Dentacid

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Medically reviewed

Marina Burgos

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 Dentacid

Property Description
Active ingredient Mefenamic Acid
Form Tablet, Hard capsule, Oral suspension
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Common use Pain relief, Inflammation management, Fever reduction
Origin Synthetic compound (Fenamate group)

Defining Dentacid: Composition and Pharmacological Class

Dentacid is a single-ingredient pharmaceutical product containing the active substance Mefenamic Acid (INN). It is formally classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID), a group of synthetic medicines clinically recognized for providing symptomatic relief from pain and inflammation.

Mefenamic Acid belongs chemically to the Fenamate group, which are derivatives of anthranilic acid. This chemical structure distinguishes its properties from those of other NSAID subclasses, such as the propionic acid derivatives. Mefenamic Acid functions as an analgesic and anti-inflammatory agent. As a pharmaceutical preparation, Dentacid's identity is defined by its active component, which makes it a non-narcotic pain reliever.

Available Forms and General Therapeutic Purpose

Dentacid is formulated for systemic absorption and is administered via the oral route, typically supplied as a tablet, a hard capsule, or an oral suspension. The availability of the oral suspension form provides a practical option for patients who may require a liquid preparation, ensuring flexible administration of the medication.

The general therapeutic purpose of this synthetic NSAID is rooted in its ability to address the symptoms of inflammatory processes. Its primary utility is to offer analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) effects. This class of medication is utilized for the symptomatic treatment of various conditions involving pain and inflammation. Dentacid's role is to provide relief from discomfort and reduce objective signs of inflammation and elevated body temperature.

What side effects are possible with Dentacid?

Possible Side Effects and Safety Information

Dentacid is a Nonsteroidal Anti-inflammatory Drug (NSAID) and carries documented risks associated with this drug class, including the potential for serious, life-threatening events. Use of the lowest effective dosage for the shortest possible duration is the standard approach to minimize these risks.


Serious and Clinically Significant Risks

System Organ Class Serious Adverse Reactions (Official Documentation)
Cardiovascular Thrombotic Events (e.g., myocardial infarction, stroke), which can be fatal. The drug is contraindicated for pain treatment immediately before or after Coronary Artery Bypass Graft (CABG) surgery.
Gastrointestinal Bleeding, Ulceration, and Perforation of the esophagus, stomach, or intestines, which can be fatal. This risk increases with the duration of therapy.
Hepatic/Renal Hepatotoxicity (e.g., severe hepatic reactions, fulminant hepatitis, liver failure) and Renal Toxicity (e.g., acute renal dysfunction, hyperkalemia, advanced renal disease contraindication).
Hypersensitivity Anaphylactic Reactions and Serious Skin Reactions (e.g., Stevens-Johnson Syndrome, DRESS). Discontinuation is required at the first sign of rash or other hypersensitivity.

Safety Considerations and Restrictions

  • Fetal Toxicity: Use is limited between 20 and 30 weeks gestation and avoided at 30 weeks and later due to risks of fetal renal dysfunction and premature closure of the fetal ductus arteriosus.
  • Monitoring: Blood pressure, renal function, liver function, and signs of hematologic toxicity (e.g., anemia) must be monitored, particularly in high-risk patients.
  • Contraindications: Known hypersensitivity to the drug or other NSAIDs, history of allergic reactions (asthma, urticaria) after taking aspirin or other NSAIDs, and use in the setting of CABG surgery.
  • Common Reactions: The most common adverse reactions often involve the gastrointestinal system and local application site effects (e.g., pruritus for some formulations), though frequency varies by specific formulation and dosage.

Overdose and Emergency Response

Overdose and when to seek help

Overdose of Dentacid (Mefenamic Acid) is associated with documented manifestations primarily affecting the central nervous system (CNS) and the gastrointestinal (GI) system, as stated in regulatory prescribing information.

Documented Manifestations and Severe Outcomes

CNS effects include drowsiness, lethargy, confusional states, and the distinct risk of seizures or convulsions. Gastrointestinal signs commonly observed are nausea, vomiting, and epigastric pain, with the potential for GI bleeding. Overdose is explicitly documented in regulatory sources as having led to severe complications, including acute renal failure and fatalities.

Required Emergency Actions

Immediate medical help is required in all cases of suspected overdose. The official guidance mandates that you must seek immediate medical attention and contact emergency services immediately if the affected individual has collapsed, experienced a seizure, has trouble breathing, or cannot be awakened (loss of consciousness). Monitoring and support of the patient's vital functions are required in the event of an overdose.

Management Protocol

Since the prescribing information confirms that no specific antidote is known, management is focused exclusively on providing symptomatic and supportive care. Decontamination procedures, such as the administration of activated charcoal or gastric lavage, may be considered as officially described.

Therapeutic Uses of Dentacid

What Dentacid Treats: Main Uses and Benefits

Dentacid, which contains the NSAID Mefenamic Acid, is commonly used to help manage symptoms related to mild to moderate pain, inflammation, and fever. This supportive therapeutic benefit is relevant across clinical settings that involve acute or unstable symptom patterns where short-term symptomatic assistance is needed.

The medication is generally applied in addressing conditions marked by increased physiological stress, such as primary dysmenorrhea (menstrual pain), pain from muscular aches, discomfort following dental or minor surgical procedures, and symptomatic relief for inflammatory joint conditions like rheumatoid arthritis and osteoarthritis.

“It is commonly used to help address symptom clusters that interfere with daily comfort, especially when they cluster into patterns requiring supportive management.”

This approach contributes to improved comfort during periods of heightened symptoms and offers symptomatic relief that helps patients cope more steadily with difficult episodes.


Quick Fact: Supports Management of Acute Pain and Cramping Symptoms


Regulatory References

  1. MedlinePlus Drug Information

Eligibility and Restrictions for Use

The eligibility profile for Dentacid (Mefenamic Acid) is defined by strict regulatory documentation concerning age, pre-existing health conditions, and physiological status. The medicine is contraindicated (must not be used) in several patient populations.

Eligibility Group Status as per Official Labeling
Approved Age Adolescents and Adults 14 years of age.
Pediatric Use Safety and efficacy not established for capsule/tablet form below 14 years.
Severe Organ Failure Contraindicated in severe heart, renal, or hepatic failure.
GI Disease Contraindicated in active GI ulceration or Inflammatory Bowel Disease.
CABG Surgery Contraindicated for treatment of peri-operative pain.
Late Pregnancy Contraindicated in the third trimester (30 weeks); use is avoided from 20 weeks gestation.
Lactation Use is not recommended for nursing mothers.

Dentacid is also strictly contraindicated for patients with a known hypersensitivity to Mefenamic Acid or a history of allergic reactions to other NSAIDs or Aspirin. Use in older adults and individuals with pre-existing cardiovascular conditions or dehydration requires special caution and monitoring.

What should I know about interactions with other medicines?

Dentacid Interactions with other medicines and products

Regulatory documents highlight significant interactions for Dentacid, which contains the NSAID Mefenamic Acid. Certain combinations are contraindicated, including concurrent use with Aspirin and other systemic NSAIDs (including COX-2 inhibitors), due to a substantially increased risk of serious gastrointestinal events. It is also contraindicated for peri-operative pain management following coronary artery bypass graft (CABG) surgery.


Pharmacodynamic Interaction Risks

Co-administration with Oral Anticoagulants (e.g., Warfarin) is documented to enhance their effects by displacing them from protein binding, leading to an increased risk of bleeding. Mefenamic Acid may also reduce the antihypertensive and diuretic efficacy of medications like ACE Inhibitors and Diuretics. This combination, particularly in elderly patients, also carries an increased risk of renal impairment.


Pharmacokinetic and Exposure Modifications

The medicine is metabolized by the CYP2C9 isoenzyme. Dentacid reduces the renal clearance of substances like Lithium and Methotrexate, which results in elevated plasma concentrations and a risk of toxicity. Co-administration with certain Magnesium Hydroxide-containing Antacids has been shown to significantly increase the rate and extent of Mefenamic Acid absorption.


Timing and Substance Constraints

NSAIDs, including Mefenamic Acid, should not be taken for 8 to 12 days after the administration of Mifepristone to avoid potentially reducing the efficacy of Mifepristone. The use of Alcohol is noted to increase the risk of gastrointestinal bleeding.

Mechanism of Action

The mechanism of Dentacid (Mefenamic Acid) involves the targeted intervention in key biochemical messengers, complemented by direct neural modulation, operating strictly within the body's physiological signaling pathways.


Inhibition of the Cyclooxygenase Enzyme System

The drug acts as an inhibitor of both Cyclooxygenase ( COX-1 and COX-2) enzymes, which are central to the eicosanoid synthesis pathway. By blocking the conversion of arachidonic acid, this mechanism suppresses the local production of prostaglandins, which are chemical signals involved in inflammation and nociceptor sensitization. This physiological adjustment acts to dampen signaling within the inflammatory cascade and increase the stimulus level required to activate nociceptors.


️ Central Hypothalamic Set-Point Adjustment

Mefenamic Acid exerts an effect within the central nervous system, specifically in the hypothalamus, which regulates core body temperature. Inhibition of COX in this region reduces the concentration of PGE2, enabling a shift in the elevated thermal set-point back toward its original physiological state.


Direct Neural and Cellular Signal Modulation

A secondary, prostaglandin-independent action involves the modulation of specific ion channels in peripheral nerve fibers and smooth muscle tissues. This direct cellular interference contributes to the drug's mechanism by reducing electrical signal propagation in afferent neurons and modulating smooth muscle contraction. This effect represents a secondary mechanism of action independent of the primary enzyme blockade.

Dosage and Administration Information

How to Use Dentacid

Dentacid, containing the active substance Mefenamic Acid, is utilized according to specific, short-term administration principles. The medication is always administered via the oral route, typically in the form of a capsule, tablet, or oral suspension.


Dosing and Administration Patterns

The standard approach for managing symptoms is to use the lowest effective dose for the shortest duration necessary.

Indication Initial Dose Maintenance Dose Maximum Duration
Acute Pain 500 mg once 250 mg every 6 hours (q6hr) 7 days
Primary Dysmenorrhea 500 mg once 250 mg every 6 hours (q6hr) 2 to 3 days

Procedural Instructions

Administration involves specific practical conditions to ensure proper use. The medicine is taken with food or milk to aid gastrointestinal tolerance. For the treatment of primary dysmenorrhea (menstrual pain), administration begins at the onset of bleeding and pain. If a dose is missed, the standard procedure is to skip the missed dose and continue the regular schedule, rather than taking a double dose.


Population-Specific Principle

For older adults, there is an emphasis on increased caution, specifying that the lowest effective dose should be used for the briefest time possible, which reflects the guiding principle for administration in this population.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Dentacid

This section provides an overview of the clinical research and evidence base for Dentacid (Mefenamic Acid), focusing on what types of studies have been conducted, the specific symptoms that were measured, and the known limitations in the research. It describes the evidence landscape according to authoritative sources, but does not offer clinical advice or instruction.


Evidence for Use in Primary Dysmenorrhea (Menstrual Pain)

The research on Dentacid was evaluated in Randomized Controlled Trials (RCTs) and systematic reviews, which explore the change in symptoms over short-term or episodic patterns. The populations that were studied were female patients diagnosed with primary dysmenorrhea, including both adults and adolescents. Researchers examined patient-reported outcomes describing perceived discomfort, focusing on the level of outcomes related to physical discomfort and changes in pain intensity over the menstrual period. The evidence focuses on the outcomes observed during short-term, acute episodes. Long-term effects are not fully established regarding the study of extended exposure over sustained periods.


Evidence for Use in Acute Mild to Moderate Pain

Research exploring outcomes in acute mild to moderate pain, such as discomfort following dental or minor surgical procedures, primarily comes from single-dose, placebo-controlled RCTs and systematic reviews. The populations evaluated were adults and adolescents (14 years of age) experiencing periods of heightened symptom activity. In these acute pain models, the studies monitored outcomes related to physical discomfort. Researchers examined patient-assessed outcomes describing perceived discomfort scores and the time monitored for initial changes in pain. The clinical research is structured around very short-term use, where the studied duration typically did not exceed seven days. Comparative evidence is limited against all other analgesic agents in every specific acute setting.


The Evidence Landscape: Areas of Uncertainty and Research Gaps

Key limitations in the current research include the follow-up durations were limited for all indications, meaning evidence quality varies across studies. Research for groups outside of the primary study populations, such as the older adult population or patients with complex, underlying chronic conditions, is limited. Data for populations with comorbidities are limited, and long-term effects are not fully established for these groups. Research describes group patterns, not outcomes for a single individual.

Key Studies & References

  1. Mefenamic Acid (MedlinePlus Drug Information)
  2. Mefenamic Acid Capsules (Official FDA Drug Label/Prescribing Information)

Frequently Asked Questions (FAQ)

Common questions about Dentacid (FAQ)


Q: What are the most common side effects patients report when starting Dentacid?

A: According to official product information, the most frequently reported adverse reactions are often related to the gastrointestinal system. These common effects include issues such as diarrhea, constipation, nausea, vomiting, heartburn, gas, and stomach pain. Dizziness is also commonly reported.


Q: Are there specific instructions for rinsing or waiting before eating after using Dentacid?

A: Regulatory documents state that Dentacid should be taken with food or milk. This is done to help minimize the potential for gastrointestinal upset. However, official information does not provide specific directions about rinsing or waiting for a set period of time after use before eating.


Q: Can Dentacid be used by people with specific medical conditions like diabetes?

A: Official product labeling emphasizes that individuals with pre-existing chronic conditions, such as diabetes, high blood pressure, or high cholesterol, should inform their healthcare provider. These conditions are noted as potential risk factors that may require additional caution when using NSAID medicines like Dentacid.


Q: Does Dentacid affect blood pressure or blood sugar levels?

A: Studies and regulatory warnings indicate that Dentacid, like other Nonsteroidal Anti-inflammatory Drugs (NSAIDs), can potentially cause or worsen pre-existing high blood pressure. For individuals with pre-existing hypertension, blood pressure monitoring is typically emphasized during therapy with this class of medication. Official drug information does not directly describe an effect on blood sugar levels.


Q: What are the differences between the various strengths or formulations of Dentacid?

A: Dentacid is manufactured in different forms, including capsules, tablets, and an oral suspension, which may also be available in various strengths. The availability of the oral suspension form provides a way to administer the medication to patients who may have difficulty swallowing pills. Different strengths are used to correspond to the specific dosage needed for the treated condition.


Q: Are there any specific foods or drinks that should be avoided while using Dentacid?

A: Regulatory documents specifically note that the consumption of alcohol while using the medicine is noted to increase the risk of serious gastrointestinal bleeding. There are no other specific foods or drinks listed for universal avoidance in official drug information.


Q: What is the recommended age limit for using Dentacid?

A: The medication is indicated for use in adolescents and adults who are mathbfge 14 years of age. While the labeling includes a general caution that older adults (mathbfge 65 years) may be at greater risk for some serious side effects, regulatory documents do not specify a maximum age limit that constitutes a contraindication.


Q: What types of professional healthcare providers can prescribe or recommend Dentacid?

A: Dentacid is classified as a prescription-only medicine ( Rx only) in the United States and other regions. This means that to receive the medication, it must be ordered or directed by an authorized, licensed healthcare professional.


Q: Is there a generic version of Dentacid available?

A: Yes, the active ingredient in Dentacid, which is Mefenamic Acid, is available in generic forms. These generic versions may be available in addition to any original brand-name product.


Q: What are the general rules for stopping the use of Dentacid?

A: Official documents approve the drug for short-term use only and define maximum durations for treatment. Therefore, the general rule for stopping the use is indicated when the acute symptoms being treated, such as pain or dysmenorrhea, have been managed, and the prescribed maximum duration has been met.


Q: Can I buy Dentacid without a doctor's recommendation?

A: No. Dentacid, which is a Nonsteroidal Anti-inflammatory Drug (NSAID), is classified as a prescription-only medicine ( Rx only). As a result, it is not available for purchase without a valid prescription from a licensed healthcare professional.


Q: What should I do if the side effects of Dentacid become bothersome?

A: Official patient guidance gives clear instructions to discontinue the medicine and contact a healthcare provider immediately if any signs of serious or severe adverse reactions occur. For bothersome side effects that are non-severe, it is generally recommended to consult a healthcare provider or pharmacist for further information.


Q: Does the time of day matter when using Dentacid?

A: Official instructions for administering the drug define the dosing frequency by the required interval, such as every 6 hours, or by the onset of symptoms, such as the beginning of menstrual pain. The instructions do not specify a mandatory time of day, such as morning or evening.


Q: Why is Dentacid sometimes described as an 'antiseptic'?

A: The medication is classified by regulatory bodies as a Nonsteroidal Anti-inflammatory Drug (NSAID) and is approved for its pain-relieving, anti-inflammatory, and fever-reducing effects. Regulatory documents do not describe the medicine as having an antiseptic function.


Q: Do official documents mention any potential for dependence on Dentacid?

A: Official sources classify Dentacid as a Nonsteroidal Anti-inflammatory Drug (NSAID) and a non-narcotic analgesic. This classification means the drug is not associated with the potential for physical dependence linked to opioid or narcotic medications.


Q: Are there any known interactions between Dentacid and herbal supplements?

A: While specific herbal supplements are not universally listed in regulatory documents, official patient safety information strongly advises individuals to tell their healthcare provider about all prescription, over-the-counter, vitamin, and herbal supplements being taken to allow for proper interaction screening.

How should Dentacid be stored and disposed of?

How to Store and Dispose of Dentacid?

Dentacid (Mefenamic Acid) must be stored according to official regulatory requirements to maintain its stability and prevent accidental harm.


Storage Requirements

Condition Requirement
Temperature Store at controlled room temperature: 68°F to 77°F (20°C to 25°C).
Protection Keep away from excess heat and moisture; do not store in damp areas.
Container Must be kept in the original container and sealed tightly closed.
Child Safety Store the medication out of the sight and reach of children.

Disposal Instructions

The preferred method for disposal is to use a drug take-back program or mail-back envelope. If a take-back option is unavailable, the medication is not on the FDA flush list and should be disposed of in the household trash. This requires mixing the medicine with an undesirable substance (like coffee grounds or dirt) and placing the mixture into a sealed bag. Disposal must not contaminate water sources.

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

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