Diclofenac Fladic

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Medically reviewed

Rosario Oropesa

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 Diclofenac Fladic

What is Diclofenac Fladic? (Concise Overview)

Property Description
Active ingredient Diclofenac (as sodium or potassium salt)
Form Available in tablets, topical gels, and solutions
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Common purpose Symptomatic relief of pain and inflammation
Origin Synthetic (Phenylacetic acid derivative)

What Type of Medicine is Diclofenac Fladic?

Diclofenac Fladic is the name for a medicine whose active ingredient, Diclofenac, is globally classified as a potent Nonsteroidal Anti-Inflammatory Drug (NSAID). This classification reflects its dual capacity to reduce both pain sensation and the physical process of inflammation.

The core chemical, Diclofenac, is a synthetic substance belonging to the phenylacetic acid derivative family. This molecular origin ensures the drug possesses the fundamental analgesic and anti-inflammatory properties characteristic of its class, making it a cornerstone agent clinically recognized for managing musculoskeletal discomfort.


Composition and General Role

The medication’s effectiveness relies on its single active ingredient, Diclofenac, which is typically formulated as the sodium or potassium salt to optimize its delivery and stability. For example, the potassium salt is generally chosen when rapid absorption is desired for acute symptomatic relief. Diclofenac Fladic is positioned within the market as a reliable formulation of the versatile INN, often available by prescription, unlike some low-dose, over-the-counter alternatives.

Due to its ability to interrupt the body’s inflammatory chemical pathways, the general role of Diclofenac Fladic is to control the adverse physical and sensory effects of inflammation. Both oral and topical Diclofenac products provide confirmed symptomatic improvement for various pain states. This means the medication can offer effective relief from localized swelling and discomfort, which is a typical requirement in managing general rheumatic pain.

Regulatory References

  1. Diclofenac - StatPearls - NCBI Bookshelf

What side effects are possible with Diclofenac Fladic?

Diclofenac Fladic: Possible Side Effects and Safety Information

Diclofenac Fladic is a nonsteroidal anti-inflammatory drug (NSAID) and carries the risks associated with this class of medication. It is crucial to use the lowest effective dose for the shortest possible duration to minimize the risk of serious side effects.


Serious Warnings and Precautions

Diclofenac can increase the risk of serious cardiovascular (CV) thrombotic events, including heart attack and stroke, which can be fatal. This risk may increase with duration of use and for patients with pre-existing heart disease or risk factors. It is contraindicated for pain treatment after coronary artery bypass graft (CABG) surgery.

NSAIDs also increase the risk of serious gastrointestinal (GI) adverse events, such as bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These can occur without warning symptoms, and the risk is higher in the elderly or those with a history of GI issues. Diclofenac use may also cause or worsen hypertension and can lead to fluid retention and edema.


Common Side Effects

Common side effects, which are generally milder, can include:

System Possible Effects
Gastrointestinal Nausea, vomiting, diarrhea, constipation, indigestion, abdominal pain
Nervous System Headache, dizziness, drowsiness
Other Swelling (edema), skin rash, tinnitus (ringing in the ears)

When to Seek Immediate Medical Attention

Stop taking Diclofenac Fladic and seek emergency medical help if you experience signs of a serious reaction, including chest pain, sudden shortness of breath, weakness on one side of the body, slurred speech, black or bloody stools, persistent abdominal pain, vomiting blood, or signs of a severe allergic reaction such as swelling of the face or throat and difficulty breathing.

Overdose and Emergency Response

Overdose and When to Seek Help

A suspected overdose of Diclofenac Fladic requires immediate emergency medical attention, as regulatory documents confirm that no specific antidote is known. The official guidance mandates that you must seek immediate medical attention or emergency help right away if overdose is suspected, contacting a poison control center or emergency services.

Documented manifestations may include gastrointestinal symptoms (e.g., nausea, vomiting, stomach pain, or GI bleeding) and CNS effects (drowsiness, dizziness, confusion). Urgent attention is required due to the risk of serious and life-threatening outcomes, including acute renal failure, liver failure (fulminant hepatitis), and severe gastrointestinal events like perforation. These outcomes can be fatal.

Management is strictly symptomatic and supportive. Regulatory procedures may include administering activated charcoal or performing gastric lavage for recent, large ingestions, alongside intensive monitoring of vital signs, ECG, and blood tests to assess for organ damage. Official labeling notes that overdose is harmful to both children and adults, and elderly patients face an increased risk of serious gastrointestinal complications.

Therapeutic Uses of Diclofenac Fladic

What Diclofenac Fladic Treats: Main Uses and Benefits

Diclofenac Fladic, as a Nonsteroidal Anti-Inflammatory Drug (NSAID), is commonly used across domains where additional symptomatic support is needed to address symptoms related to inflammatory or irritative states. This generally helps relieve symptoms that interfere with daily functioning.

The medication is considered relevant in conditions characterized by periods of heightened symptoms, such as Osteoarthritis (OA) and Rheumatoid Arthritis (RA), as well as situations involving recurrent or episodic manifestations like acute migraine attacks and primary dysmenorrhea (menstrual cramps). It is often used during phases when symptoms become more noticeable, including managing acute pain following minor surgical procedures or physical trauma like sprains and contusions. It provides support that helps ease the overall symptom burden by moderating the intensity of these sudden, high-intensity symptoms.

This supportive relief contributes to easing the overall symptom load and assists with maintaining functional stability in conditions like Osteoarthritis, while helping to ease disruptive symptom intensity during episodes like acute migraine. In all these scenarios, the medication may help patients cope more steadily with symptom fluctuations.


Quick Facts: Symptom Management Domains

Therapeutic Domain Conditions Category Primary Patient Benefit
Chronic Symptoms Conditions marked by increased physiological stress (OA, RA) Supports stable day-to-day comfort
Acute Symptoms Situations involving acute or disruptive episodes (Trauma, Surgery) Assists with maintaining functional stability
Episodic Symptoms Conditions involving recurrent or fluctuating manifestations (Migraine, Dysmenorrhea) Helps ease symptoms that create noticeable functional strain

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Diclofenac Fladic?

Eligibility for Diclofenac is strictly governed by pre-existing patient conditions and physiological status, as defined in regulatory labeling.

Absolute Contraindications (Must Not Use)

Diclofenac is absolutely contraindicated for patients who have:

  • A known hypersensitivity to diclofenac, aspirin, or any other NSAID.
  • Experienced asthma, urticaria, or allergic reactions after taking other NSAIDs.
  • Active gastrointestinal (GI) bleeding, ulceration, or perforation.
  • Established congestive heart failure (NYHA class II–IV).
  • Established ischaemic heart disease, peripheral arterial disease, or cerebrovascular disease.
  • Passed into the third trimester of pregnancy (at or after 30 weeks gestation).

Populations Requiring Special Caution

Treatment must only be initiated after careful assessment and at the lowest effective dose for the shortest duration for:

  • Patients with a history of GI ulceration or bleeding.
  • Patients with significant cardiovascular risk factors (e.g., hypertension, hyperlipidaemia).
  • Patients with severe renal or hepatic impairment.

Age and Reproductive Status

Systemic use is generally not established for children under 12 years of age. Use during breastfeeding is generally not recommended by some authorities due to excretion into breast milk. Older adults must be closely monitored due to increased risk of serious GI and renal events.

What should I know about interactions with other medicines?

Diclofenac Fladic Interactions with other medicines and products

Official regulatory documents classify the interactions of Diclofenac Fladic based on their potential for pharmacokinetic (exposure) changes or pharmacodynamic (effect) reinforcement.


Interaction Scope

Category Official Regulatory Information
Medicinal product categories with documented interactions: NSAIDs, Anticoagulants, Antiplatelet agents, Diuretics, ACE Inhibitors, Angiotensin Receptor Blockers (ARBs), SSRIs, SNRIs, Corticosteroids
Specific interacting medicines (if explicitly listed): Aspirin, Voriconazole, Digoxin, Lithium, Methotrexate
Mechanistic basis of interactions (only if stated in label): Pharmacokinetic interaction involving inhibition of CYP enzymes (CYP2C9, CYP2C19, CYP3A4), resulting in increased drug exposure; Pharmacodynamic interaction (additive risk of GI events or enhanced bleeding risk; reduced antihypertensive effect)
Timing-based interaction rules (if applicable): Food administration with certain rapid-release oral formulations may reduce product effectiveness
Population-specific interaction notes (if applicable): Patients who are elderly, volume-depleted, or renal-impaired require closer monitoring for worsening renal function when co-administered with ACE Inhibitors/ARBs

Interaction Classifications (High-Level)

Classification Official Regulatory Information
Interaction severity classification (as defined in official documents): Contraindicated (e.g., peri-operative CABG pain, specific allergy history); Clinically significant (e.g., requires monitoring due to altered exposure or heightened risk)
Regulatory basis (EMA / FDA / etc.): FDA Prescribing Information, EMA Summary of Product Characteristics (SmPC), NIH MedlinePlus
Interaction-context constraints (as defined in official documents): CABG surgery setting, history of aspirin-sensitive asthma/urticaria, co-administration of strong CYP inhibitors (e.g., Voriconazole)

Official interaction statements:

  • Co-administration is formally contraindicated in the setting of peri-operative pain following coronary artery bypass graft (CABG) surgery.
  • Co-administration with Voriconazole is documented to be a pharmacokinetic interaction that increases Diclofenac’s C max by 114% and AUC by 78%.
  • Concurrent use with Aspirin or other NSAIDs results in a pharmacodynamic interaction that significantly increases the risk of serious gastrointestinal events.
  • Diclofenac can increase the plasma concentration of co-administered medicines including Digoxin, Lithium, and Methotrexate.
  • Administration with Diuretics or ACE Inhibitors/ARBs may reduce the antihypertensive or natriuretic effect of those medicines.
  • The label notes that concurrent use with alcohol may increase the risk of gastrointestinal problems.

Connection to the overall interaction profile (2–4 sentences): The regulatory documents structure the Diclofenac Fladic interaction profile around official prohibitions (contraindications) and clinically significant interactions that modify drug exposure or reinforce pharmacodynamic risk. Exposure-modifying interactions are documented with strong enzyme inhibitors like Voriconazole and efflux-sensitive drugs like Digoxin and Lithium, which increase circulating plasma levels. The most prominent pharmacodynamic constraints relate to the heightened risk of bleeding and gastrointestinal toxicity when combined with other agents that affect hemostasis or the GI mucosa.

Mechanism of Action

How Diclofenac Fladic Works: The Core Mechanism

Diclofenac functions as a reversible and competitive inhibitor of the Cyclooxygenase ( COX) enzymes, targeting both the inducible COX-2 and the constitutive COX-1 isoforms. This binding to the enzyme's active site blocks the conversion of Arachidonic Acid into Prostaglandins and other Prostanoids, thereby arresting a key step in the Arachidonic Acid Cascade .

The resulting reduction in Prostaglandin E2 ( PGE2) concentration initiates two parallel physiological cascades. Peripherally, the lack of PGE2 prevents the hyper-sensitization of nociceptors (pain-sensing nerves), leading to decreased afferent signal transmission. Centrally, Diclofenac's action within the hypothalamus facilitates the reversal of the elevated thermoregulatory set point, a mechanism achieved by modulating PGE2 levels in the central nervous system.

This pharmacological action is classified as non-selective, meaning the mechanism influences both the pathological pathways (mediated by COX-2) and the basal physiological pathways maintained by COX-1, defining the drug's broad systemic physiological scope.

Dosage and Administration Information

Official Routes and Dosage Forms

Diclofenac Fladic is available for administration via several routes, including oral forms such as delayed-release, extended-release, and immediate-release tablets, capsules, and powder for solution. The medicine is also utilized through topical applications (gels, solutions, patches) and parenteral routes, including intravenous injection and rectal suppositories.


Dosing and Administration Schedule

Use of the medicine is guided by the principle of employing the lowest effective dose for the shortest duration necessary to achieve symptomatic goals.

Administration Pattern Labeled Instructions
Standard Oral Dose The oral daily dose for chronic conditions like Osteoarthritis typically ranges from 100 mg to 150 mg, often administered in divided doses.
Frequency Pattern Extended-release 100 mg tablets are generally taken once daily. Other forms may be taken multiple times per day.
Acute Dose For acute episodes, such as a migraine attack, a single, one-time dose of 50 mg (oral solution) is authorized.

Contextual Instructions and Precautions

Oral dosage forms require specific intake procedures. Tablets, particularly those with controlled-release mechanisms, must be swallowed whole and must not be crushed, split, or chewed to preserve their intended drug release profile. While some tablets may be taken with food, immediate-release forms are often recommended on an empty stomach for optimized absorption.

When preparing the oral powder, it must be mixed only with 1 to 2 ounces of plain water and consumed immediately. For patient subgroups, such as frail older adults, it is emphasized that treatment should be initiated at the lowest possible dose. If a dose is missed, it should be skipped if the next dose is imminent, and double doses must never be taken.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Diclofenac Fladic

This overview describes the scope of clinical research conducted for Diclofenac Fladic, focusing on the types of studies that exist and the patient groups that have been examined by regulatory and scientific bodies. The information presented here summarizes the research landscape and does not offer clinical advice.


Evidence for Use in Chronic Osteoarthritis (OA) Pain

The research base for Diclofenac Fladic was evaluated in research contexts involving fluctuating or unstable symptoms, such as Chronic Osteoarthritis (OA) pain. The research includes Randomized Controlled Trials (RCTs), alongside comprehensive Systematic Reviews and Meta-Analyses. Observational studies also contribute by evaluating daily-life functioning and are relevant in studies examining patient-reported experiences. Studies have explored outcomes related to physical discomfort and changes in daily functioning or activity level. While studies report measurements observed over short-term periods (typically 6 to 12 weeks), long-term effects are not fully established beyond the one-year mark of the observational cohorts.


Evidence for Use in Acute Musculoskeletal Injuries

Research for acute musculoskeletal injuries, such as sprains, strains, and pain following minor surgical procedures, is primarily based on short-term, placebo-controlled RCTs. These studies are relevant in trials assessing short-term or episodic symptom patterns. Research examined temporary physiological imbalance by monitoring outcomes describing episodic or acute changes, such as pain intensity. Follow-up durations were limited in many of these trials. The evidence for certain specific formulations relevant to every type of acute injury is still emerging, and research highlights the need for more standardized reporting.


Evidence in Specific Patient Populations and Uncertainties

Diclofenac Fladic was also evaluated in research contexts involving fluctuating or unstable symptoms, including Rheumatoid Arthritis (RA). Research has examined various patient groups, including the older adult population and selected cohorts of children and adolescents (primarily for acute pain following surgery). The results apply only to the populations studied. Key research limitation frames include modest sample sizes in some studies and evidence quality varies across studies. The research does not determine whether an individual will respond similarly to group patterns.

Key Studies & References

  1. Diclofenac for acute postoperative pain in children (Cochrane Database Systematic Review)

Frequently Asked Questions (FAQ)

Common questions about Diclofenac Fladic (FAQ)


Q: Why is Diclofenac Fladic sometimes available only by prescription?

According to official product information, certain formulations of Diclofenac Fladic are available only by prescription. This is generally due to the drug's potency and the potential for serious side effects, such as cardiovascular events or kidney issues, which is subject to medical oversight.


Q: What are the most common things people take Diclofenac Fladic for?

Official documents state that Diclofenac Fladic is indicated for the symptomatic relief of pain and inflammation. It is commonly used to manage chronic conditions like osteoarthritis and rheumatoid arthritis, as well as acute pain episodes, including certain authorized uses for migraine headaches.


Q: Can Diclofenac Fladic be used for migraines or only body pain?

Yes, specific oral formulations of Diclofenac Fladic are authorized for the acute treatment of migraine headaches in adults. This is in addition to its more general use for managing pain and inflammation related to musculoskeletal conditions.


Q: How quickly should I expect Diclofenac Fladic to start working?

Official regulatory information indicates that the time it takes for the medicine to reach its peak concentration in the body is generally a few hours for oral forms. However, the time required for a patient to feel noticeable pain relief can vary depending on the specific product formulation they are using (e.g., immediate or delayed release).


Q: How long does the effect of Diclofenac Fladic usually last?

The active substance, diclofenac, has a terminal elimination half-life that is generally short, around one to two hours. The overall duration of the clinical effect, meaning how long the relief lasts, can be influenced by the specific drug formulation and individual body factors.


Q: Is Diclofenac Fladic addictive in any way?

Regulatory agencies do not classify Diclofenac Fladic as a controlled substance. Therefore, the medicine is not considered to carry a risk of physical dependence or addiction.


Q: What are the signs that Diclofenac Fladic might be bothering my liver?

Official warnings on the product label instruct patients to be monitored for potential liver problems during use. Signs of a liver reaction may include feeling tired or lethargic, experiencing a lack of appetite or nausea, or noticing a yellowing of the skin or eyes (jaundice).


Q: Do I need to take Diclofenac Fladic with food?

Instructions for taking the medicine vary by the specific formulation. Some forms, like immediate-release tablets, are often recommended on an empty stomach for better absorption. Other types of tablets may be taken with food, as specified in the official product information.


Q: Can I use Diclofenac Fladic if I have high blood pressure?

Official warnings note that Diclofenac can potentially cause new high blood pressure or worsen existing hypertension. The regulatory label indicates that use in this population is subject to caution, and blood pressure monitoring is described as necessary during treatment.


Q: Is Diclofenac Fladic considered a blood thinner?

Diclofenac Fladic is not classified as an anticoagulant (a type of blood thinner). However, because it can inhibit the function of platelets (cells involved in blood clotting), combining it with actual blood-thinning medications significantly raises the risk of serious bleeding events.


Q: What common over-the-counter medicines should not be taken with Diclofenac Fladic?

Official regulatory guidance describes avoiding the combination of Diclofenac Fladic with aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen. Taking these together increases the risk of serious gastrointestinal side effects, including bleeding.


Q: Is there any risk from using Diclofenac Fladic while taking an antidepressant?

Official regulatory labels indicate that using Diclofenac Fladic concurrently with certain antidepressants, specifically SSRIs or SNRIs, can increase the risk of serious side effects. This combination interaction primarily relates to a heightened risk of gastrointestinal bleeding.


Q: Can Diclofenac Fladic be used by people who are 65 or older?

The medicine can be used by older adults (aged 65 and above), but official guidance indicates that treatment in this population is typically started at the lowest possible dose, and close monitoring is required. This is due to a greater risk of serious side effects involving the stomach, heart, and kidneys.


Q: Is Diclofenac Fladic approved for use in children?

Official product information indicates that systemic use (tablets, etc.) is generally not established for children under 12 years of age. When authorized for use in children or adolescents, the dosage is subject to specific determination by a healthcare professional.


Q: How long can a person generally use Diclofenac Fladic before needing a break?

Regulatory instructions advise using the lowest effective dose for the shortest duration necessary to control symptoms. This principle is intended to minimize potential risks, as the medicine is generally not intended for continuous or long-term use.


Q: Does Diclofenac Fladic interact with herbal supplements?

Official regulatory guidance states that patients must ensure their healthcare providers are aware of all supplements, vitamins, and herbs being taken. This is because certain herbal supplements, such as those that might affect blood clotting, could potentially increase the risk of side effects like bleeding.


Q: What should I do if I feel unusually tired after using Diclofenac Fladic?

While drowsiness is listed as a common side effect, unusual tiredness or lethargy is also listed in official warnings as a potential sign of a serious liver reaction. Official warnings state that any persistent or unusual tiredness may require evaluation by a healthcare professional.


Q: Are there any specific foods to avoid when taking Diclofenac Fladic?

Official regulatory information explicitly states that the consumption of alcohol while using Diclofenac Fladic may increase the risk of gastrointestinal side effects. No specific food groups are universally advised to be avoided.


Q: Is Diclofenac Fladic commonly used in other countries?

Diclofenac is a globally recognized and well-established medicine that has been widely used across numerous countries. The core ingredient often appears on the World Health Organization's list of Essential Medicines.


Q: Can Diclofenac Fladic affect my ability to drive?

Official product information calls for caution when driving or operating heavy machinery. This instruction is necessary because common side effects of the medicine can include dizziness, drowsiness, or disturbances to vision.


Q: Does Diclofenac Fladic make people more sensitive to the sun?

Yes, some formulations, particularly the topical products, carry a warning about potential photosensitivity reactions. Photosensitivity is a skin reaction that may occur after exposure to sunlight or artificial ultraviolet (UV) light while using the medicine.


Q: Is it safe to use Diclofenac Fladic before or after minor surgery?

The medicine is strictly forbidden (contraindicated) for pain treatment immediately before or after a coronary artery bypass graft (CABG) surgery. Official documents state that the use of the medicine before or after other types of surgery is subject to careful assessment by a healthcare professional.


Q: Does Diclofenac Fladic interact with seizure medications?

Official labels advise caution when using this medicine alongside other drugs known to potentially affect the liver, which includes certain anti-epileptic or seizure medications. The full interaction profile is the necessary source for specific interaction details.


Q: Can Diclofenac Fladic cause changes to sleep patterns?

Common side effects listed in official documents include central nervous system effects such as dizziness and drowsiness. While changes to overall sleep patterns or insomnia are not typically listed, these effects may influence a person's ability to sleep or level of rest.

How should Diclofenac Fladic be stored and disposed of?

Storage and Disposal Requirements

Official regulatory documentation outlines specific requirements for storing and disposing of Diclofenac formulations to ensure product quality and safety.

Storage Condition Type Requirement
Temperature Store at controlled room temperature (20 C to 25 C) [1, 2].
Prohibited Environment Must be kept from freezing [1, 2].
Protection Protect from moisture and keep the container tightly closed [3, 4].
Packaging Keep the medicine in its original container [4].

All forms of this medicine must be kept out of the reach of children [2, 4]. Unused or expired product must be disposed of according to local regulations for pharmaceutical waste [5]. General guidance advises against flushing unused medicines down the toilet unless explicitly instructed on the product label.

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

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