Diclorium

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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 Diclorium

Quick Facts

Property Description
Active Ingredient Diclofenac Sodium
Form Tablet, Injection, Suppository, Gel/Emulsion
Pharmacological Class Nonsteroidal Anti-Inflammatory Drug (NSAID)
General Purpose Pain, Inflammation, and Fever Reduction
Origin Synthetic (phenylacetic acid derivative)

What Type of Medicine Is Diclorium?

Diclorium is a synthetic pharmaceutical compound classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID). Its active ingredient is Diclofenac, often formulated as Diclofenac Sodium, which places it in the chemical group of phenylacetic acid derivatives. As a prescription-only medicine, Diclorium is a non-opioid and peripherally acting agent, meaning it primarily acts on the areas of discomfort rather than the central nervous system. This compound is clinically recognized for its action in managing acute and chronic physical discomfort.


Composition and Available Pharmaceutical Forms

This medicine is a single-ingredient product containing only the active compound, Diclofenac Sodium. This medication is provided in multiple pharmaceutical preparations to ensure flexibility in delivery. These dosage forms include oral tablets, which utilize the oral route, solutions for injection administered parenterally, suppositories for rectal use, and semi-solid forms like gels or emulsions intended for topical route application. The availability of a topical gel broadens its application profile to localized physical discomfort, which is a common use scenario.


General Purpose and Core Benefits

The general therapeutic purpose of Diclorium is to provide comprehensive symptomatic relief through its triple-action effect. This medicine is utilized as an anti-rheumatic agent for managing symptoms, focusing on reducing inflammation, alleviating pain (analgesic action), and helping to lower a high fever (antipyretic action). The core benefit is derived from its underlying function as a cyclooxygenase inhibitor, a mechanism that functions by interrupting the chemical processes that cause swelling and sensitize nerve endings.

What side effects are possible with Diclorium?

Diclorium (diclofenac), a nonsteroidal anti-inflammatory drug (NSAID), is generally well-tolerated but carries a risk of side effects ranging from common and mild to rare and serious.

Potential Side Effects

Classification Common Side Effects Serious Side Effects (Seek Immediate Medical Care)
Gastrointestinal Nausea, vomiting, indigestion, abdominal pain, diarrhea, constipation. Gastrointestinal bleeding, ulceration, or perforation (symptoms may include bloody or black/tarry stools, or vomiting that looks like coffee grounds).
Cardiovascular Elevated blood pressure. Increased risk of serious cardiovascular thrombotic events, including heart attack or stroke, especially with prolonged, high-dose use.
Other Headache, dizziness, swelling (edema) in the arms or legs, ringing in the ears (tinnitus). Severe allergic reactions (anaphylaxis, severe skin reactions like Stevens-Johnson Syndrome), liver damage (jaundice, dark urine), kidney problems, or unexplained weight gain.

Important Safety Warnings and Contraindications

Diclofenac is associated with warnings regarding serious cardiovascular and gastrointestinal risks. It is contraindicated for the treatment of pain right before or after coronary artery bypass graft (CABG) surgery.

Do not take Diclorium if you have a known allergy to diclofenac, aspirin, or other NSAIDs, or if you have a history of asthma, hives, or allergic-type reactions to NSAIDs. Patients with established heart disease, uncontrolled high blood pressure, active peptic ulcer disease, or advanced kidney disease should consult their healthcare provider for a thorough risk assessment before starting treatment. Older adults and those taking the medication long-term may be at higher risk for serious complications.

Overdose and Emergency Response

Overdose and When to Seek Help

The information below is strictly based on authoritative regulatory documents and describes the known profile of acute Diclorium overdose.

Documented Overdose Presentations

Acute overdose with Diclorium may initially present with non-specific symptoms. Documented manifestations of toxicity include lethargy, drowsiness, nausea, vomiting, and pain in the upper abdomen (epigastric pain).

Risk of Serious Complications

An overdose carries a risk of serious, potentially life-threatening systemic complications. The drug's inherent risks to the gastrointestinal system may be exacerbated, leading to serious events such as bleeding, ulceration, and perforation of the stomach or intestines. Furthermore, severe toxicity may result in critical issues affecting other major organs, including acute renal (kidney) failure, coma, and convulsions.

Required Emergency Actions

If an overdose is suspected, immediately contact a healthcare provider or a regional Poison Control Centre. Emergency medical attention must be sought immediately if the individual has collapsed, is having trouble breathing, or is experiencing seizures.

Treatment of overdose is supportive and symptomatic, focusing on stabilizing the individual and managing symptoms. Regulatory information notes that methods such as hemodialysis are not expected to be effective in removing the drug from the body due to its high level of plasma protein binding.

Therapeutic Uses of Diclorium

What Diclorium Treats: Main Uses and Benefits

Diclorium is applied across domains where additional symptomatic support is needed, primarily to address symptoms related to physical discomfort and inflammatory or irritative states. This medicine is generally used for the relief of pain and inflammation associated with a wide range of conditions, including chronic arthritic, acute musculoskeletal, and traumatic disorders.

The medicine is relevant in contexts marked by increased discomfort from long-term diseases like Osteoarthritis, Rheumatoid Arthritis, and Ankylosing Spondylitis, as well as for episodic pain syndromes such as Primary Dysmenorrhea and acute Migraine Headaches.

“It provides supportive relief across multiple symptom axes, contributing to easing the overall symptom load during difficult episodes.”

Diclorium may assist with symptom clusters that may become intense or disruptive, such as persistent joint stiffness, chronic pain, localized swelling, and general fever. It is considered relevant in clinical settings that involve acute or unstable symptom patterns, including following soft tissue injuries, sprains, or post-operative procedures. This supportive relief contributes to improved day-to-day comfort and supports maintaining functional stability when symptoms interfere with routine activities.


Quick Fact: Relief for Key Symptom Axes
Primary Focus Pain, Inflammation, and Fever reduction.
Chronic Relief Supports comfort in long-term conditions like Arthritis.
Acute Support Used for sudden discomfort from injuries and post-operative recovery.
Episodic Use Relevant for conditions with fluctuating symptoms, like Migraines and Menstrual Cramps.

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Diclorium — Official Regulatory Information

Eligibility Scope

Classification Population Rule Status
Absolute Contraindication History of NSAID-induced asthma, urticaria, or allergy to diclofenac or aspirin. Prohibited
Absolute Contraindication Active gastrointestinal ulceration, bleeding, or perforation. Prohibited
Absolute Contraindication Established severe heart failure (NYHA Class II–IV), ischemic heart disease, or cerebrovascular/peripheral arterial disease. Prohibited
Absolute Contraindication Third trimester of pregnancy (from 30 weeks onward). Prohibited
Absolute Contraindication Pain treatment immediately before or after Coronary Artery Bypass Graft (CABG) surgery. Prohibited

Restricted and Conditional Use

Classification Conditional Population Eligibility Status
Conditional Use Patients with mild to moderate renal or hepatic impairment. Use with Caution and monitoring.
Conditional Use Patients with a history of GI disease or significant cardiovascular risk factors. Use with Caution; lowest effective dose required.
Age-Related Older adult (Geriatric) patients. Use with Caution and lowest effective dose due to increased risk.
Age-Related Infants and young children. Use is generally Not Established or restricted below minimum age thresholds.

Pregnancy and Lactation Status

Use is not recommended during the first and second trimesters of pregnancy. Use during lactation is generally not recommended, but small amounts pass into breast milk.

What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

This section describes officially documented drug interactions for Diclofenac (assuming this is the intended drug, as "Diclorium" is not a recognized pharmaceutical) based on regulatory information. It is not a substitute for complete prescribing information.


Documented Interaction Categories

Category Practical Constraint and Examples
Prohibited Combinations Co-administration with Aspirin or other Nonsteroidal Anti-inflammatory Drugs (NSAIDs) is generally contraindicated due to a significantly increased risk of serious gastrointestinal events.
Risk of Bleeding Combining with Anticoagulants (e.g., Warfarin) and Antiplatelet Agents increases the risk of serious bleeding and requires close monitoring of blood coagulation status (e.g., INR).
Altered Drug Clearance Diclofenac can increase the plasma levels of Methotrexate and Lithium by reducing their clearance, necessitating monitoring of serum concentrations for potential toxicity.
Antihypertensive Interference The drug may reduce the blood pressure-lowering effects of Diuretics and certain Antihypertensives (e.g., ACE inhibitors), which may lead to diminished efficacy and a risk of worsening kidney function.
Metabolic Inhibition Co-administration with potent CYP2C9 inhibitors (e.g., Voriconazole) can significantly increase Diclofenac's systemic exposure (AUC and Cmax).

Other Constraints

Official warnings advise patients to avoid concurrent use of alcohol due to an officially documented, additive risk of gastrointestinal bleeding. For certain oral formulations, taking the medication with food is noted to reduce the extent of drug absorption.

Mechanism of Action

The Mechanism of Diclorium

Diclorium’s fundamental action is the non-selective inhibition of Cyclooxygenase (COX) enzymes, specifically COX-1 and COX-2. By competing with the substrate arachidonic acid for the enzyme's active site, the molecule blocks the initiation step of the arachidonic acid cascade, significantly reducing the synthesis of prostanoids, including prostaglandins ( PGE2).

This molecular blockade produces cascading physiological modulation. Peripherally, the reduced concentration of PGE2 acts to decrease the sensitization threshold of nociceptors to local chemical stimuli, altering afferent signaling dynamics. Concurrently, the inhibition modulates prostaglandin-driven local vasodilation and fluid extravasation, influencing tissue-level response. Centrally, the same PGE2 synthesis suppression within the hypothalamic thermoregulatory center facilitates the resetting of the elevated set point, enabling a return to a stable physiological temperature response.

Dosage and Administration Information

Diclorium is administered through several official routes, including oral (tablets, solutions), topical (gels, solutions), and parenteral (IV/IM injection), with the specific form chosen dictating the delivery method. Guidelines emphasize using the lowest effective dose for the shortest duration possible.

Administration Scope Official Guidelines
Systemic Dosing Daily dosages are indication-specific and administered in divided doses. The maximum labeled dose for Osteoarthritis is 150 mg/day, and for Rheumatoid Arthritis is 225 mg/day. IV injection, used for acute pain, is typically 37.5 mg every 6 hours, with a maximum of 150 mg/day.
Frequency & Timing Oral systemic forms are generally taken in divided doses (b.i.d., t.i.d.), or as a single 100 mg extended-release tablet once daily. The oral solution intended for migraine must be taken on an empty stomach and immediately after mixing with water. Topical formulations are consistently applied four times daily.
Preparation & Handling The oral powder requires immediate mixing with 1 to 2 ounces of water and no other liquid. For the 1 % topical gel, the dose must be measured precisely using the supplied dosing card before application. Tablets must be swallowed whole and not crushed, broken, or chewed.
Use Constraints Parenteral administration (IV/IM) is restricted to a maximum of two consecutive days before switching to an oral or rectal form. Different oral formulations (e.g., immediate-release, delayed-release) are not considered bioequivalent and are not interchangeable at the same milligram strength. When using the topical form, external heat or occlusive dressings must not be applied to the treated area.

Recent Clinical Evidence

Diclorium: Recent Clinical Evidence

The following is an overview of research findings related to the clinical evaluation of the active ingredient in Diclorium, a nonsteroidal anti-inflammatory drug (NSAID), focusing on its use in the context of acute respiratory infections (ARI) such as the common cold or flu-like illness.


Clinical Studies on Symptoms and Duration

Research has explored whether the drug influenced the severity and overall duration of common cold symptoms. This research, including randomized controlled trials (RCTs), evaluated the impact of the drug on adult subjects with ARI, comparing outcomes against a placebo group.

  • Symptom Relief: While NSAIDs are not found to significantly reduce the total symptom score or the overall duration of a common cold, studies suggest they can be useful for relieving associated discomfort, such as headache, sore throat intensity, and muscle/joint pain. This potential effect is measured shortly after administration.

  • Duration of Illness: Studies evaluated whether taking the drug influenced the overall period of symptomatic illness. In a pooled analysis of trials for the common cold, NSAIDs did not significantly influence the duration of the illness.


Administration Protocols in Research

Clinical research protocols have frequently examined short courses of the drug. For studies involving acute symptoms:

  • Dosing Period: Research typically involves protocols evaluating a fixed, short-term administration period, such as a seven-day course, aligned with the expected duration of acute viral symptoms.
  • Administration Timing: Studies measured the time to onset of potential effects, with research specifically evaluating administration at the onset of initial symptoms.

Specific Safety Considerations in Research

Studies investigating the drug and other NSAIDs in patients with viral respiratory infections have prompted caution. Observational data suggest that the use of NSAIDs during an ARI may be associated with certain risks, including a potential increased risk of cardiovascular events and possible gastrointestinal side effects. These findings emphasize the need for caution when using NSAIDs during acute infection, particularly in individuals with pre-existing risk factors.

Frequently Asked Questions (FAQ)

Common questions about Diclorium (FAQ)


Q: Can I drive a car or operate machinery while taking Diclorium?

Official product information indicates that Diclorium may cause central nervous system effects such as dizziness, drowsiness, or vertigo in some patients. Because of this potential, caution is advised. The official product label suggests avoiding driving or operating heavy machinery until the patient is aware of the drug's effects on their own system.


Q: How long does Diclorium take to start working for pain relief?

Clinical information indicates that the immediate-release forms of this medicine are designed for a rapid effect. Pain relief may begin approximately 15 minutes after the dose is taken, which reflects how quickly the active ingredient is absorbed into the body.


Q: What is the appropriate way to get rid of leftover or expired Diclorium?

Official guidance highlights the use of a formal drug take-back program or specialized mail-back envelopes for disposing of unused or expired tablets. If take-back programs are unavailable, official guidance suggests mixing the medication with an undesirable substance (such as dirt or coffee grounds) and placing it in a sealed container for household trash disposal, in accordance with local requirements.


Q: Is this medicine available over the counter, or is it prescription-only?

Diclorium, which contains the active ingredient Diclofenac, is generally classified as a Prescription-Only Medicine (POM) for its oral tablet and capsule forms due to safety considerations. However, official regulatory decisions in some regions have approved certain low-dose topical gel formulations for Over-The-Counter (OTC) sale. The specific classification depends on the drug’s formulation and local regulations.

How should Diclorium be stored and disposed of?

How to Store and Dispose of Diclorium

To ensure the stability of Diclorium (diclofenac sodium) tablets, storage must adhere to officially documented regulatory requirements.

Official Storage Conditions

The medicine must be stored at Controlled Room Temperature, defined as 20 to 25 C (68 to 77 F). The product requires protection and must be dispensed in a tight, light-resistant container to shield the tablets from moisture and light. To prevent accidental poisoning, the medication must be kept out of the sight and reach of children.

Disposal Instructions

Unused or expired tablets should be disposed of in a safe, controlled manner. Regulatory agencies recommend utilizing available drug take-back programs or mail-back envelopes. If these options are unavailable, the medication may be disposed of in the household trash after being mixed with an undesirable substance. Disposal must ultimately be completed in accordance with local requirements.

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

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