Diclovith-b

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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.

Overview of Diclovith-b

Diclovith-B: Quick Overview and Differentiation

Quick Facts

Property Description
Active Ingredients Diclofenac Sodium (NSAID), Thiamine (B1), Pyridoxine (B6), Cyanocobalamin (B12)
Primary Class Nonsteroidal Anti-inflammatory Drug (NSAID) + B-Complex Vitamins
Typical Form Injection or hard capsule/tablet (Requires prescription in many regions)
Core Use Focus Pain, inflammation, especially with nerve involvement (e.g., lumbago, sciatica)
INN/Combination International Nonproprietary Name (INN) combination formulation

What is Diclovith-B?

Diclovith-B is a fixed-dose combination medication that unites the potent pain relief of a nonsteroidal anti-inflammatory drug (NSAID) with three neurotropic B-complex vitamins. Its key components are diclofenac sodium, which targets inflammation and pain, and the essential B-vitamins: thiamine (B1), pyridoxine (B6), and cyanocobalamin (B12).

This formulation is clinically recognized for its dual-action approach. The diclofenac component is utilized for its established effectiveness in managing conditions like osteoarthritis and rheumatoid arthritis. This characterizes the primary drug as a medically trusted option for reducing inflammation.

Differentiation and Combination Rationale

The distinctive feature of Diclovith-B is the inclusion of the B-vitamins. Pharmacological rationale suggests that the B-vitamins play a critical role in nerve health and may enhance the analgesic effect of diclofenac, particularly in nerve-related pain conditions. Unlike generic diclofenac monotherapy, this combination is typically positioned for painful syndromes with a clear neurological origin, such as sciatica or lumbago. It is commonly administered as a required prescription (Rx) product, though the specific dosage and format can vary internationally.

Regulatory References

  1. NIH DailyMed for Diclofenac
  2. NIH DailyMed Approval

What side effects are possible with Diclovith-b?

Possible Side Effects and Safety Information

The safety profile of Diclovith-b is governed by officially documented risks, primarily focusing on two major categories of serious adverse events as defined in regulatory documents.

Serious and Clinically Significant Risks

Official regulatory information emphasizes the potential for serious cardiovascular thrombotic events, including myocardial infarction (heart attack) and stroke, which can be fatal. This risk may increase with longer duration of use and in patients with pre-existing cardiovascular risk factors. Diclovith-b is formally contraindicated for use in the setting of coronary artery bypass graft (CABG) surgery.

Another major safety focus is on serious gastrointestinal (GI) adverse events, such as bleeding, ulceration, and perforation of the stomach or intestines, which can also be fatal. These risks may similarly be increased with higher doses and longer duration of treatment.

Common Adverse Reactions

Adverse reactions documented as common in regulatory sources often involve the gastrointestinal system and include abdominal pain, indigestion (dyspepsia), nausea, diarrhea, constipation, and flatulence. Other common events include headache and dizziness.

Safety Restrictions and Population Considerations

The risk of serious GI and cardiovascular events means regulatory documents advise using the lowest effective dose for the shortest duration possible.

Population-specific restrictions include the formal contraindication of the drug starting at 30 weeks of pregnancy due to the potential for premature closure of the fetal ductus arteriosus. The drug is also restricted in patients with a history of allergic-type reactions (such as asthma or hives) to aspirin or other similar medicines.

Overdose and Emergency Response

🆘 Overdose and When to Seek Help

The official regulatory guidance mandates that in the event of any suspected overdose with Diclovith-B, immediate medical attention must be sought. This action is required due to the potential for severe, life-threatening outcomes associated with the Diclofenac component.

Documented Manifestations

Overdose presentations officially documented in prescribing information involve gastrointestinal and central nervous system (CNS) effects. Common signs include epigastric pain, nausea, vomiting, diarrhea, headache, drowsiness, and tinnitus. More serious manifestations include gastrointestinal bleeding.

Severe Outcomes and Required Response

Acute, massive ingestions are associated with severe physiological findings such as acute renal failure, liver damage, hypotension, generalized seizures, and coma. Regulatory guidance notes that elderly patients and those with pre-existing hepatic or renal impairment are at greater risk for serious events.

Management is restricted to symptomatic and supportive treatment, as no specific antidote is known. Procedures such as administering activated charcoal may be considered in acute settings. Hospital monitoring is required, involving the continuous assessment of vital signs and renal and hepatic function.

Therapeutic Uses of Diclovith-b

What Diclovith-B Treats: Main Uses and Benefits

Diclovith-B is primarily focused on symptomatic relief and providing supportive management during periods when symptoms become more noticeable. This medication is commonly used to help with symptoms related to inflammatory or irritative states. It is applied across domains where additional symptomatic support is needed, addressing conditions characterized by systemic or localized discomfort, episodic manifestations, and acute or disruptive symptom patterns.

The medicine is used when groups of symptoms, such as physical discomfort and functional strain, create noticeable interference with daily life. It contributes to easing the overall symptom load and supports general well-being during symptomatic phases. This is relevant across condition categories that produce significant symptomatic burden.

“It provides supportive relief when symptoms interfere with routine activities.”

Quick Fact: Supports Easing Acute Discomfort

Diclovith-B is often used when symptoms intensify and short-term supportive relief is needed, assisting with maintaining functional stability during difficult episodes.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Diclovith-B

The eligibility to use Diclovith-B, a combination medicine containing the NSAID diclofenac, is strictly defined by official regulatory documentation. Exclusion is based on patient history, pre-existing conditions, and physiological status.


Category Eligibility Constraint (Official Regulatory Statement)
Populations Contraindicated Must not use if there is known hypersensitivity to diclofenac, aspirin, or any NSAID. Contraindicated for patients with active gastrointestinal bleeding, ulceration, or perforation, and for the treatment of pain following Coronary Artery Bypass Graft (CABG) surgery
Condition-Specific Restrictions Avoid use in patients with established severe heart failure (NYHA Class II-IV), advanced renal disease, or ischemic heart disease. Avoid use if recently diagnosed with a Myocardial Infarction (MI).
Age-Related Status Pediatric use is generally not established due to insufficient safety and efficacy data. Elderly patients are at an increased risk for serious gastrointestinal and renal adverse events and require special caution.
Pregnancy and Lactation Contraindicated starting at 30 weeks gestation (third trimester) due to risk of fetal harm. Avoid use from 20 weeks gestation. Use while breastfeeding is not recommended due to limited data on effects in the infant.

Connection to the overall eligibility profile: Official regulatory documents strictly define the eligibility for Diclovith-B by listing numerous absolute contraindications related to cardiovascular history, gastrointestinal disease, and known NSAID sensitivity, thereby establishing groups that must not use the medicine. Furthermore, the label classifies other groups, such as the elderly, pregnant women, and patients with organ impairment, as requiring avoidance or special caution, which formally limits use to specific, conditional scenarios under regulatory oversight.

What should I know about interactions with other medicines?

Diclovith-B Interactions with other medicines and products

Official regulatory documents define several crucial interaction patterns for Diclovith-B, primarily driven by its Diclofenac component and, secondarily, by Pyridoxine (Vitamin B6).

Contraindicated Combinations and Restrictions

The co-administration of Diclovith-B with other systemic NSAIDs (including COX-2 inhibitors) must be avoided due to the documented additive risk of gastrointestinal (GI) adverse effects. Similarly, combining the medicine with Aspirin at analgesic doses is not recommended due to a significantly increased risk of GI bleeding. The use of the drug is formally contraindicated in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Interactions Altering Systemic Exposure and Toxicity

Diclofenac is documented to raise the plasma concentrations of co-administered medicines such as Lithium and Digoxin, requiring careful regulatory management. The simultaneous use of Anticoagulants, Systemic Corticosteroids, or SSRIs is associated with an officially recorded increased risk of GI bleeding. Co-administration with ACE Inhibitors or Diuretics may lead to the deterioration of renal function, particularly in elderly or volume-depleted patients.

Specific B-Vitamin Interactions

Due to the Pyridoxine content, this medicinal product is documented to reduce the therapeutic effect of Levodopa by increasing its peripheral metabolism, a constraint that is managed if Levodopa is co-administered with a dopa decarboxylase inhibitor. Administration with alcohol may increase GI risk, and food may reduce the systemic effectiveness of certain Diclofenac formulations.

Mechanism of Action

The mechanism of Diclovith-B is characterized by a synergistic, dual-path approach that targets both the chemical processes of inflammation and the structural integrity of the nervous system.

Targeted Inhibition of Prostaglandin Synthesis

The Diclofenac component functions as a competitive inhibitor of the Cyclooxygenase-2 ( COX-2) enzyme. By blocking the active site of COX-2, the drug halts the conversion of Arachidonic Acid into PGE2 and other pro-inflammatory prostaglandins. This molecular suppression initiates a cascade that leads to the attenuation of peripheral inflammatory processes and nociceptor sensitization, which are key steps in lowering pain signal initiation.

Neurotrophic Support and Nociceptive Modulation

The B-Vitamins ( B1, B6, B12) engage essential neuronal metabolic pathways as cofactors, promoting the maintenance of the myelin sheath and the fundamental structure of nerve fibers. Additionally, these vitamins modulate the stability and electrical properties of the neuronal membrane, including activity at voltage-gated sodium channels. This combined mechanism provides structural support and modulates the excitability of nerve tissue, contributing to the stabilization of abnormal electrical signaling.

Potentiation Through Dual-Pathway Synergy

The combination integrates two distinct mechanistic domains: chemical mediation (Diclofenac) and neuronal trophism ( B-Vitamins). The B-Vitamins modulate the neuronal response, which potentiates the physiological dampening of nociceptive signaling resulting from COX inhibition. This dual mechanism provides a coordinated approach for modulating both the inflammatory chemical response and the stability of the pain transmission pathways.

Dosage and Administration Information

Official Administration Guidelines for Diclovith-b

Diclovith-b (Diclofenac sodium injectable) is administered via deep intramuscular (IM) injection or as an intravenous (IV) infusion. Adherence to the prescribed method and dosage is mandatory, and the lowest effective dose for the shortest duration necessary must be used to control symptoms. The injectable form is typically limited to a maximum of two days of use, with continuation of treatment, if required, via oral or rectal forms.


Dosage and Method of Administration

Administration Scope Official Instruction (Adults)
Route of Administration Deep IM injection or IV infusion (not bolus injection)
IM Injection Dose 75 mg once daily. May be repeated after 6 hours if necessary. Must be deep intragluteal injection into the upper outer quadrant.
IV Infusion Dose 75 mg over a period of 30 minutes to 2 hours for moderate to severe post-operative pain. Can be repeated after 4 to 6 hours if necessary.
Maximum Daily Dose Do not exceed 150 mg within any 24-hour period.
Preparation Requirements For IV infusion, the solution must be diluted with 0.9% sodium chloride or 5% glucose solution and buffered with sodium bicarbonate (e.g., 0.5 ml of 8.4% sodium bicarbonate per 500 ml infusion solution).
Age-Group Rules Not recommended for use in children and adolescents (under 18 years of age).

Official Procedural Steps

  1. Select Route: Determine if the administration is for deep IM injection or IV infusion.
  2. IM Administration: Inject a single dose of 75 mg deeply into the upper outer quadrant of the gluteal muscle, using aseptic technique.
  3. IV Preparation: For IV infusion, dilute the 75 mg dose with an appropriate buffered IV fluid (sodium chloride or glucose solution with added sodium bicarbonate).
  4. IV Administration: Administer the diluted dose as a slow, continuous infusion over 30 minutes to 2 hours.
  5. Dose Repetition: Doses may be repeated after 6 hours (IM) or 4 to 6 hours (IV), but the total daily dose must not exceed 150 mg.

Recent Clinical Evidence

Research evidence / Overview of Studies for Diclovith-b

This overview describes the types of research and studies conducted on the Diclovith-b combination (Diclofenac plus B-Vitamins) according to regulatory and scientific literature. The research provides insight by describing how symptoms evolved in the observed populations. Research does not provide individual predictions.


Evidence for Acute Low Back Pain and Vertebral Syndromes

The most extensive research for the Diclovith-b combination was studied for use in research exploring how symptoms change over time during acute episodes of lower back pain (lumbago) and related painful vertebral syndromes. Researchers primarily utilized short-term, double-blind Randomized Controlled Trials (RCTs).

Studies examined outcomes related to physical discomfort, specifically measuring patient-reported pain intensity and changes in daily functioning or activity level. Some trials described patterns where time required to reach a specific measured pain score was shorter when compared to the diclofenac monotherapy group. These findings describe group patterns related to outcomes describing episodic or acute changes.

Research on Painful Degenerative Conditions

Research has explored the use of Diclovith-b in conditions characterized by fluctuating or episodic manifestations, such as pain associated with Osteoarthritis (OA). The studies monitored patient-reported outcomes describing perceived discomfort and functional status. Research also examined the measured quantity of the NSAID (diclofenac) used by patients in the combination group, a concept known as NSAID-sparing.

What is Still Uncertain About Diclovith-b

The available evidence is most extensive primarily for research exploring short-term changes in acute low back pain, but the overall certainty remains low for long-term effects or for chronic, ongoing conditions. Research on acute pain due to trauma or surgery is based on modest sample sizes and very short observation periods, limiting the generalizability of the findings. Research on special populations like older adults is also limited. The research highlights what is known and what is still uncertain regarding its use.

Key Studies & References

  1. B-vitamins in conjunction with NSAIDs in pain therapy: clinical review (PubMed)
  2. Diclofenac Sodium Drug Information (NIH DailyMed Approval)
  3. Diclofenac Combination Uses (NIH MedlinePlus Drug Information)

Frequently Asked Questions (FAQ)

Common questions about Diclovith-b (FAQ)


Q: How quickly does Diclovith-b usually start to work?

The time it takes for the medicine to begin its effect is described in official documents as being dependent on the specific formulation. For the injectable forms, peak concentrations are reached rapidly after administration. For some oral forms used for chronic conditions, official product information indicates that the full intended effect may take several weeks.

Q: Can Diclovith-b be taken with food, or is it better on an empty stomach?

Official guidance on taking the medicine with food depends on the specific formulation prescribed. Taking some forms of the medicine with food may reduce the rate at which it is absorbed into the body. Some forms may be taken with food, which may help manage stomach discomfort.

Q: What is the reason Diclovith-b cannot be used by people with certain stomach conditions?

Regulatory information indicates that the medicine functions by affecting substances involved in pain, inflammation, and also the maintenance of the stomach lining. Blocking these can increase the risk of serious gastrointestinal events like bleeding and ulceration.

Q: How does Diclovith-b get eliminated from the body?

The medicine is primarily processed (broken down) by the liver and is eliminated from the body through the urine and bile (feces). The half-life of the unchanged diclofenac component is officially documented as being approximately one to two hours.

Q: Are there any long-term side effects associated with Diclovith-b use?

Official warnings emphasize that using this medicine for longer durations is associated with an increased risk of serious cardiovascular (heart attack and stroke) and gastrointestinal (bleeding and ulcer) events. For prolonged treatment, regulatory guidance describes the need for regular monitoring of the patient's blood count and liver or kidney function.

Q: What should I do if I notice a rash while taking Diclovith-b?

Skin rash and itching are documented side effects of the medicine. Official documents note that serious, sometimes life-threatening, skin reactions have been reported. Such events may lead to the medicine being discontinued.

Q: Is it true that Diclovith-b can cause stomach problems?

Yes, regulatory sources indicate that common side effects often involve the gastrointestinal system and can include abdominal pain, indigestion, and nausea. Serious gastrointestinal events like bleeding and ulceration are also a known, serious risk.

Q: Does Diclovith-b affect sleep?

Official regulatory documents include reports of central nervous system adverse events such as insomnia (difficulty sleeping) and drowsiness. These effects are generally considered to be occasional or rare.

Q: Can Diclovith-b be used for headaches?

The Diclofenac component of this medicine is approved in certain specialized formulations for the acute treatment of migraine headaches in adults. The specific uses depend on the drug's formulation.

Q: What happens if I accidentally take Diclovith-b twice?

In the event of accidental overdose, official information regarding symptoms may include gastrointestinal issues like nausea, vomiting, and stomach pain. This type of event requires immediate medical attention.

Q: How long does Diclovith-b stay in my system?

The elimination half-life of the unchanged diclofenac component is officially documented as being approximately one to two hours. The half-life is the time it takes for half of the drug to be eliminated from the bloodstream.

Q: Can people who are pregnant use Diclovith-b?

The medicine is contraindicated (must not be used) starting at 30 weeks of pregnancy (the third trimester) due to the risk of fetal harm. Official guidance is to avoid use generally from 20 weeks gestation.

Q: What makes Diclovith-b different from other similar pain relief medicines?

The key difference is the inclusion of B-complex vitamins alongside the anti-inflammatory drug, Diclofenac. The combination is studied for its dual mechanism that targets inflammation and provides support for nerve health, which may be relevant for pain with a neurological component.

Q: Is Diclovith-b known to cause allergic reactions?

Yes, allergic reactions (hypersensitivity) are documented as a potential adverse effect. These include rare, severe reactions like anaphylaxis (a severe, life-threatening reaction), which can occur even if the person has not previously taken the medicine.

Q: Do you have to take Diclovith-b at the exact same time every day?

When the medicine is used regularly, official guidance generally suggests taking it around the same time each day. This helps maintain a consistent amount of the medicine in the body.

Q: Is it normal to feel a bit dizzy after starting Diclovith-b?

Dizziness is documented in regulatory sources as a common adverse effect (meaning it may affect up to 1 in 10 treated people) of the Diclofenac component. If dizziness is experienced, official guidance states that individuals should refrain from driving.

Q: Are there specific food items to avoid when taking Diclovith-b?

There are no specific food items universally restricted when taking this medicine, but taking some formulations with food may reduce the rate of absorption. Some versions may contain phenylalanine, which is an important consideration for patients with Phenylketonuria (PKU).

Q: What organ does Diclovith-b process through primarily?

The active component, Diclofenac, is primarily processed (metabolized) through the liver. It is important to note that the medicine is also eliminated through the kidneys.

Q: Does Diclovith-b have a risk of dependence or addiction?

This medicine is classified as a Nonsteroidal Anti-inflammatory Drug (NSAID) and is not listed in official regulatory documents as having a risk of dependence or addiction.

Q: Can Diclovith-b be crushed or split in half?

If the medicine is in an enteric-coated or extended-release tablet form, official instructions state that it must not be cut, crushed, or chewed. These forms are designed to be swallowed whole to maintain the way the medicine is released and to ensure its stability.

Q: What is the purpose of the 'b' in the name Diclovith-b?

The 'b' in the name signifies the inclusion of B-complex vitamins in the fixed-dose combination. These vitamins are Thiamine (B1), Pyridoxine (B6), and Cyanocobalamin (B12), which are included to support nerve health.

Q: Will taking Diclovith-b affect my ability to drive or operate machinery?

Since the medicine can cause side effects like dizziness or other nervous system disturbances, official guidance states that individuals who experience these effects should refrain from driving or operating machinery.

Q: Can I stop taking Diclovith-b whenever I feel better?

Official guidance emphasizes that the medicine is typically used for the shortest duration possible consistent with the medicine's approved uses. The injectable form, for example, is limited to two days of use.

Q: Is there a generic version of Diclovith-b available?

Yes, this combination of Diclofenac and B-Vitamins is a recognized formulation and is available under various generic and combination brand names internationally.

Q: Does Diclovith-b cause weight gain or loss?

Regulatory documents list weight changes as an occasional or rare metabolic and nutritional adverse event. This is not classified as a common side effect.

Q: Is Diclovith-b used in other countries besides the U.S.?

Yes, this combination formulation is a widely recognized medicinal product and is commercially available in numerous countries globally under various brand names.

Q: What are the official warnings listed for Diclovith-b?

Official documents include prominent warnings regarding the potential for serious cardiovascular thrombotic events (such as heart attack and stroke) and serious gastrointestinal events (such as bleeding and ulceration).

Q: Can Diclovith-b be taken with alcohol?

Regulatory documents warn that the use of this medicine with alcohol may increase the risk of gastrointestinal side effects, such as stomach irritation or bleeding.

Q: What are the common signs of an interaction with another drug and Diclovith-b?

The signs of a possible adverse drug interaction often relate to the affected body system. For example, some interactions may present as signs of bleeding (like bloody or black, tarry stools) or symptoms of impaired kidney or liver function.

Q: Is Diclovith-b safe for teenagers to take?

Use in children and adolescents is generally not established due to limited safety data. The injectable form is not recommended for those under 18 years of age, and eligibility for other forms depends on the specific formulation and regional regulations.

Q: Is Diclovith-b considered a strong pain reliever?

The medicine's active component, Diclofenac, is officially classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). This is a class of medication recognized for its potent analgesic (pain-relieving) and anti-inflammatory effects.

How should Diclovith-b be stored and disposed of?

Official Storage and Disposal Instructions

Official regulatory guidance dictates specific conditions for storing and disposing of Diclovith-b (Diclofenac) to maintain its quality and ensure safety.

Storage Requirements

Requirement Details
Temperature Store at controlled room temperature, typically 25 C (77 F). Avoid excess heat.
Environment Keep the product in its original container, tightly closed, and in a dry place.
Protection Do not freeze the medicine. Store out of the sight and reach of children.
Stability Check the official label for any specific instructions on stability or shelf-life after opening the container.

Disposal Instructions

Unused or expired Diclovith-b must be disposed of according to local environmental regulations. Official instructions prohibit releasing the medicine into the environment, such as by flushing it down the toilet or pouring it into a drain. Disposal must adhere to formal waste management procedures to prevent aquatic contamination.

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

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