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Diclolabsa Relax

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Diclolabsa Relax

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Treatment option:

Medically reviewed

Laura Arias

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 Diclolabsa Relax

Property Description
Active Ingredients Diclofenac, Pridinol
Form Coated Tablet (Comprimidos Recubiertos)
Pharmacological Class NSAID and Centrally Acting Muscle Relaxant
Common Use Relief of pain associated with muscle spasm
Origin Synthetic

What Type of Medicine is Diclolabsa Relax?

Diclolabsa Relax is formally defined as a fixed-dose combination product, integrating two separate active ingredients: Diclofenac and Pridinol. This medicine is broadly classified pharmacologically as an analgesic and a Non-Steroidal Anti-Inflammatory Drug (NSAID), combined with a Centrally Acting Muscle Relaxant. The specific formulation, available as a Coated Tablet, is a prescription-only (Venta Bajo Receta) oral treatment primarily recognized in certain Latin American pharmaceutical markets.

Both Diclofenac (a phenylacetic acid derivative) and Pridinol (an antimuscarinic agent) are products of synthetic chemical synthesis. This composition unifies two distinct therapeutic classes into one preparation, clinically recognized for its ability to target both the underlying inflammatory process and the resulting involuntary muscle contracture that often characterize painful musculoskeletal discomfort, differentiating it from single-ingredient NSAIDs.


How Do Diclofenac and Pridinol Work Together?

The general therapeutic purpose of this product is to provide combined relief from both pain and excessive muscle tightness. Diclofenac primarily functions to reduce the body's production of chemical mediators, such as prostaglandins, which drive the inflammatory process and signal pain. Concurrently, Pridinol acts centrally to reduce the excessive nerve impulses that cause and maintain painful, involuntary muscle contracture. This action helps reduce muscle hypertonicity and stiffness.

This combination’s benefit lies in its capacity to simultaneously decrease the sensation of pain and directly mitigate the underlying spasm, an approach categorized as analgesic-myorelaxant. This coordinated dual-action approach is particularly useful in managing painful conditions where muscle tension is a core contributor to discomfort, aiming to restore comfortable movement and improve function.

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What side effects are possible with Diclolabsa Relax?

Possible side effects and safety information

This section outlines the possible adverse reactions and safety characteristics of the Diclofenac/Pridinol combination, based strictly on government regulatory documents.


Adverse Reaction Scope and Classification

The safety profile is primarily defined by the systemic effects of Diclofenac, a Non-Steroidal Anti-Inflammatory Drug (NSAID), and the anticholinergic effects of Pridinol. Official regulatory documents categorize effects by frequency and the body system affected (System-Organ-Classes).

  • Common Effects typically include gastrointestinal issues (e.g., nausea, dyspepsia, abdominal pain), headache, and dizziness.
  • Anticholinergic Effects (frequency often categorized as 'Not Known') are associated with Pridinol and may include dry mouth, blurred vision, or urinary retention.

Serious Adverse Reactions

Regulatory documentation highlights serious, though less frequent, risks. These include serious Gastrointestinal events such as bleeding, ulceration, and perforation, which can occur at any time. The label also documents the risk of serious Cardiovascular Thrombotic Events, including myocardial infarction (heart attack) and stroke, which may increase with higher doses and longer duration of use. Severe hepatic (liver) and cutaneous (skin) reactions are also noted.


Safety Restrictions and Special Populations

Contraindications are specific conditions where the medicine should not be used, such as active gastrointestinal bleeding or ulceration, severe hepatic or renal failure, and established cardiovascular disease (e.g., ischemic heart disease or heart failure). Older adults are considered a special population due to a generally increased risk of serious gastrointestinal events. Specific caution is required for patients with conditions sensitive to anticholinergic effects, such as angle-closure glaucoma or conditions risking urinary retention.

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Overdose and Emergency Response

Overdose and When to Seek Help

Overdose with this combination medicine requires immediate medical attention and is officially classified as potentially severe or life-threatening by regulatory authorities. The profile is primarily driven by the Diclofenac component.

Documented Overdose Presentations

Symptoms officially documented in regulatory sources include gastrointestinal disturbances such as nausea, vomiting (potentially with blood), stomach pain, and diarrhea. Neurological manifestations may include drowsiness, dizziness, confusion, agitation, and, in very severe cases, seizures or coma [MedlinePlus, accessdata.fda.gov].

Severe or life-threatening outcomes can include gastrointestinal bleeding, ulceration, or perforation, as well as acute kidney damage or renal failure [accessdata.fda.gov]. Regulatory notes indicate that elderly patients are at greater risk for serious gastrointestinal events. There are no specific antidotes known for this overdose.

When Immediate Medical Help is Required

Regulators mandate that individuals seek immediate medical attention or emergency medical care if an overdose is suspected or if serious symptoms occur. This includes signs such as chest pain, shortness of breath, severe abdominal pain, vomiting material that looks like coffee grounds, or any signs of an allergic reaction [accessdata.fda.gov].

Management procedures described in official documents focus on symptomatic and supportive care. This may involve procedures such as activated charcoal administration, gastric lavage, or monitoring via ECG and endoscopy in a hospital setting [MedlinePlus].

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Therapeutic Uses of Diclolabsa Relax

What Diclolabsa Relax Treats: Main Uses and Benefits

The medication is used to provide short-term relief from acute pain and discomfort that is complicated by muscle tightness or spasm. This is generally applied in clinical settings that involve acute or unstable symptom patterns, such as those associated with strains, sprains, and acute low back pain or tension-type headaches with accompanying muscle spasms.

This combination is commonly used in conditions presenting with symptoms associated with muscle and joint inflammation. This approach helps address symptom clusters that may become intense or disruptive, offering symptomatic relief that helps patients cope more steadily with difficult episodes.

The medication is relevant for easing symptoms related to inflammatory or irritative states and provides support that helps ease the overall symptom burden. One aim of this supportive management is to maintain a sense of stability when symptoms are more noticeable. This is reflected in the therapeutic approach:

“The supportive relief provided may help the patient cope more steadily during periods of heightened discomfort.”

Quick Fact: Symptomatic Support for Acute Pain and Muscle Spasm

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Eligibility and Restrictions for Use

Eligibility Profile: Who Can and Cannot Use Diclolabsa Relax?

This medicine is subject to strict official eligibility rules, primarily due to its Diclofenac (NSAID) component, as defined by government regulatory authorities.

Contraindicated Populations

Use is contraindicated for patients with active gastrointestinal ulceration, bleeding, or perforation. It must not be used by individuals with a known hypersensitivity to the active substances, aspirin, or other NSAIDs, including those with aspirin-sensitive asthma. Absolute exclusions also apply to patients with established congestive heart failure (NYHA class II–IV), other established cardiovascular diseases, or those in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Age and Physiological Restrictions

Severe renal or hepatic impairment is a contraindication. The medicine is contraindicated in women from the third trimester of pregnancy (30 weeks gestation) and not recommended for children younger than 14 years of age or in breastfeeding women. Use requires careful consideration for the elderly and for patients with significant cardiovascular risk factors like hypertension or diabetes.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define the interaction profile of Diclolabsa Relax (Diclofenac/Pridinol) based on the combined effects of its two active ingredients.

Contraindicated Combinations

Co-administration with other Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) or Aspirin at anti-inflammatory doses is strictly contraindicated. This restriction is documented in regulatory labeling due to a significantly increased and additive risk of serious gastrointestinal bleeding and ulceration.

Pharmacodynamic and Exposure Interactions

  • Anticoagulants and Antiplatelet Agents: Combination with Diclofenac results in an additive pharmacodynamic risk of bleeding.
  • Antihypertensive Agents: Diclofenac officially diminishes the blood pressure-lowering effect of medicines like ACE Inhibitors and Diuretics due to antagonism via renal prostaglandin inhibition.
  • Lithium and Digoxin: Co-administration with Diclofenac can officially increase the plasma concentration of both Lithium and Digoxin.
  • Anticholinergics: Pridinol has an officially documented additive antimuscarinic action when combined with other anticholinergic drugs.
  • CYP2C9 Inhibitors: Strong inhibitors like Voriconazole officially increase the plasma concentration of Diclofenac.

Interaction-Related Constraints

The interaction risk involving Diclofenac and antihypertensives is officially noted to be of greater concern in the Elderly and those with pre-existing Renal Impairment or Volume Depletion. Furthermore, consumption of Alcohol while taking the Diclofenac component increases the documented risk of serious gastrointestinal bleeding.

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Mechanism of Action

Modulation of Peripheral Inflammatory Mediator Synthesis

The Diclofenac component functions as an inhibitor of the Cyclooxygenase (COX) enzymes. By blocking these key enzyme targets, the drug prevents the biological conversion of precursor molecules into prostaglandins—the chemical mediators that drive localized inflammatory cascades and sensitize peripheral nociceptors. This mechanism results in a reduction of localized biochemical signaling within the inflammatory pathway.


Dampening of Central Cholinergic Motor Signaling

The Pridinol component primarily operates within the central nervous system (CNS), particularly the spinal cord, acting as a competitive antagonist (blocker) of Muscarinic Receptors. By interfering with the effects of Acetylcholine at these motor pathway receptors, the drug reduces the transmission of excessive nerve impulses. This dampening of hyperactive central signaling lowers the excitability of motor pathways, leading to a physiological decrease in involuntary muscle hypertonicity.


The overall physiological profile is achieved through the coordination of these two distinct mechanisms: one modulating the peripheral prostaglandin synthesis pathways and the other modulating the central cholinergic motor pathways.

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Dosage and Administration Information

The administration of Diclolabsa Relax, a fixed-dose combination product containing Diclofenac and Pridinol, is indicated for the oral route of administration in the form of a Coated Tablet.

Administration and Labeled Dosing

Feature Official Usage Principle
Dose One tablet, containing Diclofenac 50 mg and Pridinol 4 mg.
Frequency Administered in divided daily doses, typically two to three times per day.
Maximum The total daily dose should not exceed three tablets.
Duration Use is strictly limited to the shortest possible time necessary for the course of treatment.

Procedural Instructions

The Coated Tablet must be swallowed whole and should not be split, crushed, or chewed, as doing so may alter the medication's designed release characteristics. The dosage is recommended to be taken with or immediately after meals to support proper tolerability, a standard administration condition associated with oral non-steroidal anti-inflammatory drugs (NSAIDs).

Dosing is initiated at the lowest effective dose. Age-specific rules dictate that the combination is generally not recommended for children under 12 years of age. Furthermore, use in older adults and patients with mild to moderate kidney or liver impairment requires careful oversight, with the medication being contraindicated in cases of severe impairment.

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Recent Clinical Evidence

Research evidence / Overview of studies for Diclolabsa Relax

Evidence for Use in Acute Musculoskeletal Pain and Spasm

This section will summarize the types of clinical studies, such as randomized controlled trials and observational data, that was studied for conditions characterized by fluctuating or episodic manifestations like acute low back pain and muscle contracture. It will describe the main outcomes monitored by researchers, including changes in patient-reported outcomes describing perceived discomfort and outcomes reflecting daily functioning or activity level.

Research has explored this fixed-dose combination in adult outpatients experiencing conditions involving periods of heightened symptoms and associated involuntary muscle tension. The studies were evaluated in research examining symptom intensity or variability and outcomes related to physical discomfort. Some pilot studies and comparative trials data show patterns related to pain intensity measured over short timeframes. Studies report how symptoms evolved in the observed populations during the acute treatment period, and findings contribute to understanding symptom patterns during periods of increased symptom activity.


Study Design and the Quality of Evidence

When assessing the overall certainty of the findings, scientific reviews often categorize the existing evidence as moderate to low-level. This is primarily because the research landscape includes a mix of study types, and there is not yet an abundance of large-scale, placebo-controlled trials specifically for the Diclofenac/Pridinol fixed combination. The available research provides context but not individual predictions. Evidence quality varies across studies, and many reports rely on comparing the combination to another active drug rather than to a placebo or an inactive control.


Long-Term Studies and Follow-up Duration

The research exploring this combination was evaluated in trials assessing short-term or episodic symptom patterns. Most clinical evaluations studies monitored outcomes only over a defined time interval, typically lasting seven to fifteen days, meaning that follow-up durations were limited. As a result, there is limited information for long-term outcomes. Long-term effects are not fully established, and this continues to be an area where more data are still emerging.

Key Studies & References

  1. Efficacy and Safety of the Combination of Diclofenac and Thiocolchicoside in the Treatment of Low Back Pain and Other Conditions: Systematic Review of the Literature
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Frequently Asked Questions (FAQ)

Common questions about Diclolabsa Relax (FAQ)

Q: Is Diclolabsa Relax a type of benzodiazepine or a tricyclic medicine?

According to official product information, Diclolabsa Relax is a fixed-dose combination of two different active ingredients.

It contains Diclofenac, which is a non-steroidal anti-inflammatory drug (NSAID), and Pridinol, which is a centrally acting muscle relaxant. Neither of these ingredients is classified as a benzodiazepine nor as a tricyclic medicine.

Q: How quickly does Diclolabsa Relax start to work after a person takes it?

Regulatory documents describe the absorption of the active ingredients, which gives an indication of onset.

The Diclofenac component is typically absorbed relatively quickly, often reaching its highest concentration in the bloodstream around 1.5 to 2.0 hours after administration, based on how the body processes the medication. Taking the medication with food may slow down this absorption process.

Q: How long does the effect of Diclolabsa Relax usually last?

Prescribing information indicates that the medication is typically administered multiple times per day, which reflects the duration of the drug’s action.

For example, the plasma half-life of the Diclofenac component is approximately 1 to 2 hours.

Q: What is the half-life of Diclolabsa Relax and what does that mean for me?

The terminal plasma half-life of the Diclofenac component is approximately 1 to 2 hours. The half-life is a measure used in pharmacology that refers to the time it takes for the concentration of the drug in the blood to be reduced by half.

This information is used by prescribers to determine the appropriate administration schedule.

Q: Does Diclolabsa Relax cause drowsiness or make people feel sleepy?

Yes, official regulatory documents list drowsiness (somnolence) as a reported side effect associated with the central nervous system effects of the medicine's ingredients.

The presence of this side effect is noted in the product information.

Q: Is Diclolabsa Relax classified as a controlled substance with potential for dependence?

The active ingredients, Diclofenac (an NSAID) and Pridinol (an antimuscarinic muscle relaxant), are generally not classified as controlled substances in major regulatory systems.

However, official warnings related to the muscle relaxant class note that dependence and withdrawal effects are risks associated with long-term use.

Q: Is it possible to develop a tolerance to Diclolabsa Relax over time?

While the term tolerance is not explicitly noted in regulatory documents, official guidance related to the muscle relaxant class may note that dependence and withdrawal symptoms are risks associated with long-term use.

This potential is why treatment duration is often limited to the shortest time necessary.

Q: Can Diclolabsa Relax cause rebound muscle spasms if stopped suddenly?

Regulatory guidance for certain muscle relaxants includes information that stopping treatment should be done under medical supervision to help prevent potential withdrawal effects.

Although the term 'rebound muscle spasms' is not specifically used, gradual cessation is generally part of the safety information for this drug class.

Q: Does Diclolabsa Relax interact with common herbal supplements or vitamins?

Regulatory documents do not provide a comprehensive list for all herbal supplements or vitamins.

However, supplements that affect liver enzymes (such as the CYP2C9 pathway) or have anti-clotting effects may interact with the Diclofenac component. Consulting a healthcare provider about all supplements and vitamins being taken is important for safe use.

Q: Are there any foods or drinks, like grapefruit juice, that should be avoided while taking Diclolabsa Relax?

The product labeling for the Diclofenac component explicitly warns that consuming alcohol increases the documented risk of serious gastrointestinal bleeding.

Grapefruit juice can interact with liver enzymes that affect some medications, and information regarding this specific interaction should be discussed with a healthcare provider.

Q: Does Diclolabsa Relax affect the way birth control pills work?

Regulatory information indicates that the Diclofenac component may interact with certain hormones.

It may increase the blood levels of components in combined oral contraceptives or potentially increase the risk of hyperkalemia. Patients who use hormonal contraceptives should discuss this information with a healthcare provider.

Q: Why do some people say Diclolabsa Relax can help with sleep?

Official information states that a side effect of the muscle relaxant component, Pridinol, is drowsiness (somnolence).

This central nervous system effect is likely the reason why some individuals may feel that the drug assists with sleep, but it is not its primary approved indication.

Q: Are there any common health screen results that Diclolabsa Relax might affect?

Yes, official safety information indicates that the use of the Diclofenac component may lead to abnormal laboratory results.

These can include changes such as elevated liver enzyme levels (transaminases) and changes in blood cell counts. Healthcare providers may choose to monitor blood pressure and kidney function during treatment.

Q: What is the difference between muscle spasticity and muscle spasm related to the drug’s function?

The drug is officially indicated for the relief of pain associated with muscle spasm and involuntary muscle contracture.

Regulatory indications specify this use and generally do not include the treatment of muscle spasticity, which is a separate condition associated with central nervous system disorders.

Q: Are there any known issues with taking Diclolabsa Relax before or after a scheduled surgery?

Official documents state the medication is contraindicated for use in the setting of coronary artery bypass graft (CABG) surgery.

Due to the blood-thinning potential of the Diclofenac component, a healthcare provider will determine if and when the medication should be paused prior to an operation.

Q: Is it necessary to avoid caffeine while taking Diclolabsa Relax?

There is no specific official warning to universally avoid caffeine while using this medicine.

However, in combination with certain other medications, components of the drug may slow the body's breakdown of caffeine. Any concerns regarding caffeine intake are best addressed by a prescriber.

Q: Can patients with pre-existing heart rhythm issues use Diclolabsa Relax?

Official eligibility rules state the medication is contraindicated in patients with established cardiovascular disease, such as heart failure.

Additionally, the Pridinol component’s anticholinergic effects can include cardiovascular effects such as tachycardia (rapid heart rate) or arrhythmia, requiring medical oversight and caution.

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How should Diclolabsa Relax be stored and disposed of?

Official Storage and Disposal Instructions

Storing Diclolabsa Relax (Diclofenac/Pridinol tablets) must adhere to specific regulatory guidelines to maintain its stability and effectiveness. The medicine must be kept at controlled room temperature, generally between 20 C and 25 C (68 F and 77 F).

Do not refrigerate or freeze the tablets. The product must be stored in its original, tightly closed container and protected from light and moisture to prevent degradation. It is mandatory to keep this medicine out of the sight and reach of children.

For disposal, do not throw the tablets down the toilet or sink. Unused or expired medication should be disposed of through a drug take-back program. If one is unavailable, follow local governmental instructions for proper household trash disposal, often involving mixing the medicine with an undesirable substance.

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

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