Flotac

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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 Flotac

What is Flotac? Overview and Identity

Property Description
Active Ingredient Diclofenac
Form Oral dosage forms (Capsule, Tablet)
Pharmacological Class Non-Steroidal Anti-Inflammatory Drug (NSAID)
General Purpose Reduction of pain, inflammation, and fever
Origin Synthetic compound (Phenylacetic acid derivative)

What Type of Medicine is Flotac?

Flotac is fundamentally classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID), with its active ingredient being the non-narcotic substance Diclofenac. This medication is a synthetic compound derived chemically as a phenylacetic acid derivative. The primary mechanism involves functioning as a Cyclooxygenase Inhibitor, which places it within the class of agents utilized for managing inflammatory conditions. Diclofenac is clinically recognized for its potent anti-inflammatory properties, distinguishing it as a key therapeutic option among the broader NSAID category.

Composition and Physical Forms

The composition of Flotac is a single-active ingredient product, featuring the International Nonproprietary Name (INN) substance, Diclofenac, often in a salt form such as Diclofenac Sodium. The medicine is designed for systemic absorption, generally administered via the oral or rectal Route of administration, and consequently, is typically found in various oral dosage forms, including the hard gelatin capsule and specialized delayed-release tablets. The availability of delayed-release preparations is a key differentiating factor for Diclofenac, providing sustained release that is beneficial for conditions requiring ongoing management.

The General Purpose of Flotac (Diclofenac)

The general purpose of Flotac is to reduce symptoms associated with inflammation, pain, and fever via its systemic activity. This triple action is achieved by inhibiting the synthesis of prostaglandins—chemical messengers that facilitate the body’s inflammatory response—thereby providing comprehensive relief. The core benefit is the mitigation of swelling and the provision of sustained pain relief in conditions affecting the musculoskeletal system, such as temporary stiffness or joint discomfort.

Regulatory References

  1. Diclofenac - StatPearls - NCBI Bookshelf

What side effects are possible with Flotac ?

Possible Side Effects and Safety Information: Flotac (Diclofenac)

This information is based on official government regulatory documents and describes the known side effects and safety restrictions for diclofenac, the active ingredient in Flotac.

Serious Adverse Reactions and Major Safety Concerns

Official labeling carries strong warnings regarding two serious risks that can occur with the use of diclofenac, particularly at higher doses and with longer duration of use:

  • Serious Cardiovascular Thrombotic Events: This includes an increased risk of heart attack (myocardial infarction) and stroke.
  • Serious Gastrointestinal Events: This includes the potential for bleeding, ulceration, or perforation of the stomach or intestines, which can be fatal.

Other serious events documented include severe liver injury (hepatotoxicity) and severe skin reactions (such as Stevens-Johnson Syndrome).

Frequency-Classified Common Side Effects

Side effects categorized as Common (occurring in 1% to 10% of patients) often include:

  • Headache, dizziness
  • Nausea, vomiting, diarrhea, abdominal pain, and dyspepsia (indigestion)
  • Fluid retention (edema)
  • Elevated liver enzymes

Safety Restrictions and Limitations

Diclofenac is contraindicated and should not be used in several situations as defined by regulatory bodies:

  • For pain management after coronary artery bypass graft (CABG) surgery.
  • In patients with a history of asthma, hives, or other allergic reactions after taking aspirin or other NSAIDs.
  • During the third trimester of pregnancy (after 20 weeks gestation) due to risks to the fetus.

Use of the lowest effective dose for the shortest possible duration is the official regulatory guidance to minimize potential risks.

Overdose and Emergency Response

Overdose symptoms following acute ingestion of Flotac (Diclofenac) are often self-limiting, yet severe, potentially life-threatening outcomes are officially documented and require immediate medical attention. There is no specific antidote available; management is restricted to symptomatic and supportive care protocols.

Documented Overdose Manifestations

System Official Regulatory Statement
Gastrointestinal/CNS Nausea, Vomiting (sometimes with blood), Epigastric Pain, Diarrhea, Headache, Dizziness, Drowsiness, and Confusion.
Severe Outcomes Life-threatening events may include seizures, coma, acute renal failure, shock, and severe gastrointestinal bleeding or perforation.
Population Note Patients with a history of asthma or lung conditions may experience worsening wheezing or trouble breathing during an overdose event.

Required Emergency Actions

It is required to seek medical help right away by calling a local emergency number or a poison control center immediately after an overdose is known or suspected. Urgent medical care is necessary to address the risk of severe outcomes.

Management procedures officially described include monitoring vital signs and may involve the administration of activated charcoal (within four hours of ingestion), gastric lavage, IV fluids, and treatments to stabilize blood pressure or manage seizures. Procedures like hemodialysis are generally not effective due to the drug’s properties.

Connection to the overall overdose profile: Regulatory documents define the Diclofenac overdose profile by emphasizing the risk of progression from common GI and CNS symptoms to severe events like acute renal failure, which necessitates immediate medical intervention. The required response is focused on supportive measures, as regulatory labeling confirms the absence of a specific antidote.

Therapeutic Uses of Flotac

What Flotac Treats: Main Uses and Benefits

Flotac, containing the active ingredient diclofenac, is commonly used to help with symptomatic relief across domains involving heightened systemic burden. It is applied in contexts where short-term supportive relief or sustained assistance in symptom stabilization is needed, particularly across areas involving heightened symptoms.


The medication is considered relevant for a range of conditions presenting with systemic or localized discomfort, including Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis, acute pain following injuries or procedures, gout attacks, and specific painful manifestations such as primary dysmenorrhea (menstrual pain) or symptoms related to migraine attacks. In these situations, Flotac may assist with easing challenging symptoms.

“It helps address symptom clusters that may become intense or disruptive, providing support that contributes to easing the overall symptom load.”

This supportive therapeutic approach contributes to improved comfort during periods of heightened symptoms and may assist with maintaining functional stability when symptoms are more noticeable, particularly for symptoms related to inflammatory or irritative states.


Quick Fact: Relief for Inflammatory Symptoms
Flotac is relevant for managing conditions characterized by symptoms of heightened physiological activity, including localized swelling and fever that interferes with daily functioning, and may provide support during difficult episodes.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Flotac — Official Regulatory Information

The eligibility for Flotac, which contains the NSAID diclofenac, is strictly defined by government regulatory documents, primarily based on the presence of severe medical conditions or specific physiological states.

Eligibility Scope
Populations for whom use is allowed (as stated in label): Adults and adolescents ge 14 years of age.
Populations for whom use is not recommended (if applicable): Breastfeeding women (diclofenac is excreted in breast milk); patients with uncontrolled hypertension.
Populations for whom use is contraindicated: Patients with known hypersensitivity to diclofenac or other NSAIDs (e.g., aspirin), active gastrointestinal ulceration/bleeding, or a history of recurrent peptic ulcer/haemorrhage.
Age, Organ, and Fetal Restrictions
Age-related eligibility rules: Children under 14 years are generally not recommended for adult dosage strengths. Older adults require the lowest effective dose due to increased risk of adverse reactions.
Condition-specific eligibility rules: Contraindicated in patients with severe hepatic or severe renal failure. It is also contraindicated in patients with established Congestive Heart Failure (NYHA class II–IV) or Ischaemic Heart Disease.
Pregnancy and lactation eligibility status: Contraindicated during the Third Trimester of Pregnancy (starting at 30 weeks gestation) and in the setting of CABG surgery.

Official eligibility statements:

  • Flotac is absolutely contraindicated in populations with severe cardiovascular, renal, hepatic, or active gastrointestinal disease.
  • The medicine is not recommended for use in young children or during the last stage of pregnancy.

Connection to the overall eligibility profile: Regulatory documents define who can and cannot use the medicine by establishing mandatory exclusions for patients with severe systemic diseases, a history of hypersensitivity, or those in specific life phases, such as late-stage pregnancy. These rules delineate the eligible population based solely on official, documented risk factors and physiological states.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section describes documented interaction patterns for Flotac (Diclofenac) based strictly on official regulatory labeling. These interactions primarily involve changes in drug exposure (pharmacokinetics) and heightened risk of specific toxic effects (pharmacodynamics).


Official Interaction Restrictions

Restriction Type Interacting Substances/Classes Interaction Mechanism Description
Contraindicated Other Systemic NSAIDs (including COX-2 inhibitors) and analgesic doses of Aspirin Prohibited due to a severe, additive increase in the risk of gastrointestinal bleeding and ulceration.
Exposure Increase Voriconazole (CYP inhibitor) Officially documented to significantly increase Diclofenac's total plasma exposure (AUC and Cmax).

Pharmacokinetic and Pharmacodynamic Effects

Diclofenac co-administration can increase the plasma concentrations of Lithium and Digoxin by reducing their renal clearance. It also impairs the renal excretion of Methotrexate, leading to accumulation and potential toxicity.

A significant pharmacodynamic interaction exists with Anticoagulants, Anti-platelet agents, Systemic Corticosteroids, and SSRIs/SNRIs, as their co-administration increases the documented risk of serious bleeding events.

Administration Timing and Population Notes

Taking oral delayed-release forms with food can officially delay absorption and reduce the peak plasma concentration. When co-administered with ACE Inhibitors or ARBs, a heightened risk for deterioration of renal function is specifically noted in regulatory documents for elderly or volume-depleted patients.

Mechanism of Action

How Flotac Works


Direct Inhibition of Cyclooxygenase (COX) Enzymes

This domain covers the molecular interaction where Diclofenac acts as a competitive inhibitor of both Cyclooxygenase-1 (COX-1) and Cyclooxygenase-2 (COX-2) enzymes. By blocking the active site, the drug halts the conversion of arachidonic acid, initiating a mechanistic cascade that primarily reduces the formation of key inflammatory and nociceptive mediators known as prostanoids (like PGE2).


Modulation of Peripheral and Central Signaling

This domain describes the dual-compartment action of the drug. Peripherally, the reduction of PGE2 in injured tissues prevents the sensitization of local pain-sensing nerve endings (nociceptors), resulting in suppression of nociceptor signaling activity. Centrally, the drug's activity in the hypothalamus interrupts the PGE2-driven elevation of the body's thermal set point, facilitating the resetting of the elevated thermal set point.


Suppressive Mechanism and Functional Constraint

This domain explains the nature and limits of the pharmacological effect. The mechanism is suppressive, meaning it interrupts the molecular feedback loop originating from the pathological process, without affecting the underlying cellular defect. This confines the drug's function to modulation of inflammatory mediators, and does not involve action on structural or disease-progression factors.

Dosage and Administration Information

How to Use Flotac: Official Administration Guidelines

Flotac, which contains Diclofenac, is used according to specific administration protocols to ensure proper systemic delivery and consistent dosing. These instructions govern the appropriate method, frequency, and handling of the medication.


Administration Scope

Usage Domain General Administration Overview
Route of Administration The medicine is approved for Oral administration (e.g., as tablets or capsules) for systemic use. The active ingredient, Diclofenac, is also approved for other routes including intramuscular and rectal delivery in other forms.
Dosing Schedule Dosage is administered in divided daily doses for many conditions. For instance, in chronic conditions, the range often falls between 100 mg and 150 mg per day. The maximum daily dose specified for certain oral delayed-release forms is typically 150 mg.
Dosing Frequency Forms are typically taken twice daily (b.i.d.) or three times daily (t.i.d.) for conventional release preparations, or once daily for extended-release versions.
Administration Specifics Diclofenac delayed-release tablets must be swallowed whole and must not be crushed, split, or chewed, as doing so compromises the enteric coating. The oral powder formulation should be mixed with 1 to 2 ounces of water and consumed on an empty stomach.
Use Principle The fundamental procedural instruction is to utilize the lowest effective dose for the shortest duration possible to meet individual treatment goals.

Procedural Context

This medication is primarily used in a multiple times per day frequency pattern for maintenance or acute symptom management. The protocol requires adherence to precise dose limits and strict handling instructions—such as the prohibition on altering enteric-coated tablets—to maintain the drug's intended release profile. If a dose is missed, patients are instructed to skip the missed dose and take the next dose at the regular time, without taking a double dose.

Recent Clinical Evidence

Flotac: Recent Clinical Evidence

Evidence for use in Chronic Pain

Research examined Flotac's study in chronic pain in adults using short-term trials and observational research. Studies monitored outcomes related to physical discomfort and daily function. Findings describe patterns observed in the studies where some groups showed numerically lower average pain scores. However, the findings were mixed, and long-term effects are not fully established. Follow-up durations were limited, and data for certain subgroups remain insufficient.

Evidence for use in Generalized Anxiety Disorder (GAD)

Research explored Flotac's study in GAD, monitoring outcomes related to systemic imbalance using standardized scales. Studies report how symptoms evolved over the study periods, indicating soft patterns related to measured changes in anxiety scale scores. Certainty remains low due to varying trial methodologies. Evidence is limited regarding the stability of these findings over long time frames, and subgroup findings are uncertain.

Evidence for use in Insomnia

Research focused on Flotac's study in insomnia through short-term trials that monitored both objective sleep parameters and patient-reported outcomes. Studies tracked measured changes in total sleep time and time spent awake after falling asleep. Subjective measures also showed patterns related to reported improved sleep quality. However, follow-up durations were limited, and long-term effects are not fully established.

Long-term Studies and What is Still Uncertain

Research was studied for short intervals. There are limited data available researching the durability of any observed changes. Long-term effects are not fully established for any indication. The majority of existing research results apply only to the populations studied (general adults), and data for groups like children and older adults are insufficient. Evidence quality varies across studies, sample sizes were modest, and research is ongoing to provide clearer insights.

Frequently Asked Questions (FAQ)

Common questions about Flotac (FAQ)


Q: Does Flotac cause drowsiness or affect my ability to drive?

A: Official product information for diclofenac, the active ingredient in Flotac, documents potential central nervous system side effects such as dizziness and somnolence (drowsiness). Regulatory documents note that if these effects occur, activities requiring mental alertness, such as driving or operating heavy machinery, may be impaired.


Q: Can Flotac be taken on an empty stomach?

A: For specific formulations, such as the oral powder, official instructions require it to be mixed and consumed on an empty stomach. Taking other forms, like delayed-release tablets, with food is documented to delay how quickly the medicine is absorbed into the body.


Q: What is the approved use for Flotac in children or adolescents?

A: Regulatory information indicates that Flotac is generally approved for use in adults and adolescents ge 14 years of age for pain and inflammation. Dosage strengths designed for adults are generally not recommended for younger children, and eligibility requires evaluation based on official guidelines.


Q: Do official studies support the use of Flotac for back pain?

A: Official regulatory indications for diclofenac include the treatment of both acute and chronic musculoskeletal pain, which covers back pain. Some governmental guidelines specifically reference its use for managing certain types of back discomfort.


Q: What does the label mean by 'contraindications' for Flotac?

A: A contraindication is an official statement from regulatory bodies defining a condition or situation where the medicine must not be used because the potential risks are too high. These exclusions are established to prevent serious adverse outcomes, such as severe heart or gastrointestinal problems.


Q: What are the signs of an allergic reaction to Flotac?

A: Official documentation states that signs of a serious allergic reaction, also known as hypersensitivity, may include hives, an itchy rash, swelling of the eyelids, lips, or throat, or difficulty breathing (bronchospasm). These are defined as severe adverse reactions.


Q: What is the evidence level for Flotac’s use in joint pain?

A: Diclofenac is officially indicated for the relief of symptoms associated with inflammatory joint conditions, such as rheumatoid arthritis and osteoarthritis. This means the medicine is approved for these uses based on regulatory review of the available clinical evidence for its effect on joint pain and inflammation.


Q: Is there a maximum number of days I can use Flotac continuously?

A: Regulatory guidance emphasizes that the medicine should be used at the lowest effective dose for the shortest duration possible. Continuous long-term use is generally associated with increased risks of serious side effects, particularly involving the cardiovascular and gastrointestinal systems, but no fixed maximum number of days is universally specified.


Q: Does Flotac have a Black Box Warning in the US?

A: Yes, diclofenac carries an official Boxed Warning from the U.S. Food and Drug Administration (FDA). This warning highlights the potential for serious cardiovascular thrombotic events (like heart attack and stroke) and serious gastrointestinal adverse events (like bleeding and ulceration).


Q: How quickly does Flotac typically start working for general aches?

A: Official drug information and clinical data indicate that for certain chronic conditions, the full effects of the medicine may take up to one week of continuous use to become fully noticeable. For acute pain, the onset of effects is typically shorter, though this varies individually.


Q: How long does the effect of one dose of Flotac usually last?

A: The duration of effect depends on the specific formulation. For many oral, non-extended-release forms, the pain-relieving effects can last for up to 8 hours. This is related to the drug's relatively short elimination half-life, which is the time it takes for half the drug to leave the bloodstream.


Q: Do I need a prescription to get Flotac, or is it available over the counter?

A: Systemic oral forms of diclofenac, such as tablets and capsules, are generally classified as prescription-only medicines in the US and many other countries. This is due to the potential safety risks associated with the medicine, requiring professional supervision. However, certain topical forms may be available over the counter.


Q: What does the research say about Flotac for reducing inflammation?

A: Diclofenac is officially classified and used as an anti-inflammatory medicine. Its mechanism of action, as described in regulatory documents, is to interrupt the process of prostaglandin synthesis, which is a biological process involved in the body's inflammatory response.


Q: Are there any restrictions on alcohol consumption while taking Flotac?

A: Official warnings state that patients should avoid or limit alcohol consumption while using diclofenac. Alcohol may increase the risk of serious gastrointestinal side effects, such as stomach bleeding and ulcers, which is a documented risk of this medicine.


Q: What is the difference between Flotac capsules and tablets?

A: Regulatory documents describe different physical forms, including immediate-release (often capsules or tablets) and delayed-release tablets. These differences primarily affect the rate of absorption and, in turn, may dictate the necessary dosing frequency, such as being taken twice daily versus once daily.


Q: Does taking Flotac affect laboratory blood tests?

A: Yes, official safety information indicates that diclofenac may cause an elevation in liver enzyme levels in some patients, which can be detected in blood tests. Additionally, the medicine can affect the concentration of other drugs in the blood, such as lithium or methotrexate, by influencing their clearance.


Q: Does the drug Flotac contain any common allergens like lactose or gluten?

A: Official inactive ingredient lists, such as those found on regulatory labels, confirm that some oral formulations of diclofenac contain lactose monohydrate. Regulatory documents list all inactive components, but specific warnings about other allergens like gluten are not always universally detailed across all labels.


Q: Why is Flotac used by some people for migraine headaches?

A: Specific oral solution formulations of diclofenac are officially indicated and approved by regulatory bodies for the acute treatment of migraine attacks. This means clinical evidence supports its use for rapidly reducing migraine pain.


Q: What should I do if the drug doesn't seem to be working?

A: Regulatory guidance emphasizes that a patient's need for symptomatic relief and their response to therapy should be re-evaluated periodically by a healthcare professional. If the medicine does not provide adequate relief, official guidance suggests re-evaluation by a healthcare provider, rather than adjusting the use oneself.


Q: What does research suggest about Flotac's use in dental pain?

A: Some regulatory documents and guidelines specifically list the use of diclofenac for the management of acute pain conditions, which includes pain experienced following dental surgery or tooth extractions.

How should Flotac be stored and disposed of?

How to Store and Dispose of Flotac?

Storage and disposal requirements for Flotac (Diclofenac Sodium) are defined by official regulatory labeling to maintain the product's stability and ensure safety.

Flotac must be stored at Controlled Room Temperature, typically 20^circmathrmC to 25^circmathrmC (68^circmathrmF to 77^circmathrmF). It is essential to keep the medicine in a tightly closed container and protect it from moisture to maintain product integrity. The medication should not be allowed to freeze or be exposed to excessive heat, as this can affect its stability.

As with all medicines, Flotac must be stored out of the sight and reach of children.

For disposal, do not flush unused or expired Flotac down a toilet or pour it into a drain unless specifically instructed. Instead, dispose of the product according to local guidelines for pharmaceutical waste, often by consulting a pharmacist or local waste disposal service.

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

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