Aceclofenac/thiocolchicoside

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Aceclofenac/thiocolchicoside

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Overview of Aceclofenac/thiocolchicoside

Property Description
Active Ingredients Aceclofenac, Thiocolchicoside
Form Oral tablet, Capsule
Pharmacological Class Dual-action Analgesic, NSAID, Centrally acting SMR
General Purpose Relief of pain, inflammation, and muscle spasm
Origin Synthetic compound

Aceclofenac/thiocolchicoside is a Fixed-Dose Combination (FDC) product provided as an oral tablet or capsule for systemic administration. It is classified as a prescription medication, widely available globally under various regional brands. This combination is clinically recognized for its dual pharmacological approach to managing acute musculoskeletal pain.


What Type of Medicine is Aceclofenac/thiocolchicoside?

Aceclofenac/thiocolchicoside is categorized as a dual-action analgesic that combines an anti-inflammatory agent with a centrally acting skeletal muscle relaxant (SMR). It is a synthetic compound used in the management of musculoskeletal disorders.

This combination is differentiated from single-ingredient medications because it concurrently addresses two primary issues: the underlying inflammation causing the pain and the secondary, involuntary tightening (spasms) of the associated muscles. The rationale for this combination is based on the synergistic effect observed in complex pain conditions.


Composition: Aceclofenac, Thiocolchicoside, and Their Origins

The medication’s dual power comes from its two active ingredients [INN]: Aceclofenac and Thiocolchicoside.

  • Aceclofenac is a Nonsteroidal Anti-inflammatory Drug (NSAID) and a chemical derivative of Diclofenac.
  • Thiocolchicoside is a semi-synthetic derivative of colchicine.

The efficacy of the combination is derived from combining the anti-inflammatory properties of Aceclofenac with the myorelaxant properties of Thiocolchicoside. This formula is used to simultaneously treat muscle pain and the restriction of movement.


What is the General Purpose of the Dual-Action Formula?

The general therapeutic purpose of this formula is to provide powerful, concurrent relief for discomfort and reduced function when pain and inflammation are accompanied by painful muscle rigidity or spasm. The combination is used as an adjunctive treatment in painful muscle contractures related to conditions like low back pain, especially for short-term relief. The dual action is specifically recognized for its ability to improve the painful symptoms of muscle contraction.

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What side effects are possible with Aceclofenac/thiocolchicoside?

Aceclofenac/Thiocolchicoside: Possible Side Effects and Safety Information

Aceclofenac/thiocolchicoside is a combination medication used for pain and muscle relaxation. Like all medicines, it can cause side effects, although not everybody gets them. It's important to consult your healthcare provider if you experience any concerning symptoms.

Aceclofenac, a non-steroidal anti-inflammatory drug (NSAID), carries risks common to this class of medication, particularly affecting the gastrointestinal tract and cardiovascular system. Thiocolchicoside, a muscle relaxant, is associated with specific neurological and reproductive safety concerns.


Common Side Effects

Component Common Side Effects (Frequency ge 1%)
Aceclofenac Indigestion (dyspepsia), abdominal pain, nausea, diarrhea, elevated liver enzymes.
Thiocolchicoside Drowsiness, somnolence, gastric pain, diarrhea.

Serious Side Effects and Safety Warnings

Aceclofenac is associated with potential serious effects, including gastrointestinal ulceration, bleeding, or perforation. It may also increase the risk of serious cardiovascular thrombotic events (like heart attack or stroke), particularly with long-term, high-dose use. Hypersensitivity reactions (e.g., severe skin reactions or anaphylaxis) are also possible.

Thiocolchicoside has known potential for genotoxicity (damage to cell DNA), which has led to restrictions on its use. Due to its potential effect on the reproductive system, it is contraindicated in pregnancy and breastfeeding and should be used with caution in women of childbearing age who are not using effective contraception. Other serious effects include fainting (vasovagal syncope) and liver toxicity.


Contraindications and Precautions: This combination is typically contraindicated in patients with active gastrointestinal bleeding/ulcer, severe heart failure, severe kidney or liver impairment, and in women who are pregnant or breastfeeding. Patients with a history of asthma, hives, or allergic-type reactions after taking aspirin or other NSAIDs should not take this medication.

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Overdose and Emergency Response

Overdose and When to Seek Help

This section describes officially documented overdose manifestations and regulator-mandated emergency actions for the combination of Aceclofenac (NSAID) and Thiocolchicoside (SMR), based strictly on government regulatory sources.


Documented Overdose Manifestations and Severe Outcomes

Overdose may present with documented Gastrointestinal (GI) distress, including nausea, vomiting, diarrhoea, and epigastric pain. Central Nervous System (CNS) effects such as lethargy and drowsiness are also documented.

Severe or life-threatening outcomes officially associated with overexposure include acute renal failure, gastrointestinal bleeding, hypertension, respiratory depression, and coma. The potential for seizures or seizure recurrence is also noted in regulatory information for the muscle relaxant component.


Required Emergency Actions and Management

Immediate medical help must be sought when an overdose is suspected, due to the documented risk of severe complications. The regulatory guidance requires individuals to contact a poison control center for specific management information.

No specific antidote is known for the active components. Management is officially defined as symptomatic and supportive care under continuous medical supervision.

Regulatory documents outline procedural considerations such as the administration of activated charcoal and/or an osmotic cathartic for large overexposure, specifying the dosing for symptomatic pediatric patients (1 to 2 grams per kg of body weight).

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Therapeutic Uses of Aceclofenac/thiocolchicoside

What Aceclofenac/thiocolchicoside Treats: Main Uses and Benefits

Aceclofenac/thiocolchicoside is a fixed-dose combination commonly used when short-term symptomatic assistance is needed in conditions characterized by heightened patient distress. The combination may be relevant for symptomatic support across key therapeutic domains where symptoms related to physical discomfort and muscle tension cluster. The core therapeutic strategy aligns with guidance on symptomatic support for painful muscle contractures.


The medication is commonly used in situations involving acute musculoskeletal episodes, including acute low back pain, sciatica, torticollis, and symptomatic flares of certain forms of arthritis. It is relevant for managing symptom clusters that may appear suddenly, assisting patients with symptoms related to inflammatory or irritative states and increased muscular activity.

“It supports general well-being during symptomatic phases by easing distress when symptoms interfere with routine activities.”

The primary benefit contributes to improved comfort during periods of heightened symptoms when muscle rigidity and pain create noticeable interference with daily comfort. The supportive relief contributes to easing the overall symptom load during phases when symptoms become more noticeable.


Quick Fact: Symptomatic Support for Pain and Rigidity

This combination is commonly used across conditions presenting with acute episodes where symptoms related to both inflammatory states and increased muscular activity co-exist.

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Eligibility and Restrictions for Use

This fixed-dose combination product is subject to regulatory restrictions governing who can and cannot use the medicine, based on the profiles of its components.

Eligibility Scope

Classification Population/Condition
Allowed Adults and adolescents 16 years and older for short-term adjuvant treatment of painful muscle contractures [Source 1.4].
Contraindicated Pregnancy, lactation, and women of childbearing potential not using effective contraception [Source 1.3, 1.4].
Contraindicated Patients with active or history of recurrent peptic ulcers or GI bleeding, severe hepatic or renal failure, or established congestive heart failure (NYHA II–IV) [Source 1.1, 2.6].
Contraindicated Established ischaemic heart disease, peripheral arterial disease, or cerebrovascular disease [Source 2.6].
Not Recommended Children and adolescents under 16 years of age [Source 1.4].
Caution Required Older adults, patients with mild to moderate organ impairment (hepatic/renal), epilepsy or risk of convulsions, or a history of bronchial asthma [Source 1.1, 2.5].

Official Eligibility Statements

Regulatory documentation mandates that due to potential genotoxicity risks from a thiocolchicoside metabolite, use must be strictly limited to short-term periods and is contraindicated in pregnancy [Source 1.4]. Separately, the aceclofenac (NSAID) component contraindicates use in populations with pre-existing severe cardiovascular or gastrointestinal conditions [Source 2.6]. Eligibility is therefore strictly defined by these safety exclusions.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of this medication is primarily structured around the Aceclofenac component, which is a nonsteroidal anti-inflammatory drug (NSAID).

Formal Interaction Restrictions

Co-administration with other NSAIDs, including aspirin and COX-2 selective inhibitors, is officially advised to be avoided due to an additive risk of adverse effects, particularly concerning the gastrointestinal system.

Exposure-Modifying Interactions

Certain substances may have their plasma concentrations increased due to reduced renal elimination caused by Aceclofenac. These include Lithium and Digoxin, where close monitoring of plasma levels is required. The concomitant use of Methotrexate carries a risk of increased toxicity and plasma levels, especially if administered within 24 hours of Aceclofenac. Combining the medication with Ciclosporin increases the documented risk of nephrotoxicity.

Pharmacodynamic and Substance Interactions

There is an officially documented risk of an enhanced bleeding effect when Aceclofenac is co-administered with anti-coagulants (such as Warfarin), anti-platelet agents, and SSRIs.

The Thiocolchicoside component may lead to a possible increase in impact when combined with other medicines that have a muscle-relaxing effect on the muscular-skeletal system.

Regarding administration timing, NSAIDs should not be used for 8–12 days after Mifepristone administration as they may reduce the intended effect of Mifepristone.

Consumption of alcohol may increase the documented risk of severe adverse effects.

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Mechanism of Action

Modulating Prostaglandin Synthesis via COX-2 Inhibition

This domain covers the action of Aceclofenac, which primarily acts as a preferential inhibitor of the COX-2 enzyme. This mechanism blocks the metabolic cascade responsible for synthesizing pro-inflammatory prostaglandins like PGE2 at sites of tissue distress. The resulting physiological effect is a reduction of peripheral inflammatory mediator activity and a decreased responsiveness of peripheral nociceptors.


Enhancing Inhibitory Neurotransmission in the Spinal Cord

This domain describes the primary central mechanism of Thiocolchicoside, which acts on the Central Nervous System (CNS) to modulate motor control pathways. It functions as an agonist of spinal Glycine Receptors ( GlyRs), enhancing the natural inhibitory signals transmitted to the motor neurons. The physiological consequence is a direct reduction of involuntary efferent motor signaling resulting in decreased muscle tone.


Complementary Central and Peripheral Pathway Modulation

This combination is defined by its complementary dual mechanism, targeting two distinct physiological domains simultaneously: Aceclofenac addresses the peripheral chemical drivers of inflammation, while Thiocolchicoside modulates the centralized involuntary motor response. This synergy of peripheral pain signal reduction and central motor inhibition allows for a multi-level modulation of the feedback loop that often maintains the pathological efferent motor activity and tissue stress.

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Dosage and Administration Information

The usage of the Aceclofenac/thiocolchicoside fixed-dose combination (FDC) is governed by specific instructions concerning its route, dosing, frequency, and maximum duration. This medicine is formulated for oral administration as a tablet or capsule and must be swallowed whole with a sufficient quantity of liquid. The FDC is typically administered with or immediately after food to align with the product’s use profile.

The standard adult regimen involves taking the formulation—typically containing 100 mg of Aceclofenac and up to 8 mg of Thiocolchicoside per unit—twice daily (b.i.d.). The overarching principle for administration is to use the lowest effective dose for the shortest possible duration. The maximum daily dose for the Thiocolchicoside component is strictly limited to 16 mg per day.

Crucially, the treatment duration for the oral combination is restricted to a maximum of seven consecutive days. Dosing modifications are required for certain populations; for instance, in patients with mild-to-moderate hepatic impairment, a reduced initial daily dose of 100 mg of the Aceclofenac component is suggested. The medicine is not recommended for use in children and adolescents under the age of 16 or 18. If a dose is missed, standard practice advises to skip the missed dose and resume the usual schedule, without taking a double dose. This structure reflects the parameters for use.

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Recent Clinical Evidence

Research Evidence / Overview of Studies

Phase 3 Trials: Investigation and Focus

Research has explored the preclinical activity of the agent. Studies investigated the clinical effects of the agent in patients with a specific inflammatory condition.

  • Monotherapy Trials: Studies examined the agent as a single treatment. One study reported a finding of a change in symptom severity over a 12-week period. Study findings reported a difference in time to symptom onset, and research investigated whether the agent differed in effect on pain compared to placebo.
  • Combination Trials: A combination study evaluated the results when administered alongside a standard anti-inflammatory agent. The study protocols detailed how concurrent medications were managed during the trial.

Collected Events and Participant Response Studies

Studies on the agent’s profile have primarily focused on the collection of reported events and specific participant populations.

  • Long-term Data: A study of long-term use investigated the response of the agent in participants with liver impairment. The findings did not report any new or unexpected events compared to short-term data.
  • Renal Function: Research examined findings regarding the agent’s effect on renal function in study participants. The new formulation was evaluated in relation to acute symptoms, and study protocols documented the specific intake instructions used during the study.

Post-Marketing Surveillance and Real-World Evidence

Ongoing post-marketing surveillance continues to monitor the incidence of rare reported events. Real-world evidence studies have focused on participant-reported outcomes outside of the controlled clinical trial setting, further examining the agent’s use in broader populations.

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Frequently Asked Questions (FAQ)

Common questions about Aceclofenac/thiocolchicoside (FAQ)

Q: Is this medicine the same as taking a standard over-the-counter pain reliever?

A: No, this combination is classified as a prescription medicine and is not available as a standard over-the-counter (OTC) pain reliever. Unlike many OTC drugs, this medication combines a powerful anti-inflammatory agent with a centrally acting muscle relaxant, which means it requires professional oversight.

Q: How is the anti-inflammatory drug (Aceclofenac) related to other NSAIDs like Ibuprofen?

A: Aceclofenac is classified as a Non-Steroidal Anti-inflammatory Drug (NSAID), which is the same category as medications like Ibuprofen. Official regulatory documents note that Aceclofenac is a chemical derivative of Diclofenac. The safety warnings for Aceclofenac are similar to those for other NSAIDs and certain COX-2 inhibitors.

Q: Is Aceclofenac/thiocolchicoside intended for short-term use only?

A: Official guidance strictly restricts the duration of this treatment. Regulatory documents state that the oral combination should only be used for a maximum of seven consecutive days. Consistent with this, the medicine is generally used for the shortest duration necessary to manage symptoms.

Q: What general expectation should I have about the total length of treatment?

A: Official guidance on this class of medication emphasizes using the lowest effective dose for the shortest duration necessary to control symptoms. Regulatory advice indicates that the medicine is generally intended for use only briefly, consistent with the strict limitations on treatment duration.

Q: Does the medicine commonly cause drowsiness or dizziness?

A: Yes, official product information lists both drowsiness and dizziness among the commonly reported side effects. These effects are primarily associated with the muscle relaxant component, Thiocolchicoside, which is why official warnings advise caution regarding activities that require alertness.

Q: Do the side effects from Aceclofenac/thiocolchicoside usually go away after a few days?

A: Information from regulatory reports indicates that most of the common side effects are mild. These common effects typically tend to gradually resolve over time without the need for specific medical intervention.

Q: What are the signs of a potential severe side effect to watch out for?

A: Official product documents list observable signs that may indicate a severe effect. These include signs of gastrointestinal bleeding such as black stools or vomit containing blood. Other severe signs officially noted in product information include skin rash, facial swelling, or difficulty breathing.

Q: Why might a doctor advise against driving or operating machinery while on this treatment?

A: The medicine may cause Central Nervous System (CNS) effects such as drowsiness, dizziness, or visual disturbances. Due to these potential effects on alertness, official guidance advises against driving or operating heavy machinery unless the patient is certain they are fully alert and unimpaired.

Q: What happens if someone accidentally takes more than the prescribed amount?

A: Taking more than the maximum recommended amount is associated with potential severe effects. Regulatory information states that symptoms of overdose may include seizures, vomiting, severe abdominal pain, or signs of gastrointestinal bleeding such as black stools.

Q: Is there a known interaction between this medicine and alcohol consumption?

A: Yes, official warnings advise against consuming alcohol while undergoing treatment with this combination. This is because alcohol consumption may increase the documented risk of severe adverse effects, including increased drowsiness and an elevated potential for gastrointestinal risk.

Q: Can Aceclofenac/thiocolchicoside be taken along with antacids or stomach protectants?

A: Regulatory information on the Aceclofenac component, which affects the stomach lining, suggests caution with medicines that protect the stomach. While the drug is generally advised to be taken with food, some regional warnings specifically advise against the simultaneous use of antacids.

Q: Does this medicine interact with corticosteroid medications?

A: Official documents confirm that co-administration with corticosteroids carries an elevated risk. Combining this medicine with steroids increases the documented risk of severe side effects, specifically gastrointestinal ulcers or bleeding.

Q: How does Aceclofenac/thiocolchicoside affect blood pressure medications?

A: Official interaction data indicates that the Aceclofenac component may potentially reduce the effectiveness of certain antihypertensive medications (drugs used to control blood pressure). The interaction profile is typically reviewed by a healthcare professional before prescribing.

Q: Are there special considerations for taking this medicine if I have diabetes?

A: Yes, regulatory warnings list diabetes mellitus as one of the significant risk factors associated with this class of medication. Regulatory documents indicate that this type of pre-existing condition is a factor requiring careful review.

Q: Does this drug have any known effects on male or female fertility?

A: Official warnings confirm that the use of this combination may potentially impair female fertility. Furthermore, a metabolite of the drug is considered a risk factor for the impairment of male fertility as well.

Q: Is Aceclofenac/thiocolchicoside used for conditions outside of general muscle spasms and pain?

A: Yes, official indications show that the combination is also used to manage painful rheumatological conditions. These include ankylosing spondylitis, rheumatoid arthritis, and osteoarthritis.

Q: Is it necessary to continue physical therapy or rest while taking this medication?

A: Official lifestyle advice often included with the medicine describes supportive non-pharmacological measures. This guidance typically references rest, regular mild exercise for muscle stretching, and the potential benefit of massages.

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How should Aceclofenac/thiocolchicoside be stored and disposed of?

How to Store and Dispose of Aceclofenac/thiocolchicoside

Official regulatory documentation mandates specific environmental controls for the storage and handling of Aceclofenac/thiocolchicoside tablets to ensure product integrity.

Storage Requirements

The medicine must be stored at a temperature below 30 C. To prevent degradation, it is required to protect the product from light and store it in a dry place. As a general regulatory measure, the medication must be kept out of the reach of children.

Disposal Instructions

Disposal of any unused, expired, or waste material should be conducted in accordance with official procedures. The regulatory instruction specifies that unused product or waste material must be disposed of in accordance with local requirements.

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

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