What Revalan Treats: Main Uses and Benefits

Revalan is commonly used in situations involving certain distressing symptoms of physical discomfort. The active ingredient is used across therapeutic areas where short-term symptomatic assistance is needed. It is utilized for the symptomatic relief of acute pain and specific cyclical conditions, providing supportive relief when symptoms interfere with routine activities.

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Key Therapeutic Applications and Benefits

This medication is applied in addressing conditions characterized by episodic or fluctuating manifestations, such as the painful spasmodic cramping of primary dysmenorrhea and discomfort associated with abnormally heavy menstrual bleeding. It is also relevant for acute, mild to moderate pain, including scenarios like postoperative discomfort, dental pain, or musculoskeletal aches, and is commonly used to help manage fever.

It helps address symptom clusters that may become intense or disruptive, contributing to improved day-to-day comfort during symptomatic periods by easing the overall symptom load.

“This medicine is applied in settings where symptoms become temporarily overwhelming, supporting the patient during episodes of heightened discomfort.”

Quick Fact: Symptomatic Focus
Primary Focus: Painful menstrual cramps (dysmenorrhea).
Pain Level: Mild to moderate, acute pain.
Systemic Benefit: Helps address fever and inflammatory symptoms.

Regulatory References

1. The NIH DailyMed Drug Label for Mefenamic Acid

Who Can and Cannot Use Revalan? (Official Regulatory Information)

The population eligibility for Revalan (Mefenamic Acid) is strictly defined by government regulatory documents. Use is generally established for adults and adolescents 14 years of age and older for short-term management of acute pain and primary dysmenorrhea.

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Absolute Contraindications (Must Not Use)

Condition / Population	Regulatory Status
History of Hypersensitivity to Mefenamic Acid or other NSAIDs/Aspirin	Contraindicated
Severe Heart, Renal, or Hepatic Failure	Contraindicated
Active Gastrointestinal Ulceration/Inflammation	Contraindicated
Third Trimester of Pregnancy (ge 30 weeks)	Contraindicated
Peri-operative setting of CABG surgery	Contraindicated

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Populations Requiring Caution or Restriction

Use is not recommended for children under 14 years (capsule/tablet form), breastfeeding women, or women attempting to conceive. Older adults (ge 65) are eligible but must use the lowest effective dose for the shortest duration possible due to officially recognized increased risk of adverse events. Patients with non-severe renal dysfunction, liver dysfunction, or pre-existing cardiovascular risk factors (e.g., uncontrolled hypertension) require close monitoring and use only after careful consideration.

Interactions with other medicines and products

Revalan (Mefenamic Acid) has officially documented interaction patterns that are classified based on their effect on drug exposure and pharmacodynamic action, as noted by regulatory authorities. The medicine is formally contraindicated for the treatment of peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Pharmacodynamic and Pharmacokinetic Interactions

Co-administration with Oral Anticoagulants (such as Warfarin) is documented to enhance their effects, significantly increasing the risk of serious bleeding. The combination with other Non-Aspirin NSAIDs is also not recommended due to an elevated risk of gastrointestinal adverse events. Furthermore, Mefenamic Acid may reduce the efficacy of Antihypertensives, including ACE Inhibitors and Diuretics.

Pharmacokinetic interactions occur with certain medicines, such as Lithium and Methotrexate, where co-administration reduces their renal clearance, leading to elevated plasma concentrations and potential toxicity. Exposure to Mefenamic Acid itself is significantly increased when taken concurrently with Magnesium-containing Antacids.

Restrictions and Timing

Specific timing rules exist for certain agents; for instance, Mefenamic Acid should not be administered for 8–12 days after the administration of Mifepristone to prevent a reduction in the latter's intended effect. Alcohol consumption may increase the documented risk of serious gastrointestinal bleeding. Population-specific considerations note that the risk of acute renal failure in combination with diuretics is heightened in elderly or volume-depleted patients.

How Revalan Works: Mechanism of Action

The physiological effects of Mefenamic Acid are achieved by precisely targeting the enzymatic processes that govern key signaling pathways associated with nociception, tissue response, and thermoregulation.

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Blocking the Cyclooxygenase Enzyme System (COX)

The drug's primary action is serving as a non-selective competitive inhibitor of the Cyclooxygenase (COX) enzymes ( COX-1 and COX-2). By competing with the substrate Arachidonic Acid for the enzyme's active site, Mefenamic Acid effectively blocks the foundational step in the eicosanoid pathway. This mechanism dictates the drug's action profile through interference with processes driven by these specific lipid mediators.

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⬇️ Attenuation of Peripheral Nociceptive Sensitization

The molecular action of COX inhibition leads directly to the restricted synthesis of Prostaglandins, particularly PGE2, in peripheral tissues. These mediators are crucial for amplifying signals by sensitizing nociceptors (pain-sensing nerves). This chemical dampening alters the signaling potential within the peripheral nervous system, resulting in reduced amplification of nociceptive signals.

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️ Central Thermoregulatory Adjustment

Beyond the peripheral effects, the mechanism extends to the brain, where the inhibition of COX-2 in the hypothalamus prevents the rise of fever-inducing PGE2 levels. This targeted central pathway adjustment prevents the pathological elevation of the body's thermoregulatory set point. This central action contributes to the drug’s observed physiological adjustment profile.

Administration Guidelines (Mefenamic Acid)

This section outlines the use and dosing of the medication. Revalan is a product name that contains the active ingredient Mefenamic Acid.

Administration Scope

The medication is to be taken by the oral route (capsule or tablet).

Usage Parameter	General Instructions
Standard Adult Dose	Initial dose of 500 mg once, followed by 250 mg every 6 hours as needed.
Administration Timing	Take with food or milk to reduce the chance of gastrointestinal upset, and with a full glass of water (8 to 12 ounces).
Frequency and Duration	Dosing is every 6 hours as needed (PRN). The duration of therapy should not exceed one week (7 days) for acute pain or 2 to 3 days for primary dysmenorrhea.

Age-Specific Rules

• Adolescents (ge 14 years): The standard adult dosing schedule (500 mg initial, then 250 mg every 6 hours) is recommended.
• Children (< 14 years): Use for acute pain or primary dysmenorrhea is not recommended in this age group.
• Elderly Patients: Dosing should utilize the lowest effective dose for the shortest duration possible, reflecting increased risk in this population.

Missed Dose Protocol

If a dose is missed, take it as soon as it is remembered. However, if it is almost time for the next scheduled dose, the missed dose should be skipped, and the regular dosing schedule should be resumed. Do not take double or extra doses to make up for a missed dose.

These instructions define the structured, short-term use of the medication by setting limits on dose amount, frequency, and total treatment duration.

Research Evidence / Overview of Studies

Efficacy in Mild to Moderate Atopic Dermatitis

Research has explored whether the drug is associated with improvement in symptoms of mild to moderate atopic dermatitis (AD) in adults. The drug's mechanism of action involves the reduction of inflammation, which was examined for its potential association with the reduction of itching and skin lesions.

Studies have evaluated whether Eczema Area and Severity Index (EASI) scores were observed to be lower in patients who received the drug over the study period. Research examined the observed effect on managing Pruritus (itch), with a reduction in reported severity evaluated within 4 weeks of treatment.

Impact on Quality of Life and Psychological Factors

Studies investigated whether the drug was associated with an improvement in quality of life, by exploring its effect on sleep disturbance and anxiety related to AD.

Common questions about Revalan (FAQ)

Q: What is Revalan?

A: Revalan is a nonsteroidal anti-inflammatory drug (NSAID).

Q: What is Revalan used for?

A: Revalan is used to treat mild to moderate acute pain for a short period of time, usually no more than seven days. It is also used to treat menstrual pain (primary dysmenorrhea).

Q: How does Revalan work?

A: Revalan works by blocking the production of certain substances in the body, called prostaglandins, that cause pain and swelling. As an NSAID, it has analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) properties.

Q: What should I tell my healthcare provider before taking Revalan?

A: Before taking Revalan, tell your healthcare provider about all your medical conditions and all medicines you take. It is especially important to mention if you have:

• A history of asthma, especially if you have ever had an asthma attack or severe allergic reaction after taking aspirin or another NSAID.
• Any history of stomach ulcers or bleeding in the stomach or intestines.
• Heart disease or a history of heart attack or stroke, or if you will have heart bypass surgery (Coronary Artery Bypass Graft or CABG).
• Kidney disease or liver disease.
• Are pregnant, planning to become pregnant, or are breastfeeding.

Q: What are the possible serious side effects of Revalan?

A: Revalan, like other NSAIDs, can increase the risk of serious and potentially life-threatening side effects that can occur at any time, with or without warning symptoms. These risks include:

• Serious gastrointestinal issues, such as bleeding, ulceration, and perforation of the stomach or intestines.
• Cardiovascular events, such as an increased risk of heart attack and stroke. The risk may be higher if you use the medicine long-term or have heart disease.
• Severe allergic reactions and serious skin reactions, which can include rash, blistering, peeling skin, fever, or flu-like symptoms.

Q: What are the common side effects of Revalan?

A: The most common side effects of Revalan include:

• Diarrhea
• Nausea and vomiting
• Stomach pain or upset stomach
• Gas or bloating
• Dizziness
• Headache
• Ringing in the ears (tinnitus)

Q: Can I take other pain relievers with Revalan?

A: Do not take other nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or naproxen, or aspirin for pain relief while taking Revalan, unless directed by your healthcare provider. Taking more than one NSAID can increase your risk of serious stomach side effects. Many over-the-counter medicines contain these ingredients, so check labels carefully.

Q: How long can I take Revalan?

A: Revalan is typically used for short-term treatment, usually no longer than seven days for acute pain and two to three days for menstrual pain. You should use the lowest effective dose for the shortest possible time to minimize risks.

How to Store and Dispose of Revalan (Mefenamic Acid)

Official regulatory guidelines mandate specific conditions for the storage and disposal of Revalan.

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Required Storage Conditions

Revalan must be stored at room temperature, specifically at temperatures not exceeding 30°C (86°F).

• Protection: The medicine must be kept away from moisture and excess heat; it should not be stored in high-humidity areas, such as a bathroom.
• Container: Keep the medication in the container it came in, and ensure the container is tightly closed.
• Child Safety: It must be stored out of the sight and reach of children in a secure, elevated location.

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Official Disposal Instructions

Revalan must not be flushed down the toilet or poured down a drain. The preferred method for discarding unused or expired medicine is utilizing a drug take-back program or mail-back envelope. If a take-back option is unavailable, the medicine should be mixed with an undesirable substance, placed in a sealed container, and then discarded in the household trash, following governmental guidance.