Pongesic

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Pongesic

Quick Facts

Property Description
Active ingredient Mefenamic Acid
Form Capsule, Tablet, Oral Suspension
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
General purpose Pain relief, Anti-inflammation, Fever reduction
Origin Synthetic substance (Anthranilic acid derivative)

Pongesic is a medication whose active component is Mefenamic Acid. It is fundamentally defined as a Nonsteroidal Anti-Inflammatory Drug (NSAID). Its core purpose is to provide relief from pain, inflammation, and fever.


What Type of Medicine is Pongesic?

Pongesic is classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID) and contains the single active ingredient, Mefenamic Acid. Mefenamic Acid is a synthetic substance chemically categorized as an anthranilic acid derivative, which belongs to the distinct fenamate sub-class of NSAIDs.

The drug's classification as an NSAID places it in a group of medicines specifically designed to combat the underlying biological processes that cause common discomfort. The fenamate classification refers to this specific chemical structure, which is clinically recognized for providing rapid analgesic effects.

Composition and Available Forms (Capsule, Tablet, Suspension)

Pongesic is a single-ingredient product typically requiring a prescription for sale (Rx status). It is available for oral administration in standard pharmaceutical forms including the solid capsule and tablet, as well as a liquid oral suspension. The primary functional component is Mefenamic Acid, combined with various pharmaceutical excipients necessary to stabilize the drug and enable its delivery in the specific form.

The availability of different forms—solids versus the liquid oral suspension—is a matter of design to suit patient needs. The oral suspension form is particularly relevant for the pediatric patient group, allowing for measured administration to children. Regardless of the form taken, the goal is to deliver the precise dose of the active substance, Mefenamic Acid, into the body.

General Purpose: Pain Relief, Anti-inflammation, and Fever Reduction

The general purpose of Pongesic is to achieve analgesic (pain-relieving), anti-inflammatory (inflammation-reducing), and antipyretic (fever-reducing) effects. The core actions of the drug are centered on mitigating these three primary physical symptoms, a characteristic function of the NSAID class. This medicine helps reduce pain and fever by lessening inflammation.

By combining pain relief and the reduction of inflammation, the medication offers a broader benefit than simple pain relievers that lack significant anti-inflammatory properties. This foundational utility makes the drug generally suitable for managing acute discomfort, such as temporary musculoskeletal pain, helping to restore basic comfort and function.

Regulatory References

  1. Nonsteroidal Anti-Inflammatory Drug (NSAID)
  2. NSAID Drug Administration
  3. Mefenamic Acid Oral Suspension
  4. Mefenamic Acid for Pediatric Use
  5. Analgesic Effect of NSAIDs
  6. Anti-inflammatory Effect of NSAIDs
  7. Mefenamic Acid Antipyretic Effect
  8. NSAID Class Overview

What side effects are possible with Pongesic?

Possible Side Effects and Safety Information

Pongesic (mefenamic acid) is a Non-Steroidal Anti-Inflammatory Drug (NSAID) with officially documented safety concerns, including a Boxed Warning by the U.S. Food and Drug Administration (FDA) regarding two major classes of severe adverse reactions.

Serious and Clinically Significant Adverse Reactions

The primary safety risks involve the cardiovascular and gastrointestinal systems, which can be fatal. These serious events include:

  • Cardiovascular Thrombotic Events: Increased risk of myocardial infarction (heart attack) and stroke, which can occur early in treatment. This risk may be greater with higher doses or longer duration of use.
  • Gastrointestinal (GI) Adverse Events: Increased risk of bleeding, ulceration, and perforation in the stomach or intestines. These can occur without warning symptoms.
  • Renal and Hepatic Toxicity: Potential for new-onset hypertension, worsening of existing hypertension, fluid retention, kidney injury (including acute renal failure), and severe liver reactions.
  • Hypersensitivity: Risk of serious skin reactions, such as Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) syndrome, Stevens-Johnson Syndrome (SJS), and anaphylaxis.

Key Safety Limitations and Restrictions

To minimize potential harm, Pongesic is formally contraindicated (should not be used) in several situations:

Restriction Category Safety Consideration
Surgical Use Treatment of peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery.
Allergy History Patients with a history of asthma, hives, or other allergic-type reactions after taking aspirin or other NSAIDs.
Organ Function Patients with pre-existing renal disease or significantly impaired kidney function.

Older adults and those with pre-existing heart disease or GI conditions are generally at higher risk for serious complications. The lowest effective dose for the shortest duration necessary should be used to minimize potential adverse effects.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents for Pongesic (Mefenamic Acid) define the overdose profile by the potential for severe neurological and gastrointestinal (GI) toxicity, noting that fatalities have been reported.

Documented Manifestations and Severe Outcomes

Overdose presentations include significant Central Nervous System (CNS) symptoms such as seizures (convulsions), coma, extreme tiredness, confusion, vertigo, and loss of consciousness. Gastrointestinal manifestations include nausea, vomiting, stomach pain, and signs of hemorrhage like bloody vomit or black, tarry stools. Overdose can also result in acute renal failure. Regulatory analysis indicates Mefenamic Acid overdose carries a dose-related risk of CNS toxicity, especially convulsions.

Mandated Emergency Action

Treatment is limited to symptomatic and supportive care, as no specific antidote is known for this class of toxicity. Regulatory guidance mandates specific actions: Seek immediate medical attention for any suspected overdose. Immediately call emergency services (e.g., 911) if the person has collapsed, had a seizure, has trouble breathing, or cannot be awakened. Procedures to manage overdose may include gastric lavage or activated charcoal. Procedures like forced diuresis are officially noted to be ineffective due to the drug’s high protein binding.

Therapeutic Uses of Pongesic

What Pongesic Treats: Main Uses and Benefits

The medication is applied in addressing certain symptoms related to physical discomfort and is relevant in contexts marked by increased discomfort or tension. It is used across key therapeutic domains and is commonly used when short-term symptomatic assistance is needed to help manage pain, discomfort, and fever, thereby contributing to easing the overall symptom load. Its clinical indications cover three primary symptomatic areas.

Pongesic is primarily applied in addressing symptoms related to inflammatory or irritative states and is relevant for easing discomfort in conditions such as rheumatoid arthritis and osteoarthritis. It is also a key option for managing the cyclical pain of primary dysmenorrhea (menstrual cramps) and plays a role in managing excessive menstrual blood loss (menorrhagia). Furthermore, it supports relief for mild to moderate acute pain in common scenarios like toothache or following minor procedures. The therapeutic goal is to help patients cope more steadily with difficult, sudden-onset discomfort.


Quick Fact: Symptomatic Relief

Indication Category Symptoms Addressed Patient Benefit Focus
Gynecological Primary dysmenorrhea, Menorrhagia Assists with maintaining functional stability during symptomatic phases.
Acute Pain Toothache, post-procedural discomfort Supports patients during episodes of heightened discomfort.
Inflammatory Pain and stiffness in RA/OA Contributes to improved comfort and eases overall symptom load.

Eligibility and Restrictions for Use

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

Eligibility Scope

  • Populations for whom use is allowed (as stated in label): Adults and adolescents (typically 14 years and older) for short-term approved indications.
  • Populations for whom use is not recommended (if applicable): Pediatric patients under 14 years of age, as use is officially not established. Not recommended for women who are breastfeeding.
  • Populations for whom use is contraindicated: Patients with NSAID/Aspirin hypersensitivity, active GI ulceration or bleeding, severe renal or hepatic impairment, severe uncontrolled heart failure, and women in the third trimester of pregnancy (after 20 weeks gestation). Use is also prohibited during CABG surgery.
  • Age-related eligibility rules: Use is restricted to patients 14 years and older. Older adults require cautious use due to an increased risk profile.
  • Condition-specific eligibility rules: Contraindicated in severe organ failure. Use requires caution in mild-to-moderate renal or hepatic impairment and in patients with a history of inflammatory bowel disease.
  • Pregnancy and lactation eligibility status (if explicitly documented): Contraindicated in the third trimester of pregnancy. Not recommended during lactation.
  • Eligibility-related restrictions: Use is officially limited to a maximum duration of 7 days for acute pain indications.

Eligibility Classifications (High-Level)

  • Eligibility severity classification (as defined in official documents): Contraindicated (Absolute prohibition), Not Recommended (Avoid use), Use with Caution (Requires monitoring).
  • Regulatory basis (EMA / FDA / etc.): Based on formal Contraindication and Use in Specific Populations sections of government-approved labeling.
  • Eligibility-context constraints (as defined in official documents): Class-wide NSAID restriction and Organ-specific toxicity risk.

Resulting Eligibility Structure

Official eligibility statements:

  • Contraindicated in patients with a history of hypersensitivity to Aspirin or other NSAIDs.
  • Contraindicated for women beginning at 20 weeks gestation and throughout the remainder of pregnancy.
  • Use is not established and is typically not recommended for children under 14 years of age.

Connection to the overall eligibility profile (2–4 sentences): Governmental regulatory documents strictly define who can and cannot use Pongesic through formal eligibility classifications. These documents establish absolute contraindications for populations presenting high-risk profiles related to severe organ dysfunction, hypersensitivity, or late pregnancy. For other groups, the labels mandate conditional use or state that use is not recommended, setting clear boundaries based on age, duration, and co-existing conditions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official interaction profile for Pongesic (Mefenamic Acid) is categorized into clinically significant pharmacokinetic and pharmacodynamic domains, as documented in government regulatory sources.


Interaction Scope

Category Official Regulatory Documentation
Medicinal product categories with documented interactions Oral Anticoagulants, Antiplatelet Agents, SSRIs, Oral Corticosteroids, Lithium, Methotrexate, Diuretics, and Antihypertensives.
Mechanistic basis of interactions CYP2C9 Enzyme Metabolism and Reduced Renal Clearance (for co-medications) are documented mechanisms.
Timing-based interaction rules The medicine is contraindicated for the treatment of peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery.
Interaction-related restrictions Co-administration with other systemic non-aspirin NSAIDs is prohibited. Consumption of alcohol (ethanol) increases the risk of gastrointestinal bleeding.

Official Interaction Statements

  • Co-administration with Warfarin increases the risk of bleeding and requires close monitoring due to documented displacement from protein binding sites.
  • The effects of Antihypertensives (e.g., ACE Inhibitors, ARBs) and Diuretics may be officially decreased by co-administration.
  • Substances that significantly increase Mefenamic Acid absorption, such as Magnesium Hydroxide antacids, are documented.
  • Mefenamic Acid is documented to increase the plasma concentrations of Lithium and Methotrexate by reducing their renal clearance.

Connection to the overall interaction profile: Regulatory documents define the product's interaction structure primarily through two domains: pharmacokinetic interactions impacting clearance (affecting both Mefenamic Acid and co-medications) and pharmacodynamic interactions resulting in an additive risk of hemorrhage. Official labeling formalizes constraints, classifying certain combinations as contraindicated and noting that the efficacy of antihypertensive agents may be impaired.

Mechanism of Action

The drug acts primarily by the non-selective inhibition of Cyclooxygenase-1 (COX-1) and Cyclooxygenase-2 (COX-2) enzymes. This action halts the production of prostaglandins—the chemical mediators responsible for modulating nociceptive signal transmission and hypothalamic temperature regulation.

Mefenamic Acid engages secondary, non-prostaglandin mechanisms that modulate the resultant physiological consequences, particularly those related to its chemical class. These include the subunit-selective modulation of certain GABA-A Receptors in the CNS and the blockade of Volume-Regulated Anion Channels (VRAC) that influence the NLRP3 Inflammasome. This dual action influences neuronal excitability and cellular inflammatory signaling, in addition to the primary enzyme inhibition.

The molecular cascade initiated by COX inhibition leads to attenuation of signal transmission from peripheral nociceptors and the readjustment of the hypothalamic thermal set-point. The mechanism is constrained, however, by the accompanying inhibition of COX-1, which is necessary for certain gastrointestinal mucosal integrity and renal regulatory processes. The overall physiological consequence is a targeted adjustment within the eicosanoid and nociceptive signaling pathways.

Dosage and Administration Information

How to Use Pongesic (Mefenamic Acid): Official Administration Guidelines

This section outlines instructions for the proper administration and dosing of Pongesic.


Official Routes and Forms

Type Detail
Route of Administration The only approved method is Oral (by mouth).
Available Forms Capsule (250 mg), Tablet (250 mg, 500 mg), and Oral Suspension (50 mg/5 ml).

Standard Dosing and Frequency

Pongesic is a short-term, symptomatic treatment. Guidelines mandate using the lowest effective dose for the shortest possible duration.

Indication (Adults) Initial Dose Maintenance Dose Frequency
Acute Pain 500 mg 250 mg Every 6 hours (q6h) as needed
Primary Dysmenorrhea 500 mg 250 mg Every 6 hours (q6h) as needed
Menorrhagia 500 mg 500 mg Three times daily (t.i.d.)

Administration Context and Duration Limits

Instruction Type Guideline
Intake Condition Must be taken with food or milk (or a full glass of water) to minimize gastrointestinal discomfort.
Dysmenorrhea Timing Treatment should be initiated at the onset of menstrual pain and/or associated bleeding.
Maximum Duration For Acute Pain, treatment must not exceed 7 days. For Primary Dysmenorrhea, use is typically limited to 2 to 3 days per cycle.

Population-Specific Use

Dosage may require adjustment or extra caution for certain populations:

  • Pediatric Use: Not typically recommended for Acute Pain or Dysmenorrhea in children under 14 years. Weight-based regimens are defined for specific uses in younger children (6 months and older) in some regions.
  • Older Adults: The drug must be used with particular caution; the lowest dose compatible with symptom relief should be chosen.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Pongesic

Evidence for Use in Acute Pain and Menstrual Cramps

Research has studied the active ingredient in this medicine by focusing on contexts such as short-term pain following minor procedures and primary dysmenorrhea (menstrual cramps). The evidence base is heavily reliant on short-term, randomized controlled trials (RCTs) and comprehensive systematic reviews.

For acute pain scenarios, studies monitored outcomes related to physical discomfort over the initial hours following a single dose. The evidence so far describes patterns related to short-term changes in pain scores; however, the data derived from these settings often focuses solely on very short-term use. Similarly, for menstrual cramps, follow-up durations were limited, and long-term effects are not fully established.


Evidence for Inflammatory Conditions (Arthritis)

The evidence for using Pongesic in managing symptoms of inflammatory conditions like Rheumatoid Arthritis (RA) and Osteoarthritis (OA) is based on older, controlled clinical trials and comparator studies. Researchers used these trials to monitor outcomes reflecting daily functioning, such as grip strength and walking time, alongside monitoring of inflammation markers.

Findings describe patterns observed in the studies related to changes in functional measures when the drug was observed in patients. However, a key limitation is that much of this foundational evidence is older, and follow-up durations were limited. Data for long-term management of chronic conditions remain insufficient.


What Is Still Uncertain About Pongesic Research

The existing evidence base highlights several areas where knowledge is incomplete. Comparative evidence is lacking to definitively rank the medication against the full range of alternative Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) for all approved uses. Furthermore, data for certain groups remain insufficient, especially for specific subsets of children and older adults with complex health needs. Finally, findings describe group patterns, not personal outcomes, and the evidence highlights what is known—and what is still uncertain—about how the medicine may be associated with changes in symptoms across different patient characteristics.

Frequently Asked Questions (FAQ)

Common questions about Pongesic (FAQ)

Q: What is the approved use of Pongesic?

According to the official product information, Pongesic is approved for the management of mild to moderate pain in adults. It is specifically indicated to provide short-term relief for various types of discomfort, such as muscle aches and minor injuries.

Q: How long does it take for Pongesic to start working?

Studies and official information indicate that Pongesic generally begins to relieve pain within 30 to 60 minutes after administration. The time it takes to feel the full effects may vary slightly, which is consistent with the product label.

Q: Can I use Pongesic with an anti-inflammatory drug (NSAID)?

Regulatory documents state that co-administration of Pongesic with other non-steroidal anti-inflammatory drugs (NSAIDs) is generally not recommended. This combination may increase the risk of certain side effects, particularly those affecting the stomach or kidneys. Information in the regulatory documents should always be reviewed regarding the co-administration of pain relievers.

Q: Is Pongesic safe to use for a long period of time?

Official product information emphasizes that Pongesic is intended for short-term use only. Prolonged or chronic use is associated with potential health risks, especially concerning the liver and kidneys. The medicine is generally prescribed for short-term use, and prolonged duration is not typically supported by the product's official indication.

Q: Does Pongesic cause drowsiness?

According to the official product information, drowsiness is reported as an uncommon side effect of Pongesic. While many users may not experience it, the official documentation mentions this potential effect, and users are generally advised to note how the medication affects them.

Q: What should I do if I forget a dose of Pongesic?

Information on managing missed doses, including timing and guidance on avoiding double doses, is provided in the official 'How to use Pongesic' section. Specific instructions for forgotten doses are detailed there and are crucial for maintaining the intended effect and safety profile of the medicine.

Q: Can Pongesic be used by people with kidney issues?

The official product information indicates that Pongesic should be used with caution, or is contraindicated, in patients with pre-existing or severe kidney impairment. Regulatory documents indicate that the presence of kidney issues may require special consideration or preclude the use of this medicine. Specific details are found within the full eligibility section of the product label.

How should Pongesic be stored and disposed of?

How to Store and Dispose of Pongesic (Mefenamic Acid)

Pongesic (Mefenamic Acid) must be stored and disposed of according to specific regulatory requirements to maintain product integrity and safety.


Storage and Container Requirements

The medicine must be stored at Controlled Room Temperature, which is defined as 20 C to 25 C (68 F to 77 F). The product should be kept in its original container with the lid tightly closed to protect it from moisture and excessive heat. A mandatory safety requirement is to store the medicine out of the sight and reach of children.


Disposal Instructions

Unused or expired Pongesic should not be flushed down a toilet or poured down a drain. The preferred disposal method is a drug take-back program. If one is unavailable, the medicine can be mixed with an undesirable substance (like dirt or coffee grounds), placed in a sealed container, and discarded in the household trash.

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

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