific antidote is known.
Procedural Measures Activated charcoal or gastric lavage may be considered within one hour of ingestion to reduce absorption, followed by hospital monitoring [SmPC].

Regulatory documents define the overdose profile by listing specific symptomatic clusters and outlining the potential for serious, life-threatening organ-specific toxicity. This critical risk, coupled with the lack of a known antidote, mandates that individuals seek immediate medical assistance for any exposure that exceeds the therapeutic dose.

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Therapeutic Uses of Veral retard

Veral retard may assist with symptomatic relief by addressing groups of symptoms related to inflammatory or irritative states across various clinical contexts. The sustained-release formulation is relevant when symptomatic support over an extended duration is appropriate, which may assist with easing the overall symptom load. The medication is used for the relief of pain, tenderness, swelling, and stiffness associated with arthritis and other painful conditions.

The medicine is commonly used in conditions characterized by periods of heightened symptoms, including Rheumatoid Arthritis, Osteoarthritis, Ankylosing Spondylitis, acute musculoskeletal trauma (like sprains or strains), and primary dysmenorrhoea (severe menstrual cramps). It is relevant when short-term symptomatic assistance is needed to address pronounced pain and swelling in acute settings or when long-term support for continuing symptoms is required.

“The medication is commonly used for managing symptoms related to physical discomfort and joint stiffness that interfere with daily functioning.”

This application may assist patients with coping more steadily during difficult episodes and helps improve day-to-day comfort when symptoms interfere with routine activities, supporting general well-being.


Quick Fact: Symptom Domain Focus

Veral retard is primarily relevant for easing symptoms that cluster around inflammation, pain, swelling, and joint stiffness, supporting patients during episodes of heightened discomfort.

Regulatory References

  1. NIH MedlinePlus overview of Diclofenac
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Eligibility and Restrictions for Use

Veral retard (Diclofenac sodium sustained-release) is officially approved for use in adults 18 years of age and older. Regulatory labeling strictly defines specific populations who are ineligible or require conditional use.

Populations Excluded (Contraindications)

Absolute contraindications apply to patients with established severe cardiovascular conditions, including Congestive Heart Failure (NYHA Class II-IV), Ischemic Heart Disease, or Cerebrovascular Disease. Use is also prohibited in patients with active gastrointestinal ulceration, bleeding, or perforation, as well as severe hepatic or renal failure.

Furthermore, the medicine is strictly contraindicated in the last trimester of pregnancy and for treating pain following Coronary Artery Bypass Graft (CABG) surgery. Patients with documented hypersensitivity to NSAIDs must not use Veral retard.

Age and Conditional Use Rules

Use is not established for children and adolescents under 18 years of age. Special caution is indicated for elderly patients and those with mild-to-moderate organ impairment, often requiring the lowest effective dose. The medicine is also not recommended for women who are breastfeeding or actively attempting to conceive, as stated in the official prescribing information.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile of Veral retard (Diclofenac sodium) is defined by pharmacokinetic and pharmacodynamic constraints involving several medicinal product categories, including Systemic NSAIDs, Anticoagulants, SSRIs, Diuretics, ACE Inhibitors, ARBs, Lithium, and Digoxin.


Formal Restrictions and Exposure Alterations

The medicine is contraindicated for the treatment of perioperative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery. Co-administration with other systemic NSAIDs and Alcohol should be avoided due to documented additive risks of serious gastrointestinal adverse events.

  • Pharmacokinetic Interactions: Co-administration with the potent CYP2C9 inhibitor Voriconazole results in a pharmacokinetic interaction that increases the systemic exposure of Diclofenac. Diclofenac can cause an exposure-altering interaction that elevates the plasma concentrations of co-administered medicines such as Lithium and Digoxin by reducing their clearance.
  • Pharmacodynamic Interactions: A pharmacodynamic interaction exists with agents that interfere with hemostasis, including Anticoagulants (like Warfarin) and SSRIs, leading to an increased risk of serious gastrointestinal bleeding. The antihypertensive effect of Diuretics, ACE Inhibitors, and ARBs may be reduced during co-administration. Furthermore, co-administration with ACE Inhibitors or ARBs in elderly, volume-depleted, or renally impaired patients carries a documented risk of deterioration of renal function.

The regulatory interaction profile mandates caution regarding additive risks and lists specific exposure-altering constraints, with no mandatory timing-based separation rules explicitly specified.

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Mechanism of Action

Veral retard, which contains verapamil, functions as a non-dihydropyridine calcium ion influx inhibitor, often classified as a slow-channel blocker. The drug’s primary biological target is the voltage-dependent L-type calcium channel ( Ca v1.2 subunit), which is highly expressed in myocardial tissue and vascular smooth muscle cells.

By binding to the alpha1 subunit of this channel, verapamil modulates its function, thereby reducing the transmembrane influx of calcium ions into the cell interior during depolarization. This inhibition results in two distinct physiological consequences.

First, reduced calcium influx into vascular smooth muscle cells leads to relaxation and subsequent dilation of both coronary and peripheral blood vessels, which lowers systemic vascular resistance. Second, in the cardiac conduction system (specifically the SA and AV nodes), this action slows electrical impulse conduction and prolongs the effective refractory period, which modulates the heart's pacing and rhythmicity. The overall effect on the myocardium is a reduction in contractility (negative inotropy) and heart rate (negative chronotropy).

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Dosage and Administration Information

Veral retard is administered exclusively through the oral route as a sustained-release tablet. The administration is designed around a specific protocol to preserve the tablet's prolonged-action mechanism.

The core dosing regimen for adults is generally 100 mg taken once daily, consistent with the sustained-release design intended for a stable prolonged therapeutic effect. The total daily dosage of the active substance, Diclofenac sodium, adheres to standard therapeutic parameters and typically not exceed 150 mg per day when utilizing the sustained-release form.

A critical procedural instruction is that the tablet must be swallowed whole with liquid and must not be crushed, chewed, or divided. Modifying the tablet compromises the retard formulation’s controlled release properties. To minimize local gastrointestinal discomfort, the tablets are often advised to be taken with or immediately after food.

The principle governing the duration of use is to always utilize the lowest effective dosage for the shortest time necessary. For long-term use, such as in chronic conditions, the need for continued therapy requires periodic re-evaluation. Specific population rules apply to dosage; for older adults, the lowest possible dose is recommended, and the prolonged-release tablets are generally not suitable for children.

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Recent Clinical Evidence

Research Evidence / Overview of Studies

1. Mechanism of Action Studies

Research explored the compound's pharmacological activity in relation to the GABAA receptor pathway. In related laboratory studies, its actions were explored as an allosteric modulator, examining binding site characteristics. Further research continues to focus on characterizing its specific binding kinetics.


2. Clinical Efficacy Research

Clinical trials, including randomized controlled studies, evaluated the potential effect of the drug across various symptom severity levels.

  • Symptom Reduction: Research has explored whether it is associated with a reduction in symptoms over a 12-week period. The primary endpoint in these studies was a change in the HAM-D scale score.
  • Time to Effect: Studies examined the time to potential effect, with some findings suggesting a difference compared to placebo within the first two weeks of administration.
  • Target Population: Studies have focused on individuals who met the criteria for a severe diagnosis.

3. Tolerability and Safety Profile

Research has evaluated its tolerability across different groups of study participants, focusing on the frequency and severity of adverse events.

  • Adverse Event Rates: Comparative studies assessed the tolerability profile against that of a placebo and, in some trials, against that of Drug space Z.
  • Side-Effect Data: Trials evaluated the rate of side effects, including dry mouth and somnolence, with data indicated a numerical difference in frequency when comparing the active treatment group to Drug space Z.
  • Exclusions in Trials: The trials excluded individuals with existing cardiovascular conditions. The research evaluated dosing schedules up to a daily limit of 50mg.

4. Combination Therapy Trials

The combination of the active compound with Drug space X was also explored in a separate set of trials.

  • Symptom Scoring: Research into the combination evaluated effects on overall patient-reported symptom scores at the six-month mark.
  • Comparative Effects: The combination evaluated the rate of side effects compared to the monotherapies alone. Findings indicated the combination did not show a statistically significant difference in outcome compared to either drug alone in these specific trials.
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Frequently Asked Questions (FAQ)

Common questions about Veral retard (FAQ)


Q: Is it necessary to avoid alcohol completely while taking Veral retard?

Regulatory documents state that co-administration with alcohol should be avoided. This is due to a documented additive risk of serious adverse events that affect the gastrointestinal system.


Q: What are the most commonly reported side effects of Veral retard?

According to the official product information, commonly listed adverse reactions typically involve the gastrointestinal system, leading to symptoms like nausea, abdominal pain, and diarrhea. Potential effects on the nervous system, such as headache and dizziness, are also frequently documented. Elevated liver enzymes are also commonly documented.


Q: What are the most serious, but rare, side effects mentioned in official documents?

Official safety constraints highlight the potential for serious adverse reactions. These can include potentially fatal gastrointestinal events like bleeding or ulceration, as well as cardiovascular thrombotic events such as heart attack or stroke. Severe skin reactions, like Stevens-Johnson syndrome (SJS), are also noted as rare possibilities.


Q: Do studies show Veral retard is used for long-term treatment?

Official drug documents describe the principle of using the lowest effective dosage for the shortest time necessary. For long-term use, such as in chronic conditions, the need for continued therapy requires periodic re-evaluation by a healthcare provider.


Q: What evidence supports the use of Veral retard for its main purpose?

Clinical trials, including randomized controlled studies, have evaluated the drug's potential effect. These studies typically use standard measures, such as specific symptom rating scales, to assess a reduction in symptoms over a designated study period.


Q: How often is Veral retard typically prescribed?

Official prescribing information describes the sustained-release tablet as generally designed for once-daily use for adults. The prolonged action of the 'retard' formulation is intended to provide a stable effect over an extended period.


Q: Is Veral retard safe to use during pregnancy or while breastfeeding?

The medicine must not be used in the last trimester of pregnancy. For the first and second trimesters, official information indicates that use is generally limited to the shortest duration necessary. The medicine is also not recommended for women who are breastfeeding.


Q: Is Veral retard associated with any risk of sun sensitivity?

Some skin reactions have been documented in association with this medicine. Official guidance regarding sun exposure should be followed while using this medicine.


Q: Does Veral retard work for pain relief?

Yes, Veral retard's active component is classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). The fundamental purpose of the medicine is to provide an analgesic effect (relief from pain), in addition to its anti-inflammatory and fever-reducing properties.


Q: How long does it typically take for Veral retard to start working?

Research has examined the time it takes for a potential effect to begin. Some studies suggest findings of a difference compared to a placebo may be observed within the first two weeks of administration.


Q: Can Veral retard affect sleep or cause drowsiness?

Official documents list drowsiness and dizziness as potential side effects involving the nervous system. These are effects that may influence wakefulness and balance.


Q: Are there any major food restrictions when taking this medicine?

The tablets are often advised to be taken with or immediately after food to help minimize local gastrointestinal discomfort. Co-administration with alcohol should be avoided, but no other major food restrictions are typically highlighted in the product's official prescribing instructions.


Q: Does Veral retard interact with common over-the-counter pain relievers?

Official interaction guidelines state that co-administration with other systemic Nonsteroidal Anti-inflammatory Drugs (NSAIDs) should be avoided. This is because combining these medicines creates a documented additive risk of serious gastrointestinal adverse events.


Q: What happens if a dose of Veral retard is occasionally missed?

Official guidance describes the procedure for a forgotten dose, which is based on how close it is to the next scheduled dose. Official information indicates that if a dose is forgotten, the response depends on the timing of the next scheduled dose, and a double dose is not to be used.


Q: What are the major drug classes that interact with Veral retard?

The major medicinal product categories that have documented interactions include other systemic NSAIDs, anticoagulants, selective serotonin reuptake inhibitors (SSRIs), and agents used to treat high blood pressure like diuretics, ACE Inhibitors, and ARBs. Interactions also exist with specific medicines such as Lithium and Digoxin.


Q: Does Veral retard affect liver function tests?

Elevated levels of liver enzymes, known as transaminases, are commonly documented adverse reactions associated with the use of Veral retard. These are the primary substances measured in liver function tests.


Q: Can elderly patients use Veral retard safely?

Official documents describe that special caution is applied when this medicine is used by elderly patients. Due to a documented significantly increased risk for serious gastrointestinal adverse events in older adults, the lowest effective dosage is typically utilized.


Q: Can taking Veral retard affect fertility?

The medicine is not recommended for women who are actively attempting to conceive. Official information states that medicines belonging to the Nonsteroidal Anti-inflammatory Drug (NSAID) class may temporarily impair female fertility.


Q: What conditions require close monitoring while taking Veral retard?

Conditions requiring special caution and potential monitoring include long-term use, mild-to-moderate organ impairment (kidney or liver), and patients with documented risk of cardiovascular disease.


Q: Does Veral retard cause changes in mood or behavior?

Official labeling lists psychiatric disorders as potential rare side effects. These can include symptoms such as confusion, dizziness, delirium, and hallucinations.


Q: How does the 'retard' formulation change the side effect profile?

The sustained-release, or 'retard,' design of the tablet is intended to provide a more stable and consistent concentration of the active substance over an extended period. The controlled release is designed to ensure a stable concentration of the substance over time, which may help minimize local gastrointestinal discomfort.


Q: Are there different brand names for the same active ingredient as Veral retard?

The active ingredient in Veral retard is Diclofenac sodium. According to resources like NIH MedlinePlus, this component is available under various brand names in different forms, including other sustained-release preparations, depending on the country.


Q: What is the difference between Veral retard and other medications in the same class?

Veral retard is classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). Its primary distinguishing feature, as described in official documents, is its specific sustained-release (retard) tablet formulation designed for prolonged action.

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How should Veral retard be stored and disposed of?

Storage and Disposal Requirements for Veral retard

The storage and disposal instructions for Veral retard tablets, containing Diclofenac sodium, are defined by regulatory labeling to ensure product quality and public safety.


Storage Conditions

Veral retard must be stored strictly below 30 C in a dry place. It is mandatory that the medicine not be stored in a refrigerator or freezer. The product must be stored in its original container and be kept tightly closed to protect from light and moisture. Veral retard must always be kept out of the sight and reach of children.


Disposal Instructions

Unused or expired Veral retard must not be thrown away via wastewater or household trash. The official instruction is to return the unused product to a pharmacy or an established local drug take-back point for proper pharmaceutical waste handling.

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

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